SFTP - SSH File Transfer Protocol

What is SFTP?

SFTP stands for SSH File Transfer Protocol (or Secure File Transfer Protocol). It’s a standard network protocol used to transfer files securely between a client and a server over a TCP/IP network, typically using SSH.

What is the purpose of SFTP?

• Secure file transfers over an encrypted channel.

• Remote file management (upload, download, delete, rename, etc.).

• Compliance with data protection and privacy standards.

• Secure business-to-business (B2B) data exchange.

• Widely used in web development, system administration, and automation.

How does it work?

• Client connects to the SFTP server – usually using SSH credentials.

• Authentication – Username/password or SSH key-based authentication.

• Secure file operations – Upload, download, delete, rename files.

• All communication is encrypted using SSH.

• The session ends when the client disconnects.

• Operates over a single encrypted connection (unlike FTP, which uses separate command/data channels).

Where is SFTP used?

• Web hosting – Uploading website content securely.

• Backup systems – Remote and automated secure backups.

• Software distribution – Distributing patches, updates securely.

• IT administration – Managing logs and configuration files on servers.

• Financial and healthcare sectors – Where secure file exchange is critical.

Which OSI Layer does this protocol belong to?

• SFTP operates at the Application Layer (Layer 7) of the OSI model.

• It uses application-level commands like GET, PUT, LIST, etc.

• It runs over SSH, which in turn uses TCP (Layer 4) for transport.

Topics in this section,

• Learnings in this section

• Terminology

• Version Info

• SFTP Version&RFC Details

• SFTP Basic Setup on Ubuntu using IPv4

• SFTP Basic Setup on Ubuntu using IPv6

• SFTP Protocol Packet Details

• SFTP Usecases

• SFTP Basic Features

• SFTP Feature : Secure Data Transfer

• SFTP Feature : Authentication

• SFTP Feature : File Upload

• SFTP Feature : File Download

• SFTP Feature : Directory Listing

• SFTP Feature : File Rename

• SFTP Feature : File Deletion

• SFTP Feature : Directory Creation

• SFTP Feature : Directory Deletion

• SFTP Feature : File Permissions Management

• SFTP Feature : Resume Interrupted Transfers

• SFTP Feature : File Integrity Verification

• SFTP Feature : Logging and Auditing

• SFTP Feature : Cross-Platform Compatibility

• SFTP Feature : Firewall-Friendly

• SFTP Feature : Compression Support

• SFTP Feature : Symbolic Link Handling

• SFTP Feature : Atomic Operations

• SFTP Feature : Session Management

• SFTP Feature : Integration with SSH

• Reference links

Learnings in this section

• In this section, you are going to learn

Terminology

• Terminology

Version Info

• Version Info

SFTP Version&RFC Details

sno	RTMP Version	RFC / Standard	Core / Contribution	Year
1	N/A	Draft (not finalized as RFC)	SSH File Transfer Protocol v3 (widely supported), v4v6 (not widely supported)	~20012006 (drafts)
2	N/A	RFC 913	Simple File Transfer Protocol (unrelated to SSH-based SFTP)	1984
3	N/A	RFC 42504254	Core SSH Protocols (underpin SFTP)	2006

SFTP Basic Setup on Ubuntu using IPv4

• Setup

SFTP Basic Setup on Ubuntu using IPv6

• Setup

SFTP Protocol Packet Details

SFTP INIT Packet

S.No	Protocol Packets	Description	Size(bytes)
1	SFTP INIT Packet	Client initiates session by sending protocol version over SSH.	~25
	Command	SSH_FXP_INIT(value=1)	1
	Arguments	Version, Extensions	4 + variable
	Data (Payload)	Binary encoded version info over SSH encrypted channel	0

SFTP VERSION Packet

2	SFTP VERSION Packet	Server responds with protocol version and extensions	~25
	Command	SSH_FXP_VERSION (2)	1
	Arguments	Version, Extensions	4 + variable
	Data (Payload)	Binary encoded version info over SSH encrypted channel	0

SFTP OPEN Packet

3	SFTP OPEN Packet	Client requests to open a file with mode flags	~60
	Command	SSH_FXP_OPEN (3)	4
	Arguments	Filename, Flags, Attributes (variable)	~20-30 + 4 + variable
	Data (Payload)	Binary packet: command, filename, flags, attributes	0

SFTP READ Packet

4	SFTP READ Packet	Client requests file data chunk by offset and length	50-1050
	Command	SSH_FXP_READ (5)	1
	Arguments	Handle, Offset , Length	~16 + 8 + 4
	Data (Payload)	Binary packet: file handle, offset, length requested	0

SFTP DATA Packet

5	SFTP DATA Packet	Server sends requested file data chunk	~32
	Command	SSH_FXP_DATA (103)	1
	Arguments	NA
	Data (Payload)	Binary packet: file data bytes	0

SFTP WRITE Packet

6	SFTP WRITE Packet	Client sends chunk of file data to write at offset	~25
	Command	SSH_FXP_WRITE (6)	1
	Arguments	Handle, Offset , Data	~16 + 8 + variable
	Data (Payload)	Binary packet: file handle, offset, data bytes	0

SFTP CLOSE Packet

7	SFTP CLOSE Packet	Client requests to close the open file handle	~40
	Command	SSH_FXP_CLOSE (4)	1
	Arguments	Handle	~16
	Data (Payload)	Binary packet: file handle	0

SFTP STATUS Packet

8	SFTP STATUS Packet	Server responds with status of last operation	~40
	Command	SSH_FXP_STATUS (101)	4 + 4 + ~20
	Data (Payload)	Binary packet: status code and error message	0

SFTP Usecases

sno	Use cases	Description
1	Secure File Upload	Upload files securely from client to server using encryption.
2	Secure File Download	Download files from server to client with confidentiality and integrity.
3	Automated Backups	Schedule and automate secure backups of files to a remote server.
4	Remote File Access	Access and manage files on a remote server securely.
5	Data Synchronization	Sync files between systems securely using SFTP scripts or tools.
6	Secure Log Transfer	Transfer log files from production servers to monitoring systems.
7	Secure Configuration Deployment	Push configuration files to remote systems securely.
8	Secure Media Distribution	Distribute media files (e.g., videos, images) to clients or partners.
9	Secure Document Exchange	Exchange sensitive documents (e.g., contracts, reports) between organizations.
10	Secure Software Updates	Distribute software patches or updates to remote systems.
11	IoT Device Data Upload	Upload sensor data from IoT devices to a central server securely.
12	Secure Financial Data Transfer	Transfer financial records (e.g., invoices, statements) between systems.
13	Secure Healthcare Data Exchange	Exchange patient records or lab results in compliance with HIPAA.
14	Secure Academic Data Sharing	Share research data or student records between institutions.
15	Secure Legal Document Transfer	Transfer legal files between law firms and clients securely.
16	Secure Government File Exchange	Exchange sensitive government documents across departments.
17	Secure CRM Data Sync	Sync customer data between CRM systems and secure storage.
18	Secure ERP Integration	Transfer data between ERP systems and external partners.
19	Secure Cloud Storage Access	Access cloud-hosted files securely using SFTP.
20	Secure File Archiving	Archive files to a secure remote location for long-term storage.
21	Secure File Sharing with Vendors	Share files with third-party vendors securely.
22	Secure File Sharing with Clients	Provide clients with access to reports or deliverables securely.
23	Secure File Transfer in CI/CD	Transfer build artifacts or logs in DevOps pipelines.
24	Secure File Transfer in E-commerce	Exchange order data, inventory files, or invoices.
25	Secure File Transfer in Banking	Transfer transaction logs or audit files between branches.
26	Secure File Transfer in Education	Share course materials or student submissions securely.
27	Secure File Transfer in Media	Transfer large media files between production teams.
28	Secure File Transfer in Manufacturing	Exchange CAD files or production data securely.
29	Secure File Transfer in Logistics	Share shipment data or tracking files securely.
30	Secure File Transfer in Retail	Transfer sales reports or inventory data securely.
31	Secure File Transfer in Telecom	Exchange call logs or configuration files securely.
32	Secure File Transfer in Energy Sector	Transfer sensor data or reports from remote sites.
33	Secure File Transfer in Research	Share datasets or simulation results securely.
34	Secure File Transfer in NGOs	Exchange donor data or project files securely.
35	Secure File Transfer in HR	Transfer employee records or payroll data securely.
36	Secure File Transfer in Marketing	Share campaign assets or analytics reports securely.
37	Secure File Transfer in Insurance	Exchange claims data or policy documents securely.
38	Secure File Transfer in Real Estate	Share contracts, blueprints, or legal documents.
39	Secure File Transfer in Construction	Transfer project plans or site reports securely.
40	Secure File Transfer in Aviation	Share flight data or maintenance logs securely.
41	Secure File Transfer in Automotive	Exchange design files or diagnostics data securely.
42	Secure File Transfer in Pharmaceuticals	Transfer clinical trial data or lab results securely.
43	Secure File Transfer in Broadcasting	Distribute video/audio content securely to affiliates.
44	Secure File Transfer in Publishing	Share manuscripts or layout files securely.
45	Secure File Transfer in Cybersecurity	Transfer threat intelligence or logs securely.
46	Secure File Transfer in AI/ML	Share training datasets or model files securely.
47	Secure File Transfer in Blockchain	Exchange smart contracts or ledger data securely.
48	Secure File Transfer in Gaming	Distribute game patches or assets securely.
49	Secure File Transfer in Startups	Share business plans or investor decks securely.
50	Secure File Transfer in Remote Work	Enable secure file exchange for distributed teams.

SFTP Basic Features

Sno	Features	Description
1	Secure Data Transfer	Encrypts all data during transmission to prevent eavesdropping and tampering.
2	Authentication	Supports password, public key, and multi-factor authentication for secure access.
3	File Upload	Allows users to securely upload files to a remote server.
4	File Download	Enables secure downloading of files from a remote server.
5	Directory Listing	Provides the ability to list files and directories on the remote server.
6	File Rename	Supports renaming of files on the remote server.
7	File Deletion	Allows deletion of files from the remote server.
8	Directory Creation	Enables creation of directories on the remote server.
9	Directory Deletion	Allows deletion of directories from the remote server.
10	File Permissions Management	Supports changing file permissions (e.g., chmod) remotely.
11	Resume Interrupted Transfers	Can resume file transfers if interrupted, depending on client/server support.
12	File Integrity Verification	Ensures files are transferred without corruption using checksums or hashes.
13	Logging & Auditing	Tracks file transfer activities for security and compliance.
14	Cross-Platform Compatibility	Works across Windows, Linux, macOS, and other platforms.
15	Firewall-Friendly	Operates over a single port (typically port 22), simplifying firewall configuration.
16	Compression Support	Can compress files during transfer to save bandwidth (if enabled).
17	Symbolic Link Handling	Supports reading and managing symbolic links on remote systems.
18	Atomic Operations	Ensures file operations are completed fully or not at all, avoiding partial updates.
19	Session Management	Maintains secure sessions with timeout and reconnection support.
20	Integration with SSH	Built on SSH protocol, inheriting its security and authentication features.

SFTP Feature : Secure Data Transfer

Secure Data Transfer - Testcases

S.No	Test Case	Description	Expected Result
1	TC_SDT_001	Upload file over SFTP	File uploaded securely
2	TC_SDT_002	Download file over SFTP	File downloaded securely
3	TC_SDT_003	Verify encryption during upload	Data encrypted in transit
4	TC_SDT_004	Verify encryption during download	Data encrypted in transit
5	TC_SDT_005	Use SFTP with AES encryption	Data encrypted using AES
6	TC_SDT_006	Use SFTP with ChaCha20 encryption	Data encrypted using ChaCha20
7	TC_SDT_007	Use SFTP with default SSH encryption	Default cipher used securely
8	TC_SDT_008	Attempt file transfer without encryption	Error or transfer blocked
9	TC_SDT_009	Transfer file with integrity check	File verified after transfer
10	TC_SDT_010	Transfer file with checksum validation	Checksum matches source
11	TC_SDT_011	Transfer file with tampered data	Error: Integrity check failed
12	TC_SDT_012	Transfer file with MITM attack simulation	Connection rejected
13	TC_SDT_013	Transfer file with expired SSH key	Error: Authentication failed
14	TC_SDT_014	Transfer file with revoked SSH key	Error: Access denied
15	TC_SDT_015	Transfer file with valid SSH key	File transferred securely
16	TC_SDT_016	Transfer file with password authentication	File transferred securely
17	TC_SDT_017	Transfer file with MFA enabled	File transferred after MFA
18	TC_SDT_018	Transfer file with session timeout	Transfer aborted securely
19	TC_SDT_019	Transfer file with session resume	Transfer resumes securely
20	TC_SDT_020	Transfer file with firewall enabled	File transferred securely
21	TC_SDT_021	Transfer file with VPN enabled	File transferred securely
22	TC_SDT_022	Transfer file with proxy enabled	File transferred securely
23	TC_SDT_023	Transfer file with IP whitelisting	File transferred from allowed IP
24	TC_SDT_024	Transfer file with IP blacklisting	Transfer blocked
25	TC_SDT_025	Transfer file with port 22 open	File transferred securely
26	TC_SDT_026	Transfer file with port 22 blocked	Transfer fails
27	TC_SDT_027	Transfer file with compression enabled	File transferred securely and compressed
28	TC_SDT_028	Transfer file with compression disabled	File transferred securely
29	TC_SDT_029	Transfer file with large size	File transferred securely
30	TC_SDT_030	Transfer file with small size	File transferred securely
31	TC_SDT_031	Transfer file with high latency	File transferred securely with delay
32	TC_SDT_032	Transfer file with packet loss	File transferred securely with retries
33	TC_SDT_033	Transfer file with bandwidth throttling	File transferred securely at limited speed
34	TC_SDT_034	Transfer file with audit logging enabled	Transfer logged securely
35	TC_SDT_035	Transfer file with audit logging disabled	File transferred securely, no logs
36	TC_SDT_036	Transfer file with symbolic link	Target file transferred securely
37	TC_SDT_037	Transfer file with hidden attribute	File transferred securely
38	TC_SDT_038	Transfer file with special characters	File transferred securely
39	TC_SDT_039	Transfer file with unicode characters	File transferred securely
40	TC_SDT_040	Transfer file with long filename	File transferred securely
41	TC_SDT_041	Transfer file with invalid characters	Error: Invalid filename
42	TC_SDT_042	Transfer file with ACLs	ACLs preserved or logged
43	TC_SDT_043	Transfer file with extended attributes	Attributes preserved or ignored
44	TC_SDT_044	Transfer file with encryption audit	Encryption method logged
45	TC_SDT_045	Transfer file with integrity audit	Integrity check logged
46	TC_SDT_046	Transfer file with retry on failure	File transferred securely after retry
47	TC_SDT_047	Transfer file with concurrent sessions	File transferred securely in all sessions
48	TC_SDT_048	Transfer file with session isolation	File transferred securely in isolated session
49	TC_SDT_049	Transfer file with version control	File version tracked securely
50	TC_SDT_050	Transfer file with backup enabled	File backed up and transferred securely

SFTP Feature : Authentication

Authentication, - Testcases

S.No	Test Case	Description	Expected Result
1	TC_AUTH_001	Login with valid username and password	Authentication successful
2	TC_AUTH_002	Login with invalid username	Authentication failed
3	TC_AUTH_003	Login with invalid password	Authentication failed
4	TC_AUTH_004	Login with empty username	Authentication failed
5	TC_AUTH_005	Login with empty password	Authentication failed
6	TC_AUTH_006	Login with both fields empty	Authentication failed
7	TC_AUTH_007	Login with valid SSH key	Authentication successful
8	TC_AUTH_008	Login with invalid SSH key	Authentication failed
9	TC_AUTH_009	Login with expired SSH key	Authentication failed
10	TC_AUTH_010	Login with revoked SSH key	Authentication failed
11	TC_AUTH_011	Login with passphrase-protected SSH key	Prompt for passphrase and login successful
12	TC_AUTH_012	Login with incorrect SSH key passphrase	Authentication failed
13	TC_AUTH_013	Login with valid certificate	Authentication successful
14	TC_AUTH_014	Login with expired certificate	Authentication failed
15	TC_AUTH_015	Login with revoked certificate	Authentication failed
16	TC_AUTH_016	Login with MFA enabled	Prompt for second factor
17	TC_AUTH_017	Login with valid MFA code	Authentication successful
18	TC_AUTH_018	Login with invalid MFA code	Authentication failed
19	TC_AUTH_019	Login with expired MFA code	Authentication failed
20	TC_AUTH_020	Login with IP whitelisted	Authentication successful
21	TC_AUTH_021	Login with IP blacklisted	Authentication denied
22	TC_AUTH_022	Login with MAC address filtering enabled	Authentication based on MAC
23	TC_AUTH_023	Login with valid LDAP credentials	Authentication successful
24	TC_AUTH_024	Login with invalid LDAP credentials	Authentication failed
25	TC_AUTH_025	Login with Kerberos ticket	Authentication successful
26	TC_AUTH_026	Login with expired Kerberos ticket	Authentication failed
27	TC_AUTH_027	Login with OAuth token	Authentication successful
28	TC_AUTH_028	Login with expired OAuth token	Authentication failed
29	TC_AUTH_029	Login with tampered OAuth token	Authentication failed
30	TC_AUTH_030	Login with missing token	Authentication failed
31	TC_AUTH_031	Login with valid API key	Authentication successful
32	TC_AUTH_032	Login with invalid API key	Authentication failed
33	TC_AUTH_033	Login with revoked API key	Authentication failed
34	TC_AUTH_034	Login with expired session	Authentication failed
35	TC_AUTH_035	Login with concurrent sessions limit exceeded	Authentication denied
36	TC_AUTH_036	Login with brute-force attempts	Account locked or IP blocked
37	TC_AUTH_037	Login after account lockout	Authentication denied
38	TC_AUTH_038	Login after cooldown period	Authentication successful
39	TC_AUTH_039	Login with SQL injection in username	Authentication failed, input sanitized
40	TC_AUTH_040	Login with script injection in password	Authentication failed, input sanitized
41	TC_AUTH_041	Login with special characters in username	Authentication successful or sanitized
42	TC_AUTH_042	Login with long username (>255 chars)	Authentication failed
43	TC_AUTH_043	Login with long password (>255 chars)	Authentication failed
44	TC_AUTH_044	Login with UTF-8 encoded credentials	Authentication successful
45	TC_AUTH_045	Login with credentials over encrypted channel	Authentication successful
46	TC_AUTH_046	Login with credentials over unencrypted channel	Warning or authentication blocked
47	TC_AUTH_047	Login with credentials stored in secure vault	Authentication successful
48	TC_AUTH_048	Login with credentials stored in plaintext	Security warning
49	TC_AUTH_049	Login with audit logging enabled	Authentication event logged
50	TC_AUTH_050	Login with audit logging disabled	Authentication not logged

SFTP Feature : File Upload

File Upload - Testcases

S.No	Test Case	Description	Expected Result
1	TC_FU_001	Upload a valid file	File uploaded successfully
2	TC_FU_002	Upload a file with special characters in name	File uploaded successfully
3	TC_FU_003	Upload a file with spaces in name	File uploaded successfully
4	TC_FU_004	Upload a file with unicode characters	File uploaded successfully
5	TC_FU_005	Upload a file with long filename (>255 chars)	Error or file uploaded based on server
6	TC_FU_006	Upload a file with no extension	File uploaded successfully
7	TC_FU_007	Upload a file with multiple extensions	File uploaded successfully
8	TC_FU_008	Upload a file with hidden attribute	File uploaded successfully
9	TC_FU_009	Upload a file with read-only permissions	Error or file uploaded based on server config
10	TC_FU_010	Upload a file with write-only permissions	File uploaded successfully
11	TC_FU_011	Upload a file with execute-only permissions	File uploaded successfully
12	TC_FU_012	Upload a binary file	File uploaded successfully
13	TC_FU_013	Upload a text file	File uploaded successfully
14	TC_FU_014	Upload a compressed file (.zip, .tar)	File uploaded successfully
15	TC_FU_015	Upload an encrypted file	File uploaded securely
16	TC_FU_016	Upload a file with checksum verification	File uploaded and verified
17	TC_FU_017	Upload a file with integrity check	File uploaded and verified
18	TC_FU_018	Upload a file with audit logging enabled	Upload logged successfully
19	TC_FU_019	Upload a file with audit logging disabled	File uploaded, no log entry
20	TC_FU_020	Upload a file with retry on failure	File uploaded after retry
21	TC_FU_021	Upload a file with timeout	Error: Upload timed out
22	TC_FU_022	Upload a file with slow network	File uploaded with delay
23	TC_FU_023	Upload a file with packet loss	File uploaded with retransmission
24	TC_FU_024	Upload a file with session timeout	Error: Session expired
25	TC_FU_025	Upload a file after reconnecting session	File uploaded successfully
26	TC_FU_026	Upload a file with invalid session token	Error: Unauthorized
27	TC_FU_027	Upload a file with expired credentials	Error: Authentication failed
28	TC_FU_028	Upload a file with MFA enabled	File uploaded after MFA verification
29	TC_FU_029	Upload a file with symbolic link	Target file uploaded or link ignored
30	TC_FU_030	Upload a file to a restricted directory	Error: Access denied
31	TC_FU_031	Upload a file to a read-only directory	Error: Cannot write to directory
32	TC_FU_032	Upload a file to a hidden directory	File uploaded successfully
33	TC_FU_033	Upload a file to a non-existent directory	Error: Directory not found
34	TC_FU_034	Upload a file using GUI client	File uploaded successfully
35	TC_FU_035	Upload a file using CLI client	File uploaded successfully
36	TC_FU_036	Upload a file using automated script	File uploaded successfully
37	TC_FU_037	Upload a file using batch operation	File uploaded successfully
38	TC_FU_038	Upload multiple files in one command	All files uploaded successfully
39	TC_FU_039	Upload a file with confirmation prompt	File uploaded after confirmation
40	TC_FU_040	Cancel file upload after prompt	File not uploaded
41	TC_FU_041	Upload a file with bandwidth throttling	File uploaded at limited speed
42	TC_FU_042	Upload a file with encryption enabled	File uploaded securely
43	TC_FU_043	Upload a file with compression enabled	File uploaded with reduced size
44	TC_FU_044	Upload a file with version control	New version created
45	TC_FU_045	Upload a file with backup enabled	File backed up and uploaded
46	TC_FU_046	Upload a file with ACLs	ACLs preserved or applied
47	TC_FU_047	Upload a file with extended attributes	Attributes preserved or ignored
48	TC_FU_048	Upload a file with integrity audit	Integrity check logged
49	TC_FU_049	Upload a file with logging disabled	File uploaded, no logs
50	TC_FU_050	Upload a file with full audit compliance	File uploaded and fully logged

SFTP Feature : File Download

File Download - Testcases

S.No	Test Case	Description	Expected Result
1	TC_FD_001	Download a valid file	File downloaded successfully
2	TC_FD_002	Download a file with special characters in name	File downloaded successfully
3	TC_FD_003	Download a file with spaces in name	File downloaded successfully
4	TC_FD_004	Download a file with unicode characters	File downloaded successfully
5	TC_FD_005	Download a file with long filename (>255 chars)	Error or file downloaded based on system
6	TC_FD_006	Download a file with no extension	File downloaded successfully
7	TC_FD_007	Download a file with multiple extensions	File downloaded successfully
8	TC_FD_008	Download a hidden file	File downloaded successfully
9	TC_FD_009	Download a read-only file	File downloaded successfully
10	TC_FD_010	Download a write-only file	Error: Permission denied
11	TC_FD_011	Download an executable file	File downloaded successfully
12	TC_FD_012	Download a binary file	File downloaded successfully
13	TC_FD_013	Download a text file	File downloaded successfully
14	TC_FD_014	Download a compressed file (.zip, .tar)	File downloaded successfully
15	TC_FD_015	Download an encrypted file	File downloaded securely
16	TC_FD_016	Download a file with checksum verification	File verified after download
17	TC_FD_017	Download a file with integrity check	File verified after download
18	TC_FD_018	Download a file with audit logging enabled	Download logged successfully
19	TC_FD_019	Download a file with audit logging disabled	File downloaded, no log entry
20	TC_FD_020	Download a file with retry on failure	File downloaded after retry
21	TC_FD_021	Download a file with timeout	Error: Download timed out
22	TC_FD_022	Download a file with slow network	File downloaded with delay
23	TC_FD_023	Download a file with packet loss	File downloaded with retransmission
24	TC_FD_024	Download a file with session timeout	Error: Session expired
25	TC_FD_025	Download a file after reconnecting session	File downloaded successfully
26	TC_FD_026	Download a file with invalid session token	Error: Unauthorized
27	TC_FD_027	Download a file with expired credentials	Error: Authentication failed
28	TC_FD_028	Download a file with MFA enabled	File downloaded after MFA verification
29	TC_FD_029	Download a symbolic link	Target file downloaded or link handled
30	TC_FD_030	Download a file from a restricted directory	Error: Access denied
31	TC_FD_031	Download a file from a read-only directory	File downloaded successfully
32	TC_FD_032	Download a file from a hidden directory	File downloaded successfully
33	TC_FD_033	Download a file from a non-existent directory	Error: Directory not found
34	TC_FD_034	Download a file using GUI client	File downloaded successfully
35	TC_FD_035	Download a file using CLI client	File downloaded successfully
36	TC_FD_036	Download a file using automated script	File downloaded successfully
37	TC_FD_037	Download a file using batch operation	File downloaded successfully
38	TC_FD_038	Download multiple files in one command	All files downloaded successfully
39	TC_FD_039	Download a file with confirmation prompt	File downloaded after confirmation
40	TC_FD_040	Cancel file download after prompt	File not downloaded
41	TC_FD_041	Download a file with bandwidth throttling	File downloaded at limited speed
42	TC_FD_042	Download a file with encryption enabled	File downloaded securely
43	TC_FD_043	Download a file with compression enabled	File downloaded with reduced size
44	TC_FD_044	Download a file with version control	Specific version downloaded
45	TC_FD_045	Download a file with backup enabled	File downloaded and backup preserved
46	TC_FD_046	Download a file with ACLs	ACLs preserved or applied
47	TC_FD_047	Download a file with extended attributes	Attributes preserved or ignored
48	TC_FD_048	Download a file with integrity audit	Integrity check logged
49	TC_FD_049	Download a file with logging disabled	File downloaded, no logs
50	TC_FD_050	Download a file with full audit compliance	File downloaded and fully logged

SFTP Feature : Directory Listing

Directory Listing - Testcases

S.No	Test Case	Description	Expected Result
1	TC_FD_001	Download a valid file	File downloaded successfully
2	TC_FD_002	Download a file with special characters in name	File downloaded successfully
3	TC_FD_003	Download a file with spaces in name	File downloaded successfully
4	TC_FD_004	Download a file with unicode characters	File downloaded successfully
5	TC_FD_005	Download a file with long filename (>255 chars)	Error or file downloaded based on system
6	TC_FD_006	Download a file with no extension	File downloaded successfully
7	TC_FD_007	Download a file with multiple extensions	File downloaded successfully
8	TC_FD_008	Download a hidden file	File downloaded successfully
9	TC_FD_009	Download a read-only file	File downloaded successfully
10	TC_FD_010	Download a write-only file	Error: Permission denied
11	TC_FD_011	Download an executable file	File downloaded successfully
12	TC_FD_012	Download a binary file	File downloaded successfully
13	TC_FD_013	Download a text file	File downloaded successfully
14	TC_FD_014	Download a compressed file (.zip, .tar)	File downloaded successfully
15	TC_FD_015	Download an encrypted file	File downloaded securely
16	TC_FD_016	Download a file with checksum verification	File verified after download
17	TC_FD_017	Download a file with integrity check	File verified after download
18	TC_FD_018	Download a file with audit logging enabled	Download logged successfully
19	TC_FD_019	Download a file with audit logging disabled	File downloaded, no log entry
20	TC_FD_020	Download a file with retry on failure	File downloaded after retry
21	TC_FD_021	Download a file with timeout	Error: Download timed out
22	TC_FD_022	Download a file with slow network	File downloaded with delay
23	TC_FD_023	Download a file with packet loss	File downloaded with retransmission
24	TC_FD_024	Download a file with session timeout	Error: Session expired
25	TC_FD_025	Download a file after reconnecting session	File downloaded successfully
26	TC_FD_026	Download a file with invalid session token	Error: Unauthorized
27	TC_FD_027	Download a file with expired credentials	Error: Authentication failed
28	TC_FD_028	Download a file with MFA enabled	File downloaded after MFA verification
29	TC_FD_029	Download a symbolic link	Target file downloaded or link handled
30	TC_FD_030	Download a file from a restricted directory	Error: Access denied
31	TC_FD_031	Download a file from a read-only directory	File downloaded successfully
32	TC_FD_032	Download a file from a hidden directory	File downloaded successfully
33	TC_FD_033	Download a file from a non-existent directory	Error: Directory not found
34	TC_FD_034	Download a file using GUI client	File downloaded successfully
35	TC_FD_035	Download a file using CLI client	File downloaded successfully
36	TC_FD_036	Download a file using automated script	File downloaded successfully
37	TC_FD_037	Download a file using batch operation	File downloaded successfully
38	TC_FD_038	Download multiple files in one command	All files downloaded successfully
39	TC_FD_039	Download a file with confirmation prompt	File downloaded after confirmation
40	TC_FD_040	Cancel file download after prompt	File not downloaded
41	TC_FD_041	Download a file with bandwidth throttling	File downloaded at limited speed
42	TC_FD_042	Download a file with encryption enabled	File downloaded securely
43	TC_FD_043	Download a file with compression enabled	File downloaded with reduced size
44	TC_FD_044	Download a file with version control	Specific version downloaded
45	TC_FD_045	Download a file with backup enabled	File downloaded and backup preserved
46	TC_FD_046	Download a file with ACLs	ACLs preserved or applied
47	TC_FD_047	Download a file with extended attributes	Attributes preserved or ignored
48	TC_FD_048	Download a file with integrity audit	Integrity check logged
49	TC_FD_049	Download a file with logging disabled	File downloaded, no logs
50	TC_FD_050	Download a file with full audit compliance	File downloaded and fully logged

SFTP Feature : File Rename

File Rename - Testcases

S.No	Test Case	Description	Expected Result
1	Rename_ValidFile	Rename a file with a valid new name	File is renamed successfully
2	Rename_NonExistentFile	Attempt to rename a file that does not exist	Error: File not found
3	Rename_ToExistingFileName	Rename a file to a name that already exists	Error: File already exists
4	Rename_EmptyNewName	Rename a file to an empty string	Error: Invalid file name
5	Rename_SpecialCharacters	Rename a file using special characters	File is renamed if characters are allowed
6	Rename_LongFileName	Rename a file with a very long name	File is renamed or error if name exceeds limit
7	Rename_UnicodeCharacters	Rename a file using Unicode characters	File is renamed successfully
8	Rename_WithSpaces	Rename a file with spaces in the new name	File is renamed successfully
9	Rename_UpperToLowerCase	Rename a file from uppercase to lowercase	File is renamed successfully
10	Rename_LowerToUpperCase	Rename a file from lowercase to uppercase	File is renamed successfully
11	Rename_FileInUse	Rename a file currently in use	Error or rename depending on server behavior
12	Rename_ReadOnlyFile	Rename a read-only file	File is renamed if permissions allow
13	Rename_WithoutPermission	Rename a file without sufficient permissions	Error: Permission denied
14	Rename_DirectoryAsFile	Attempt to rename a directory as a file	Error: Invalid operation
15	Rename_FileAsDirectory	Attempt to rename a file as a directory	Error: Invalid operation
16	Rename_SameName	Rename a file to the same name	No change, operation succeeds or ignored
17	Rename_CaseSensitive	Rename a file with only case difference	File is renamed if FS is case-sensitive
18	Rename_ConcurrentAccess	Rename a file while another client accesses it	Rename succeeds or fails based on lock
19	Rename_ValidRelativePath	Rename using relative path	File is renamed successfully
20	Rename_ValidAbsolutePath	Rename using absolute path	File is renamed successfully
21	Rename_InvalidPath	Rename using an invalid path	Error: Invalid path
22	Rename_Symlink	Rename a symbolic link	Symlink is renamed, target unchanged
23	Rename_HiddenFile	Rename a hidden file (e.g., .file)	File is renamed successfully
24	Rename_ToHiddenFile	Rename a file to a hidden file	File is renamed successfully
25	Rename_EmptyDirectory	Rename an empty directory	Directory is renamed successfully
26	Rename_NonEmptyDirectory	Rename a non-empty directory	Directory is renamed successfully
27	Rename_Recursive	Rename a directory recursively	All contents remain intact
28	Rename_WithExtensionChange	Rename a file and change its extension	File is renamed successfully
29	Rename_WithoutExtension	Rename a file and remove its extension	File is renamed successfully
30	Rename_WithDotPrefix	Rename a file to start with a dot	File becomes hidden (on Unix)
31	Rename_InterruptedConnection	Rename during network interruption	Rename fails or is retried
32	Rename_LargeFile	Rename a large file (GBs)	File is renamed successfully
33	Rename_ZeroByteFile	Rename a 0-byte file	File is renamed successfully
34	Rename_UsingScripting	Rename via automated script	File is renamed successfully
35	Rename_UsingGUIClient	Rename using a GUI SFTP client	File is renamed successfully
36	Rename_UsingCLI	Rename using command-line SFTP	File is renamed successfully
37	Rename_UsingAPI	Rename using SFTP API	File is renamed successfully
38	Rename_WhileUploading	Rename a file being uploaded	Rename fails or is queued
39	Rename_WhileDownloading	Rename a file being downloaded	Rename fails or is queued
40	Rename_OverNetworkShare	Rename a file on a mounted network share	File is renamed successfully
41	Rename_OverVPN	Rename a file over VPN connection	File is renamed successfully
42	Rename_OverSlowConnection	Rename over a slow connection	File is renamed, may be delayed
43	Rename_WithAuditLogging	Rename with audit logging enabled	Rename is logged
44	Rename_WithVersionControl	Rename in a version-controlled directory	Rename is tracked
45	Rename_WithQuotaLimit	Rename when user is near quota limit	File is renamed if no space is used
46	Rename_EncryptedFile	Rename an encrypted file	File is renamed successfully
47	Rename_CompressedFile	Rename a compressed file	File is renamed successfully
48	Rename_UsingWildcard	Attempt to rename using wildcards	Error: Wildcards not supported
49	Rename_MultipleFiles	Rename multiple files in batch	All files renamed or partial success
50	Rename_WithLoggingDisabled	Rename with logging disabled	File is renamed, no logs generated

SFTP Feature : File Deletion

File Deletion - Testcases

S.No	Test Case	Description	Expected Result
1	TC_FD_001	Delete an existing file	File deleted successfully
2	TC_FD_002	Delete a non-existent file	Error: File not found
3	TC_FD_003	Delete a file without permission	Error: Permission denied
4	TC_FD_004	Delete a file with read-only permissions	File deleted if user has delete rights
5	TC_FD_005	Delete a file in a restricted directory	Error: Access denied
6	TC_FD_006	Delete a file with special characters in name	File deleted successfully
7	TC_FD_007	Delete a file with spaces in name	File deleted successfully
8	TC_FD_008	Delete a file with unicode characters	File deleted successfully
9	TC_FD_009	Delete a file with long filename (>255 chars)	Error or file deleted based on server
10	TC_FD_010	Delete a file with symbolic link	Target file deleted or link removed
11	TC_FD_011	Delete a symbolic link only	Link deleted, target remains
12	TC_FD_012	Delete a file in nested directory	File deleted successfully
13	TC_FD_013	Delete a file using relative path	File deleted successfully
14	TC_FD_014	Delete a file using absolute path	File deleted successfully
15	TC_FD_015	Delete a file while it is being downloaded	File deleted or locked
16	TC_FD_016	Delete a file while it is being uploaded	File deletion fails or waits
17	TC_FD_017	Delete a file with invalid characters	Error: Invalid filename
18	TC_FD_018	Delete a file with null byte in name	Error: Invalid filename
19	TC_FD_019	Delete a file with trailing slash	Error: Not a directory
20	TC_FD_020	Delete a file with leading dot (hidden file)	File deleted successfully
21	TC_FD_021	Delete a file with no extension	File deleted successfully
22	TC_FD_022	Delete a file with multiple extensions	File deleted successfully
23	TC_FD_023	Delete a file with uppercase extension	File deleted successfully
24	TC_FD_024	Delete a file with mixed case name	File deleted successfully
25	TC_FD_025	Delete a file from root directory	Error or file deleted based on permissions
26	TC_FD_026	Delete a file from mounted volume	File deleted successfully
27	TC_FD_027	Delete a file from network share	File deleted successfully
28	TC_FD_028	Delete a file from read-only filesystem	Error: Read-only file system
29	TC_FD_029	Delete a file with concurrent access	File deleted or locked
30	TC_FD_030	Delete a file with audit logging enabled	File deleted and logged
31	TC_FD_031	Delete a file with audit logging disabled	File deleted, no log entry
32	TC_FD_032	Delete a file using SFTP GUI client	File deleted successfully
33	TC_FD_033	Delete a file using SFTP CLI	File deleted successfully
34	TC_FD_034	Delete a file using automated script	File deleted successfully
35	TC_FD_035	Delete a file using batch operation	File deleted successfully
36	TC_FD_036	Delete multiple files in one command	All files deleted successfully
37	TC_FD_037	Delete a file with confirmation prompt	File deleted after confirmation
38	TC_FD_038	Cancel file deletion after prompt	File not deleted
39	TC_FD_039	Delete a file with retry on failure	File deleted after retry
40	TC_FD_040	Delete a file with timeout	Error: Operation timed out
41	TC_FD_041	Delete a file with slow network	File deleted with delay
42	TC_FD_042	Delete a file with packet loss	File deleted or retry triggered
43	TC_FD_043	Delete a file with encryption enabled	File deleted securely
44	TC_FD_044	Delete a file with compression enabled	File deleted successfully
45	TC_FD_045	Delete a file with session timeout	Error: Session expired
46	TC_FD_046	Delete a file after reconnecting session	File deleted successfully
47	TC_FD_047	Delete a file with invalid session token	Error: Unauthorized
48	TC_FD_048	Delete a file with expired credentials	Error: Authentication failed
49	TC_FD_049	Delete a file with MFA enabled	File deleted after MFA verification
50	TC_FD_050	Delete a file with audit trail export	File deleted and audit exported

SFTP Feature : Directory Creation

Directory Creation - Testcases

S.No	Test Case	Description	Expected Result
1	TC_DC_001	Create a new directory with valid name	Directory created successfully
2	TC_DC_002	Create a directory that already exists	Error: Directory already exists
3	TC_DC_003	Create a directory with special characters	Directory created or sanitized
4	TC_DC_004	Create a directory with spaces in name	Directory created successfully
5	TC_DC_005	Create a directory with unicode characters	Directory created successfully
6	TC_DC_006	Create a directory with long name (>255 chars)	Error or directory created based on server
7	TC_DC_007	Create a directory with trailing slash	Directory created successfully
8	TC_DC_008	Create a directory with leading slash	Directory created at root or error
9	TC_DC_009	Create a nested directory structure	All directories created recursively
10	TC_DC_010	Create a directory using relative path	Directory created successfully
11	TC_DC_011	Create a directory using absolute path	Directory created successfully
12	TC_DC_012	Create a directory in a restricted path	Error: Permission denied
13	TC_DC_013	Create a directory without write permission	Error: Permission denied
14	TC_DC_014	Create a directory with read-only permissions	Error: Cannot write to location
15	TC_DC_015	Create a directory with invalid characters	Error: Invalid directory name
16	TC_DC_016	Create a directory with null byte in name	Error: Invalid directory name
17	TC_DC_017	Create a directory with dot prefix (hidden)	Directory created successfully
18	TC_DC_018	Create a directory with numeric name	Directory created successfully
19	TC_DC_019	Create a directory with mixed case name	Directory created successfully
20	TC_DC_020	Create a directory with no name	Error: Invalid directory name
21	TC_DC_021	Create a directory with only spaces	Error: Invalid directory name
22	TC_DC_022	Create a directory with symbolic link in path	Directory created at target location
23	TC_DC_023	Create a directory with path traversal attempt	Error: Access denied
24	TC_DC_024	Create a directory in root directory	Directory created or error based on permissions
25	TC_DC_025	Create a directory in mounted volume	Directory created successfully
26	TC_DC_026	Create a directory in network share	Directory created successfully
27	TC_DC_027	Create a directory in read-only filesystem	Error: Read-only file system
28	TC_DC_028	Create a directory with concurrent access	Directory created or conflict handled
29	TC_DC_029	Create a directory with audit logging enabled	Directory created and logged
30	TC_DC_030	Create a directory with audit logging disabled	Directory created, no log entry
31	TC_DC_031	Create a directory using SFTP GUI client	Directory created successfully
32	TC_DC_032	Create a directory using SFTP CLI	Directory created successfully
33	TC_DC_033	Create a directory using automated script	Directory created successfully
34	TC_DC_034	Create a directory using batch operation	Directory created successfully
35	TC_DC_035	Create multiple directories in one command	All directories created successfully
36	TC_DC_036	Create a directory with confirmation prompt	Directory created after confirmation
37	TC_DC_037	Cancel directory creation after prompt	Directory not created
38	TC_DC_038	Retry directory creation after failure	Directory created successfully
39	TC_DC_039	Create a directory with timeout	Error: Operation timed out
40	TC_DC_040	Create a directory with slow network	Directory created with delay
41	TC_DC_041	Create a directory with packet loss	Directory created or retry triggered
42	TC_DC_042	Create a directory with encryption enabled	Directory created securely
43	TC_DC_043	Create a directory with compression enabled	Directory created successfully
44	TC_DC_044	Create a directory with session timeout	Error: Session expired
45	TC_DC_045	Create a directory after reconnecting session	Directory created successfully
46	TC_DC_046	Create a directory with invalid session token	Error: Unauthorized
47	TC_DC_047	Create a directory with expired credentials	Error: Authentication failed
48	TC_DC_048	Create a directory with MFA enabled	Directory created after MFA verification
49	TC_DC_049	Create a directory with audit trail export	Directory created and audit exported
50	TC_DC_050	Create a directory with symbolic link loop	Error: Loop detected

SFTP Feature : Directory Deletion

Directory Deletion - Testcases

S.No	Test Case	Description	Expected Result
1	TC_DD_001	Delete an empty directory	Directory deleted successfully
2	TC_DD_002	Delete a non-empty directory	Error or recursive deletion based on config
3	TC_DD_003	Delete a non-existent directory	Error: Directory not found
4	TC_DD_004	Delete a directory without permission	Error: Permission denied
5	TC_DD_005	Delete a directory with read-only permissions	Error: Cannot delete directory
6	TC_DD_006	Delete a directory with special characters	Directory deleted or error
7	TC_DD_007	Delete a directory with spaces in name	Directory deleted successfully
8	TC_DD_008	Delete a directory with unicode characters	Directory deleted successfully
9	TC_DD_009	Delete a directory with long name (>255 chars)	Error or directory deleted
10	TC_DD_010	Delete a symbolic link to a directory	Link deleted, target remains
11	TC_DD_011	Delete a directory using relative path	Directory deleted successfully
12	TC_DD_012	Delete a directory using absolute path	Directory deleted successfully
13	TC_DD_013	Delete a directory with trailing slash	Directory deleted successfully
14	TC_DD_014	Delete a directory with leading slash	Directory deleted successfully
15	TC_DD_015	Delete a hidden directory (starts with dot)	Directory deleted successfully
16	TC_DD_016	Delete a directory with numeric name	Directory deleted successfully
17	TC_DD_017	Delete a directory with mixed case name	Directory deleted successfully
18	TC_DD_018	Delete a directory with no name	Error: Invalid directory name
19	TC_DD_019	Delete a directory with only spaces	Error: Invalid directory name
20	TC_DD_020	Delete a directory with invalid characters	Error: Invalid directory name
21	TC_DD_021	Delete a directory with null byte in name	Error: Invalid directory name
22	TC_DD_022	Delete a directory with symbolic link in path	Target directory deleted
23	TC_DD_023	Delete a directory with path traversal attempt	Error: Access denied
24	TC_DD_024	Delete a directory in root directory	Directory deleted or error
25	TC_DD_025	Delete a directory in mounted volume	Directory deleted successfully
26	TC_DD_026	Delete a directory in network share	Directory deleted successfully
27	TC_DD_027	Delete a directory in read-only filesystem	Error: Read-only file system
28	TC_DD_028	Delete a directory with concurrent access	Directory deleted or locked
29	TC_DD_029	Delete a directory with audit logging enabled	Directory deleted and logged
30	TC_DD_030	Delete a directory with audit logging disabled	Directory deleted, no log entry
31	TC_DD_031	Delete a directory using SFTP GUI client	Directory deleted successfully
32	TC_DD_032	Delete a directory using SFTP CLI	Directory deleted successfully
33	TC_DD_033	Delete a directory using automated script	Directory deleted successfully
34	TC_DD_034	Delete a directory using batch operation	Directory deleted successfully
35	TC_DD_035	Delete multiple directories in one command	All directories deleted successfully
36	TC_DD_036	Delete a directory with confirmation prompt	Directory deleted after confirmation
37	TC_DD_037	Cancel directory deletion after prompt	Directory not deleted
38	TC_DD_038	Retry directory deletion after failure	Directory deleted successfully
39	TC_DD_039	Delete a directory with timeout	Error: Operation timed out
40	TC_DD_040	Delete a directory with slow network	Directory deleted with delay
41	TC_DD_041	Delete a directory with packet loss	Directory deleted or retry triggered
42	TC_DD_042	Delete a directory with encryption enabled	Directory deleted securely
43	TC_DD_043	Delete a directory with compression enabled	Directory deleted successfully
44	TC_DD_044	Delete a directory with session timeout	Error: Session expired
45	TC_DD_045	Delete a directory after reconnecting session	Directory deleted successfully
46	TC_DD_046	Delete a directory with invalid session token	Error: Unauthorized
47	TC_DD_047	Delete a directory with expired credentials	Error: Authentication failed
48	TC_DD_048	Delete a directory with MFA enabled	Directory deleted after MFA verification
49	TC_DD_049	Delete a directory with audit trail export	Directory deleted and audit exported
50	TC_DD_050	Delete a directory with symbolic link loop	Error: Loop detected

SFTP Feature : File Permissions Management

File Permissions Management - Testcases

S.No	Test Case	Description	Expected Result
1	TC_FPM_001	Change file permission to read-only	File becomes read-only
2	TC_FPM_002	Change file permission to write-only	File becomes write-only
3	TC_FPM_003	Change file permission to execute-only	File becomes executable
4	TC_FPM_004	Grant read, write, execute to owner	Owner has full access
5	TC_FPM_005	Grant read-only to group	Group can only read the file
6	TC_FPM_006	Grant no permissions to others	Others cannot access the file
7	TC_FPM_007	Remove execute permission from file	File is no longer executable
8	TC_FPM_008	Remove write permission from file	File becomes read-only
9	TC_FPM_009	Remove read permission from file	File cannot be read
10	TC_FPM_010	Set permissions using numeric mode (e.g., 755)	Permissions set correctly
11	TC_FPM_011	Set permissions using symbolic mode (e.g., u+x)	Permissions updated correctly
12	TC_FPM_012	Attempt to change permissions without rights	Error: Permission denied
13	TC_FPM_013	Change permissions on a non-existent file	Error: File not found
14	TC_FPM_014	Change permissions on a directory	Directory permissions updated
15	TC_FPM_015	Change permissions on a symbolic link	Link or target permissions updated
16	TC_FPM_016	Change permissions on a hidden file	Permissions updated successfully
17	TC_FPM_017	Change permissions on a file with special characters	Permissions updated successfully
18	TC_FPM_018	Change permissions on a file with unicode name	Permissions updated successfully
19	TC_FPM_019	Change permissions on a file with long name	Permissions updated successfully
20	TC_FPM_020	Change permissions using SFTP GUI client	Permissions updated successfully
21	TC_FPM_021	Change permissions using SFTP CLI	Permissions updated successfully
22	TC_FPM_022	Change permissions using automated script	Permissions updated successfully
23	TC_FPM_023	Change permissions on multiple files	All permissions updated
24	TC_FPM_024	Change permissions recursively in directory	All files and subfolders updated
25	TC_FPM_025	Change permissions with audit logging enabled	Change logged successfully
26	TC_FPM_026	Change permissions with audit logging disabled	Change not logged
27	TC_FPM_027	Change permissions with invalid mode	Error: Invalid permission mode
28	TC_FPM_028	Change permissions with null input	Error: Invalid input
29	TC_FPM_029	Change permissions with timeout	Error: Operation timed out
30	TC_FPM_030	Change permissions with slow network	Permissions updated with delay
31	TC_FPM_031	Change permissions with packet loss	Retry or error triggered
32	TC_FPM_032	Change permissions with encryption enabled	Permissions updated securely
33	TC_FPM_033	Change permissions with compression enabled	Permissions updated successfully
34	TC_FPM_034	Change permissions after session timeout	Error: Session expired
35	TC_FPM_035	Change permissions after reconnecting session	Permissions updated successfully
36	TC_FPM_036	Change permissions with invalid session token	Error: Unauthorized
37	TC_FPM_037	Change permissions with expired credentials	Error: Authentication failed
38	TC_FPM_038	Change permissions with MFA enabled	Permissions updated after MFA
39	TC_FPM_039	Change permissions on read-only file system	Error: Read-only file system
40	TC_FPM_040	Change permissions on network-mounted file	Permissions updated successfully
41	TC_FPM_041	Change permissions on file in restricted directory	Error: Access denied
42	TC_FPM_042	Change permissions on file in root directory	Permissions updated or denied
43	TC_FPM_043	Change permissions on file with concurrent access	Permissions updated or locked
44	TC_FPM_044	Change permissions on file with symbolic link loop	Error: Loop detected
45	TC_FPM_045	Change permissions on file with ACLs	ACLs updated or preserved
46	TC_FPM_046	Change permissions on file with extended attributes	Attributes preserved or updated
47	TC_FPM_047	Change permissions on file with audit trail export	Permissions updated and audit exported
48	TC_FPM_048	Change permissions on file with backup enabled	Permissions updated and backup triggered
49	TC_FPM_049	Change permissions on file with version control	Permissions updated and version logged
50	TC_FPM_050	Change permissions on file with integrity check	Permissions updated and verified

SFTP Feature : Resume Interrupted Transfers

Resume Interrupted Transfers - Testcases

S.No	Test Case	Description	Expected Result
1	TC_RIT_001	Resume upload after network disconnection	Upload resumes from last byte
2	TC_RIT_002	Resume download after network disconnection	Download resumes from last byte
3	TC_RIT_003	Resume upload after client reboot	Upload resumes if session info is retained
4	TC_RIT_004	Resume download after client reboot	Download resumes if session info is retained
5	TC_RIT_005	Resume upload after server reboot	Upload resumes if server supports it
6	TC_RIT_006	Resume download after server reboot	Download resumes if server supports it
7	TC_RIT_007	Resume upload after timeout	Upload resumes from last checkpoint
8	TC_RIT_008	Resume download after timeout	Download resumes from last checkpoint
9	TC_RIT_009	Resume upload with partial file present	Upload resumes from file size offset
10	TC_RIT_010	Resume download with partial file present	Download resumes from file size offset
11	TC_RIT_011	Resume upload with file mismatch	Error or overwrite prompt
12	TC_RIT_012	Resume download with file mismatch	Error or overwrite prompt
13	TC_RIT_013	Resume upload with file locked	Error: File in use
14	TC_RIT_014	Resume download with file locked	Error: File in use
15	TC_RIT_015	Resume upload with permission change	Error: Permission denied
16	TC_RIT_016	Resume download with permission change	Error: Permission denied
17	TC_RIT_017	Resume upload with file renamed	Error or resume fails
18	TC_RIT_018	Resume download with file renamed	Error or resume fails
19	TC_RIT_019	Resume upload with file moved	Error or resume fails
20	TC_RIT_020	Resume download with file moved	Error or resume fails
21	TC_RIT_021	Resume upload with symbolic link	Upload resumes to target file
22	TC_RIT_022	Resume download with symbolic link	Download resumes from target file
23	TC_RIT_023	Resume upload with file size mismatch	Resume from correct offset
24	TC_RIT_024	Resume download with file size mismatch	Resume from correct offset
25	TC_RIT_025	Resume upload with checksum validation	Resume only if checksum matches
26	TC_RIT_026	Resume download with checksum validation	Resume only if checksum matches
27	TC_RIT_027	Resume upload with encryption enabled	Upload resumes securely
28	TC_RIT_028	Resume download with encryption enabled	Download resumes securely
29	TC_RIT_029	Resume upload with compression enabled	Upload resumes with compression
30	TC_RIT_030	Resume download with compression enabled	Download resumes with compression
31	TC_RIT_031	Resume upload using GUI client	Upload resumes successfully
32	TC_RIT_032	Resume download using GUI client	Download resumes successfully
33	TC_RIT_033	Resume upload using CLI client	Upload resumes successfully
34	TC_RIT_034	Resume download using CLI client	Download resumes successfully
35	TC_RIT_035	Resume upload using automated script	Upload resumes successfully
36	TC_RIT_036	Resume download using automated script	Download resumes successfully
37	TC_RIT_037	Resume upload with audit logging enabled	Resume event logged
38	TC_RIT_038	Resume download with audit logging enabled	Resume event logged
39	TC_RIT_039	Resume upload with session token expired	Error: Session expired
40	TC_RIT_040	Resume download with session token expired	Error: Session expired
41	TC_RIT_041	Resume upload after MFA re-authentication	Upload resumes after verification
42	TC_RIT_042	Resume download after MFA re-authentication	Download resumes after verification
43	TC_RIT_043	Resume upload with bandwidth throttling	Upload resumes at limited speed
44	TC_RIT_044	Resume download with bandwidth throttling	Download resumes at limited speed
45	TC_RIT_045	Resume upload with file ownership change	Error or resume fails
46	TC_RIT_046	Resume download with file ownership change	Error or resume fails
47	TC_RIT_047	Resume upload with file system full	Error: Disk full
48	TC_RIT_048	Resume download with file system full	Error: Disk full
49	TC_RIT_049	Resume upload with file integrity check	Resume only if integrity is preserved
50	TC_RIT_050	Resume download with file integrity check	Resume only if integrity is preserved

SFTP Feature : File Integrity Verification

File Integrity Verification - Testcases

S.No	Test Case	Description	Expected Result
1	TC_FIV_001	Verify checksum after file upload	Checksum matches original
2	TC_FIV_002	Verify checksum after file download	Checksum matches source
3	TC_FIV_003	Upload file with integrity check enabled	File uploaded and verified
4	TC_FIV_004	Download file with integrity check enabled	File downloaded and verified
5	TC_FIV_005	Upload file with corrupted data	Error: Checksum mismatch
6	TC_FIV_006	Download file with corrupted data	Error: Checksum mismatch
7	TC_FIV_007	Upload file with MD5 verification	MD5 hash matches
8	TC_FIV_008	Download file with SHA-256 verification	SHA-256 hash matches
9	TC_FIV_009	Upload file with no integrity check	File uploaded without verification
10	TC_FIV_010	Download file with no integrity check	File downloaded without verification
11	TC_FIV_011	Upload file with incorrect hash provided	Error: Hash mismatch
12	TC_FIV_012	Download file with incorrect hash provided	Error: Hash mismatch
13	TC_FIV_013	Upload file with hash verification disabled	File uploaded without validation
14	TC_FIV_014	Download file with hash verification disabled	File downloaded without validation
15	TC_FIV_015	Upload file with hash verification timeout	Error: Verification timeout
16	TC_FIV_016	Download file with hash verification timeout	Error: Verification timeout
17	TC_FIV_017	Upload file with hash mismatch alert enabled	Alert triggered on mismatch
18	TC_FIV_018	Download file with hash mismatch alert enabled	Alert triggered on mismatch
19	TC_FIV_019	Upload file with hash stored in metadata	Metadata updated with hash
20	TC_FIV_020	Download file with hash stored in metadata	Hash retrieved and verified
21	TC_FIV_021	Upload file with hash stored in separate file	Hash file created
22	TC_FIV_022	Download file with hash stored in separate file	Hash file used for verification
23	TC_FIV_023	Upload file with hash comparison on server	Server validates hash
24	TC_FIV_024	Download file with hash comparison on client	Client validates hash
25	TC_FIV_025	Upload file with hash comparison on both ends	Both client and server validate
26	TC_FIV_026	Upload file with hash mismatch logged	Mismatch logged in audit
27	TC_FIV_027	Download file with hash mismatch logged	Mismatch logged in audit
28	TC_FIV_028	Upload file with hash verification using CLI	Verification successful
29	TC_FIV_029	Download file with hash verification using CLI	Verification successful
30	TC_FIV_030	Upload file with hash verification using GUI	Verification successful
31	TC_FIV_031	Download file with hash verification using GUI	Verification successful
32	TC_FIV_032	Upload file with hash verification using script	Verification successful
33	TC_FIV_033	Download file with hash verification using script	Verification successful
34	TC_FIV_034	Upload file with hash verification under load	Verification successful
35	TC_FIV_035	Download file with hash verification under load	Verification successful
36	TC_FIV_036	Upload file with hash verification on large file	Verification successful
37	TC_FIV_037	Download file with hash verification on large file	Verification successful
38	TC_FIV_038	Upload file with hash verification on small file	Verification successful
39	TC_FIV_039	Download file with hash verification on small file	Verification successful
40	TC_FIV_040	Upload file with hash verification on encrypted file	Verification successful
41	TC_FIV_041	Download file with hash verification on encrypted file	Verification successful
42	TC_FIV_042	Upload file with hash verification on compressed file	Verification successful
43	TC_FIV_043	Download file with hash verification on compressed file	Verification successful
44	TC_FIV_044	Upload file with hash verification and retry on failure	Retry triggered and success
45	TC_FIV_045	Download file with hash verification and retry on failure	Retry triggered and success
46	TC_FIV_046	Upload file with hash verification and alert to admin	Admin notified on failure
47	TC_FIV_047	Download file with hash verification and alert to admin	Admin notified on failure
48	TC_FIV_048	Upload file with hash verification and audit trail	Audit log updated
49	TC_FIV_049	Download file with hash verification and audit trail	Audit log updated
50	TC_FIV_050	Upload and download with end-to-end integrity check	File verified at both ends

SFTP Feature : Logging and Auditing

Logging and Auditing - Testcases

S.No	Test Case	Description	Expected Result
1	TC_LA_001	Enable logging on SFTP server	Logging starts successfully
2	TC_LA_002	Disable logging on SFTP server	Logging stops successfully
3	TC_LA_003	Upload a file and check log entry	Upload event is logged
4	TC_LA_004	Download a file and check log entry	Download event is logged
5	TC_LA_005	Delete a file and check log entry	Deletion event is logged
6	TC_LA_006	Rename a file and check log entry	Rename event is logged
7	TC_LA_007	Create a directory and check log entry	Directory creation is logged
8	TC_LA_008	Delete a directory and check log entry	Directory deletion is logged
9	TC_LA_009	Attempt unauthorized access	Unauthorized attempt is logged
10	TC_LA_010	Attempt to access non-existent file	Error is logged
11	TC_LA_011	Successful login attempt	Login success is logged
12	TC_LA_012	Failed login attempt	Login failure is logged
13	TC_LA_013	Session start and end	Session lifecycle is logged
14	TC_LA_014	Log client IP address	IP address is recorded
15	TC_LA_015	Log client username	Username is recorded
16	TC_LA_016	Log file size during transfer	File size is recorded
17	TC_LA_017	Log transfer duration	Duration is recorded
18	TC_LA_018	Log transfer protocol version	Protocol version is recorded
19	TC_LA_019	Log file path accessed	Full path is recorded
20	TC_LA_020	Log file permission changes	Permission change is logged
21	TC_LA_021	Log file ownership changes	Ownership change is logged
22	TC_LA_022	Log symbolic link access	Symlink access is logged
23	TC_LA_023	Log file access via relative path	Relative path is logged
24	TC_LA_024	Log file access via absolute path	Absolute path is logged
25	TC_LA_025	Log file access with path traversal attempt	Attempt is logged and blocked
26	TC_LA_026	Log file access with unicode characters	Unicode filename is logged
27	TC_LA_027	Log file access with special characters	Special characters are logged
28	TC_LA_028	Log file access with long filename	Long filename is logged
29	TC_LA_029	Log file access with invalid characters	Invalid filename attempt is logged
30	TC_LA_030	Log file overwrite event	Overwrite is logged
31	TC_LA_031	Log file integrity check result	Integrity result is logged
32	TC_LA_032	Log file transfer with encryption enabled	Encrypted transfer is logged
33	TC_LA_033	Log file transfer with compression enabled	Compressed transfer is logged
34	TC_LA_034	Log file transfer with resume enabled	Resume event is logged
35	TC_LA_035	Log file transfer with timeout	Timeout is logged
36	TC_LA_036	Log file transfer with retry	Retry attempt is logged
37	TC_LA_037	Log file transfer with checksum verification	Checksum result is logged
38	TC_LA_038	Log file transfer with bandwidth throttling	Throttling is logged
39	TC_LA_039	Log file transfer with session token	Token usage is logged
40	TC_LA_040	Log file transfer with MFA enabled	MFA event is logged
41	TC_LA_041	Log file transfer with expired credentials	Expired session is logged
42	TC_LA_042	Log file transfer with invalid credentials	Invalid credentials are logged
43	TC_LA_043	Log file transfer with audit trail export	Audit trail is exported
44	TC_LA_044	Log file transfer with audit trail disabled	No audit entry is created
45	TC_LA_045	Log file transfer with concurrent sessions	Each session is logged separately
46	TC_LA_046	Log file transfer with session interruption	Interruption is logged
47	TC_LA_047	Log file transfer with session reconnection	Reconnection is logged
48	TC_LA_048	Log file transfer with client disconnect	Disconnect is logged
49	TC_LA_049	Log file transfer with server restart	Restart and recovery are logged
50	TC_LA_050	Log file transfer with full audit compliance	All actions are logged and verified

SFTP Feature : Cross-Platform Compatibility

Cross-Platform Compatibility - Testcases

S.No	Test Case	Description	Expected Result
1	TC_CP_001	Upload file from Windows to Linux server	File uploaded successfully
2	TC_CP_002	Download file from Linux server to Windows	File downloaded successfully
3	TC_CP_003	Upload file from macOS to Windows server	File uploaded successfully
4	TC_CP_004	Download file from Windows server to macOS	File downloaded successfully
5	TC_CP_005	Upload file from Linux to macOS server	File uploaded successfully
6	TC_CP_006	Download file from macOS server to Linux	File downloaded successfully
7	TC_CP_007	Upload file from Android to Linux server	File uploaded successfully
8	TC_CP_008	Download file from Linux server to Android	File downloaded successfully
9	TC_CP_009	Upload file from iOS to Windows server	File uploaded successfully
10	TC_CP_010	Download file from Windows server to iOS	File downloaded successfully
11	TC_CP_011	Upload file from embedded system to Linux server	File uploaded successfully
12	TC_CP_012	Download file from Linux server to embedded system	File downloaded successfully
13	TC_CP_013	Upload file with Windows-style line endings to Linux	File uploaded with correct format
14	TC_CP_014	Download file with Linux-style line endings to Windows	File downloaded with correct format
15	TC_CP_015	Upload file with UTF-8 encoding from macOS	File encoding preserved
16	TC_CP_016	Download file with UTF-8 encoding to Windows	File encoding preserved
17	TC_CP_017	Upload file with special characters from Linux	Filename preserved
18	TC_CP_018	Download file with special characters to Windows	Filename preserved or sanitized
19	TC_CP_019	Upload file with long filename from Windows	File uploaded or error based on OS
20	TC_CP_020	Download file with long filename to macOS	File downloaded or truncated
21	TC_CP_021	Upload file with case-sensitive name from Linux	File uploaded with exact name
22	TC_CP_022	Download file with case-sensitive name to Windows	File may overwrite due to case insensitivity
23	TC_CP_023	Upload file from Windows with hidden attribute	File uploaded without hidden attribute
24	TC_CP_024	Download file to Linux and check hidden status	File downloaded as normal file
25	TC_CP_025	Upload file from Android using SFTP app	File uploaded successfully
26	TC_CP_026	Download file to iOS using SFTP app	File downloaded successfully
27	TC_CP_027	Upload file from Windows using PowerShell	File uploaded successfully
28	TC_CP_028	Download file to Linux using shell script	File downloaded successfully
29	TC_CP_029	Upload file from macOS using Automator	File uploaded successfully
30	TC_CP_030	Download file to Windows using WinSCP	File downloaded successfully
31	TC_CP_031	Upload file from Linux using FileZilla	File uploaded successfully
32	TC_CP_032	Download file to macOS using Cyberduck	File downloaded successfully
33	TC_CP_033	Upload file from Windows with NTFS permissions	Permissions not preserved
34	TC_CP_034	Download file to Linux and check permissions	Default Linux permissions applied
35	TC_CP_035	Upload file from Linux with chmod 755	Permissions preserved on Linux server
36	TC_CP_036	Download file to Windows and check execution	File downloaded, execution depends on OS
37	TC_CP_037	Upload file from iOS with sandbox restrictions	File uploaded if app has access
38	TC_CP_038	Download file to Android with storage permissions	File downloaded successfully
39	TC_CP_039	Upload file from Windows with Unicode filename	Filename preserved or converted
40	TC_CP_040	Download file to Linux with Unicode filename	Filename preserved
41	TC_CP_041	Upload file from Linux with symbolic link	Link uploaded or resolved
42	TC_CP_042	Download file to Windows with symbolic link	Link may be ignored or resolved
43	TC_CP_043	Upload file from macOS with resource fork	Resource fork ignored or stripped
44	TC_CP_044	Download file to Windows and check metadata	Metadata not preserved
45	TC_CP_045	Upload file from Linux with ACLs	ACLs not preserved
46	TC_CP_046	Download file to Windows with ACLs	ACLs not applied
47	TC_CP_047	Upload file from Windows with alternate data streams	ADS ignored or stripped
48	TC_CP_048	Download file to Linux and check for ADS	No ADS present
49	TC_CP_049	Upload file from Linux with extended attributes	Attributes not preserved
50	TC_CP_050	Download file to macOS and check extended attributes	Attributes not preserved

SFTP Feature : Firewall-Friendly

Firewall-Friendly - Testcases

S.No	Test Case	Description	Expected Result
1	TC_FW_001	Connect to SFTP server on default port 22	Connection successful
2	TC_FW_002	Block port 22 on firewall	Connection fails
3	TC_FW_003	Allow port 22 on firewall	Connection successful
4	TC_FW_004	Use SFTP over SSH through firewall	Connection successful
5	TC_FW_005	Attempt SFTP connection on non-standard port	Connection fails unless port is open
6	TC_FW_006	Configure firewall to allow custom SFTP port	Connection successful
7	TC_FW_007	Use SFTP with NAT traversal	Connection successful
8	TC_FW_008	Use SFTP behind corporate firewall	Connection successful if port 22 is open
9	TC_FW_009	Use SFTP with stateful firewall inspection	Connection successful
10	TC_FW_010	Use SFTP with stateless firewall	Connection successful if rules are correct
11	TC_FW_011	Use SFTP with deep packet inspection firewall	Connection allowed if SSH is permitted
12	TC_FW_012	Use SFTP with application-layer firewall	Connection allowed if SFTP is whitelisted
13	TC_FW_013	Use SFTP with port forwarding enabled	Connection successful
14	TC_FW_014	Use SFTP with port forwarding disabled	Connection fails
15	TC_FW_015	Use SFTP with proxy server	Connection successful if proxy allows SSH
16	TC_FW_016	Use SFTP with VPN tunnel	Connection successful
17	TC_FW_017	Use SFTP with IP whitelisting	Connection allowed for whitelisted IPs
18	TC_FW_018	Use SFTP with IP blacklisting	Connection blocked for blacklisted IPs
19	TC_FW_019	Use SFTP with dynamic IP client	Connection successful if firewall allows
20	TC_FW_020	Use SFTP with static IP client	Connection successful
21	TC_FW_021	Use SFTP with firewall logging enabled	Connection logged
22	TC_FW_022	Use SFTP with firewall logging disabled	No connection logs
23	TC_FW_023	Use SFTP with IDS/IPS enabled	Connection allowed unless flagged
24	TC_FW_024	Use SFTP with IDS/IPS blocking SSH	Connection blocked
25	TC_FW_025	Use SFTP with SSH key authentication	Connection successful
26	TC_FW_026	Use SFTP with password authentication	Connection successful
27	TC_FW_027	Use SFTP with brute-force protection	Multiple failed attempts blocked
28	TC_FW_028	Use SFTP with rate limiting	Excessive connections throttled
29	TC_FW_029	Use SFTP with firewall session timeout	Idle session terminated
30	TC_FW_030	Use SFTP with firewall session persistence	Session maintained
31	TC_FW_031	Use SFTP with firewall rule misconfiguration	Connection fails
32	TC_FW_032	Use SFTP with correct firewall rule set	Connection successful
33	TC_FW_033	Use SFTP with IPv6 through firewall	Connection successful
34	TC_FW_034	Use SFTP with IPv4 through firewall	Connection successful
35	TC_FW_035	Use SFTP with dual-stack network	Connection successful
36	TC_FW_036	Use SFTP with firewall port range restriction	Connection successful if port 22 is allowed
37	TC_FW_037	Use SFTP with firewall port scanning detection	Connection may be flagged
38	TC_FW_038	Use SFTP with firewall alerting enabled	Alerts generated on connection
39	TC_FW_039	Use SFTP with firewall alerting disabled	No alerts generated
40	TC_FW_040	Use SFTP with firewall in learning mode	Connection allowed and rule suggested
41	TC_FW_041	Use SFTP with firewall in strict mode	Connection blocked unless explicitly allowed
42	TC_FW_042	Use SFTP with firewall rule for specific user	Connection allowed for that user
43	TC_FW_043	Use SFTP with firewall rule for specific group	Connection allowed for that group
44	TC_FW_044	Use SFTP with firewall rule for specific time window	Connection allowed during allowed time
45	TC_FW_045	Use SFTP with firewall rule for specific file types	Connection allowed regardless of file type
46	TC_FW_046	Use SFTP with firewall rule for specific domains	Connection allowed if domain is permitted
47	TC_FW_047	Use SFTP with firewall rule for specific protocols	Connection allowed for SSH/SFTP
48	TC_FW_048	Use SFTP with firewall rule for specific ports	Connection allowed if port 22 is open
49	TC_FW_049	Use SFTP with firewall rule for specific MAC addresses	Connection allowed for listed MACs
50	TC_FW_050	Use SFTP with firewall rule audit trail	All connection attempts logged and reviewed

SFTP Feature : Compression Support

Compression Support - Testcases

S.No	Test Case	Description	Expected Result
1	TC_CS_001	Enable compression on SFTP client	Compression enabled successfully
2	TC_CS_002	Disable compression on SFTP client	Compression disabled successfully
3	TC_CS_003	Upload file with compression enabled	File uploaded with reduced size
4	TC_CS_004	Download file with compression enabled	File downloaded with reduced size
5	TC_CS_005	Upload file with compression disabled	File uploaded without compression
6	TC_CS_006	Download file with compression disabled	File downloaded without compression
7	TC_CS_007	Upload large text file with compression	Significant size reduction
8	TC_CS_008	Upload binary file with compression	Minimal or no size reduction
9	TC_CS_009	Upload already compressed file (e.g., .zip)	No further compression
10	TC_CS_010	Download already compressed file	File downloaded as-is
11	TC_CS_011	Upload file with compression and verify integrity	File integrity maintained
12	TC_CS_012	Download file with compression and verify integrity	File integrity maintained
13	TC_CS_013	Upload file with compression and resume transfer	Transfer resumes with compression
14	TC_CS_014	Download file with compression and resume transfer	Transfer resumes with compression
15	TC_CS_015	Upload file with compression and verify speed	Transfer is faster for compressible files
16	TC_CS_016	Download file with compression and verify speed	Transfer is faster for compressible files
17	TC_CS_017	Upload file with compression and slow network	Transfer completes with reduced bandwidth
18	TC_CS_018	Download file with compression and slow network	Transfer completes with reduced bandwidth
19	TC_CS_019	Upload file with compression and packet loss	Transfer retries and completes
20	TC_CS_020	Download file with compression and packet loss	Transfer retries and completes
21	TC_CS_021	Upload file with compression and timeout	Error: Transfer timeout
22	TC_CS_022	Download file with compression and timeout	Error: Transfer timeout
23	TC_CS_023	Upload file with compression and encryption	File uploaded securely and compressed
24	TC_CS_024	Download file with compression and encryption	File downloaded securely and compressed
25	TC_CS_025	Upload file with compression and audit logging	Compression event logged
26	TC_CS_026	Download file with compression and audit logging	Compression event logged
27	TC_CS_027	Upload file with compression using GUI client	File uploaded with compression
28	TC_CS_028	Download file with compression using GUI client	File downloaded with compression
29	TC_CS_029	Upload file with compression using CLI client	File uploaded with compression
30	TC_CS_030	Download file with compression using CLI client	File downloaded with compression
31	TC_CS_031	Upload file with compression using script	File uploaded with compression
32	TC_CS_032	Download file with compression using script	File downloaded with compression
33	TC_CS_033	Upload file with compression and verify CPU usage	CPU usage increases during compression
34	TC_CS_034	Download file with compression and verify CPU usage	CPU usage increases during decompression
35	TC_CS_035	Upload file with compression and verify memory usage	Memory usage within acceptable limits
36	TC_CS_036	Download file with compression and verify memory usage	Memory usage within acceptable limits
37	TC_CS_037	Upload file with compression and verify disk usage	Disk usage reduced on server
38	TC_CS_038	Download file with compression and verify disk usage	Disk usage reduced on client
39	TC_CS_039	Upload file with compression and verify transfer logs	Compression details logged
40	TC_CS_040	Download file with compression and verify transfer logs	Compression details logged
41	TC_CS_041	Upload file with compression and verify compatibility	Compatible with standard SFTP servers
42	TC_CS_042	Download file with compression and verify compatibility	Compatible with standard SFTP clients
43	TC_CS_043	Upload file with compression and verify fallback	Falls back to uncompressed if unsupported
44	TC_CS_044	Download file with compression and verify fallback	Falls back to uncompressed if unsupported
45	TC_CS_045	Upload file with compression and verify error handling	Errors handled gracefully
46	TC_CS_046	Download file with compression and verify error handling	Errors handled gracefully
47	TC_CS_047	Upload file with compression and verify retry logic	Retries succeed with compression
48	TC_CS_048	Download file with compression and verify retry logic	Retries succeed with compression
49	TC_CS_049	Upload file with compression and verify session persistence	Session remains stable
50	TC_CS_050	Download file with compression and verify session persistence	Session remains stable

SFTP Feature : Symbolic Link Handling

Symbolic Link Handling - Testcases

S.No	Test Case	Description	Expected Result
1	TC_SL_001	List symbolic link in directory	Symbolic link is listed
2	TC_SL_002	Upload a symbolic link	Link uploaded or resolved based on config
3	TC_SL_003	Download a symbolic link	Target file downloaded or link downloaded
4	TC_SL_004	Delete a symbolic link	Link deleted, target remains
5	TC_SL_005	Rename a symbolic link	Link renamed successfully
6	TC_SL_006	Create a symbolic link via SFTP (if supported)	Link created or error if unsupported
7	TC_SL_007	Access symbolic link pointing to file	Target file accessed
8	TC_SL_008	Access symbolic link pointing to directory	Target directory accessed
9	TC_SL_009	Access broken symbolic link	Error: No such file or directory
10	TC_SL_010	Access symbolic link with relative path	Link resolved correctly
11	TC_SL_011	Access symbolic link with absolute path	Link resolved correctly
12	TC_SL_012	Access symbolic link with circular reference	Error: Too many levels of symbolic links
13	TC_SL_013	Upload symbolic link to file	Target file uploaded or link ignored
14	TC_SL_014	Upload symbolic link to directory	Target directory uploaded or link ignored
15	TC_SL_015	Download symbolic link to file	Target file downloaded
16	TC_SL_016	Download symbolic link to directory	Target directory downloaded
17	TC_SL_017	Follow symbolic link during file transfer	Target file transferred
18	TC_SL_018	Do not follow symbolic link during file transfer	Link transferred as-is or skipped
19	TC_SL_019	Change permissions of symbolic link	Permissions of link or target updated
20	TC_SL_020	Change ownership of symbolic link	Ownership of link or target updated
21	TC_SL_021	List symbolic link with ls -l	Link and target path shown
22	TC_SL_022	Resolve symbolic link using readlink	Target path returned
23	TC_SL_023	Symbolic link to non-SFTP accessible path	Error or access denied
24	TC_SL_024	Symbolic link to restricted file	Access denied
25	TC_SL_025	Symbolic link to restricted directory	Access denied
26	TC_SL_026	Symbolic link with special characters	Link handled correctly
27	TC_SL_027	Symbolic link with unicode characters	Link handled correctly
28	TC_SL_028	Symbolic link with long name	Link handled or error if too long
29	TC_SL_029	Symbolic link with invalid characters	Error: Invalid name
30	TC_SL_030	Symbolic link in hidden directory	Link accessed successfully
31	TC_SL_031	Symbolic link to hidden file	Hidden file accessed
32	TC_SL_032	Symbolic link to file with no permissions	Error: Permission denied
33	TC_SL_033	Symbolic link to file with read-only permissions	File accessed read-only
34	TC_SL_034	Symbolic link to file with write-only permissions	File accessed write-only
35	TC_SL_035	Symbolic link to file with execute-only permissions	File executed if allowed
36	TC_SL_036	Symbolic link to file on different filesystem	File accessed if mount is available
37	TC_SL_037	Symbolic link to file on network share	File accessed if share is mounted
38	TC_SL_038	Symbolic link to file on removable media	File accessed if media is mounted
39	TC_SL_039	Symbolic link to file with ACLs	ACLs respected
40	TC_SL_040	Symbolic link to file with extended attributes	Attributes preserved or ignored
41	TC_SL_041	Symbolic link to file with audit logging enabled	Access logged
42	TC_SL_042	Symbolic link to file with audit logging disabled	Access not logged
43	TC_SL_043	Symbolic link to file with encryption	Encrypted file accessed
44	TC_SL_044	Symbolic link to file with compression	Compressed file accessed
45	TC_SL_045	Symbolic link to file with integrity check	Integrity verified
46	TC_SL_046	Symbolic link to file with backup enabled	Backup triggered
47	TC_SL_047	Symbolic link to file with version control	Version tracked
48	TC_SL_048	Symbolic link to file with checksum validation	Checksum verified
49	TC_SL_049	Symbolic link to file with session timeout	Error: Session expired
50	TC_SL_050	Symbolic link to file with MFA required	Access granted after MFA

SFTP Feature : Atomic Operations

Atomic Operations - Testcases

S.No	Test Case	Description	Expected Result
1	TC_AO_001	Upload a file atomically	File appears only after complete upload
2	TC_AO_002	Download a file atomically	File is fully downloaded or not at all
3	TC_AO_003	Rename a file atomically	File renamed without intermediate state
4	TC_AO_004	Delete a file atomically	File is removed in a single operation
5	TC_AO_005	Move a file atomically	File moved without partial state
6	TC_AO_006	Upload fails mid-transfer	No partial file left on server
7	TC_AO_007	Download fails mid-transfer	No partial file saved on client
8	TC_AO_008	Rename fails mid-operation	Original file remains unchanged
9	TC_AO_009	Delete fails mid-operation	File remains intact
10	TC_AO_010	Move fails mid-operation	File remains in original location
11	TC_AO_011	Upload file with retry logic	File uploaded once, no duplicates
12	TC_AO_012	Download file with retry logic	File downloaded once, no corruption
13	TC_AO_013	Upload file with checksum validation	File committed only if checksum matches
14	TC_AO_014	Download file with checksum validation	File saved only if checksum matches
15	TC_AO_015	Upload file with temporary name	File renamed to final name after success
16	TC_AO_016	Download file to temporary name	File renamed to final name after success
17	TC_AO_017	Upload file with lock mechanism	File locked during transfer
18	TC_AO_018	Download file with lock mechanism	File locked during transfer
19	TC_AO_019	Concurrent upload attempts	Only one upload succeeds
20	TC_AO_020	Concurrent download attempts	All downloads succeed without conflict
21	TC_AO_021	Atomic write to existing file	File replaced only after full write
22	TC_AO_022	Atomic append to file	Append operation completes fully or not at all
23	TC_AO_023	Atomic directory creation	Directory appears only after full creation
24	TC_AO_024	Atomic directory deletion	Directory removed only if empty
25	TC_AO_025	Atomic permission change	Permissions updated in a single step
26	TC_AO_026	Atomic ownership change	Ownership updated without intermediate state
27	TC_AO_027	Atomic symbolic link creation	Link appears only after full creation
28	TC_AO_028	Atomic symbolic link deletion	Link removed in a single operation
29	TC_AO_029	Atomic file overwrite	New file replaces old one completely
30	TC_AO_030	Atomic file rollback on failure	Original file restored on failure
31	TC_AO_031	Atomic file sync with remote	File updated only after full sync
32	TC_AO_032	Atomic file transfer with audit logging	Log entry created only after success
33	TC_AO_033	Atomic file transfer with encryption	File encrypted and transferred atomically
34	TC_AO_034	Atomic file transfer with compression	File compressed and transferred atomically
35	TC_AO_035	Atomic file transfer with integrity check	File committed only if integrity verified
36	TC_AO_036	Atomic file transfer with session timeout	Transfer aborted cleanly on timeout
37	TC_AO_037	Atomic file transfer with network failure	No partial file left
38	TC_AO_038	Atomic file transfer with disk full	Transfer fails without partial file
39	TC_AO_039	Atomic file transfer with permission error	Transfer fails without changes
40	TC_AO_040	Atomic file transfer with concurrent session	File integrity maintained
41	TC_AO_041	Atomic file transfer with interrupted session	Transfer resumes or rolls back
42	TC_AO_042	Atomic file transfer with audit trail export	Audit trail reflects only successful operations
43	TC_AO_043	Atomic file transfer with version control	New version committed only after success
44	TC_AO_044	Atomic file transfer with backup enabled	Backup created only after successful transfer
45	TC_AO_045	Atomic file transfer with rollback support	System reverts to previous state on failure
46	TC_AO_046	Atomic file transfer with temporary storage	File moved to final location after success
47	TC_AO_047	Atomic file transfer with file lock release	Lock released only after successful transfer
48	TC_AO_048	Atomic file transfer with file lock timeout	Lock expires and file remains unchanged
49	TC_AO_049	Atomic file transfer with user notification	Notification sent only after success
50	TC_AO_050	Atomic file transfer with logging disabled	No logs created, file still transferred atomically

SFTP Feature : Session Management

Session Management - Testcases

S.No	Test Case	Description	Expected Result
1	TC_SM_001	Establish a new SFTP session	Session established successfully
2	TC_SM_002	Terminate an active SFTP session	Session terminated gracefully
3	TC_SM_003	Reconnect after session timeout	New session established
4	TC_SM_004	Resume session after network interruption	Session resumes or reconnects
5	TC_SM_005	Attempt operation after session timeout	Error: Session expired
6	TC_SM_006	Attempt operation after session termination	Error: Session not found
7	TC_SM_007	Maintain session during file transfer	Session remains active
8	TC_SM_008	Maintain session during idle period	Session remains active if timeout not reached
9	TC_SM_009	Auto-disconnect after idle timeout	Session terminated automatically
10	TC_SM_010	Configure custom session timeout	Timeout applied as configured
11	TC_SM_011	Attempt multiple concurrent sessions	All sessions established successfully
12	TC_SM_012	Exceed maximum allowed sessions	Error: Too many sessions
13	TC_SM_013	Monitor session activity logs	Session events logged correctly
14	TC_SM_014	Authenticate session with valid credentials	Session established
15	TC_SM_015	Authenticate session with invalid credentials	Error: Authentication failed
16	TC_SM_016	Authenticate session with expired credentials	Error: Session denied
17	TC_SM_017	Authenticate session with MFA enabled	Session established after MFA
18	TC_SM_018	Attempt session with revoked credentials	Error: Access denied
19	TC_SM_019	Attempt session with locked account	Error: Account locked
20	TC_SM_020	Attempt session with IP restriction	Error: IP not allowed
21	TC_SM_021	Attempt session with MAC restriction	Error: MAC not allowed
22	TC_SM_022	Attempt session with invalid SSH key	Error: Key rejected
23	TC_SM_023	Establish session with valid SSH key	Session established
24	TC_SM_024	Establish session with password authentication	Session established
25	TC_SM_025	Establish session with key-based authentication	Session established
26	TC_SM_026	Establish session with both key and password	Session established
27	TC_SM_027	Log session start and end times	Timestamps recorded
28	TC_SM_028	Log session IP and user details	Session metadata logged
29	TC_SM_029	Log session file activity	File operations logged
30	TC_SM_030	Log session errors	Errors logged correctly
31	TC_SM_031	Log session disconnect reason	Reason recorded
32	TC_SM_032	Attempt session with invalid protocol version	Error: Protocol mismatch
33	TC_SM_033	Attempt session with unsupported cipher	Error: Cipher not supported
34	TC_SM_034	Attempt session with unsupported compression	Error: Compression not supported
35	TC_SM_035	Attempt session with unsupported MAC	Error: MAC not supported
36	TC_SM_036	Attempt session with expired token	Error: Token expired
37	TC_SM_037	Attempt session with invalid token	Error: Invalid token
38	TC_SM_038	Attempt session with expired certificate	Error: Certificate expired
39	TC_SM_039	Attempt session with revoked certificate	Error: Certificate revoked
40	TC_SM_040	Attempt session with valid certificate	Session established
41	TC_SM_041	Attempt session with firewall blocking port	Error: Connection refused
42	TC_SM_042	Attempt session with proxy enabled	Session established via proxy
43	TC_SM_043	Attempt session with VPN enabled	Session established via VPN
44	TC_SM_044	Attempt session with bandwidth throttling	Session established with limited speed
45	TC_SM_045	Attempt session with high latency	Session established with delay
46	TC_SM_046	Attempt session with packet loss	Session retries and succeeds
47	TC_SM_047	Attempt session with encryption enabled	Session encrypted
48	TC_SM_048	Attempt session with compression enabled	Session established with compression
49	TC_SM_049	Attempt session with audit trail enabled	Session logged for auditing
50	TC_SM_050	Attempt session with audit trail disabled	Session not logged

SFTP Feature : Integration with SSH

Integration with SSH - Testcases

S.No	Test Case	Description	Expected Result
1	TC_SSH_001	Establish SFTP session over SSH	Session established securely
2	TC_SSH_002	Use SSH key-based authentication	Session authenticated using SSH key
3	TC_SSH_003	Use SSH password-based authentication	Session authenticated using password
4	TC_SSH_004	Use SSH with public-private key pair	Session established with key pair
5	TC_SSH_005	Use SSH with invalid private key	Error: Authentication failed
6	TC_SSH_006	Use SSH with expired key	Error: Key expired
7	TC_SSH_007	Use SSH with revoked key	Error: Key revoked
8	TC_SSH_008	Use SSH with passphrase-protected key	Prompt for passphrase and connect
9	TC_SSH_009	Use SSH with incorrect passphrase	Error: Authentication failed
10	TC_SSH_010	Use SSH with known_hosts verification	Host verified and session established
11	TC_SSH_011	Use SSH with unknown host	Warning or error based on config
12	TC_SSH_012	Use SSH with strict host key checking	Connection denied if host key mismatch
13	TC_SSH_013	Use SSH with disabled host key checking	Connection allowed without verification
14	TC_SSH_014	Use SSH with multiple authentication methods	Session established using fallback
15	TC_SSH_015	Use SSH with MFA enabled	Session established after MFA
16	TC_SSH_016	Use SSH with certificate-based authentication	Session established with certificate
17	TC_SSH_017	Use SSH with expired certificate	Error: Certificate expired
18	TC_SSH_018	Use SSH with revoked certificate	Error: Certificate revoked
19	TC_SSH_019	Use SSH with valid certificate	Session established
20	TC_SSH_020	Use SSH with port forwarding	Session established with port forwarding
21	TC_SSH_021	Use SSH with X11 forwarding disabled	Session established without X11
22	TC_SSH_022	Use SSH with compression enabled	Session established with compression
23	TC_SSH_023	Use SSH with compression disabled	Session established without compression
24	TC_SSH_024	Use SSH with custom port	Session established on custom port
25	TC_SSH_025	Use SSH with default port 22	Session established
26	TC_SSH_026	Use SSH with firewall blocking port 22	Error: Connection refused
27	TC_SSH_027	Use SSH with VPN	Session established over VPN
28	TC_SSH_028	Use SSH with proxy	Session established through proxy
29	TC_SSH_029	Use SSH with IPv6	Session established over IPv6
30	TC_SSH_030	Use SSH with IPv4	Session established over IPv4
31	TC_SSH_031	Use SSH with DNS resolution	Host resolved and session established
32	TC_SSH_032	Use SSH with IP address	Session established using IP
33	TC_SSH_033	Use SSH with session timeout	Session terminated after timeout
34	TC_SSH_034	Use SSH with keep-alive enabled	Session remains active
35	TC_SSH_035	Use SSH with keep-alive disabled	Session may timeout
36	TC_SSH_036	Use SSH with idle timeout	Session terminated after inactivity
37	TC_SSH_037	Use SSH with audit logging enabled	Session activities logged
38	TC_SSH_038	Use SSH with audit logging disabled	No session logs generated
39	TC_SSH_039	Use SSH with brute-force protection	Multiple failed attempts blocked
40	TC_SSH_040	Use SSH with rate limiting	Excessive connections throttled
41	TC_SSH_041	Use SSH with session multiplexing	Multiple sessions share one connection
42	TC_SSH_042	Use SSH with session isolation	Each session uses separate connection
43	TC_SSH_043	Use SSH with encryption algorithm AES	Session encrypted with AES
44	TC_SSH_044	Use SSH with encryption algorithm ChaCha20	Session encrypted with ChaCha20
45	TC_SSH_045	Use SSH with unsupported cipher	Error: Cipher not supported
46	TC_SSH_046	Use SSH with MAC algorithm SHA-2	Session integrity verified
47	TC_SSH_047	Use SSH with unsupported MAC	Error: MAC not supported
48	TC_SSH_048	Use SSH with banner message	Banner displayed on connection
49	TC_SSH_049	Use SSH with login restrictions	Access denied based on policy
50	TC_SSH_050	Use SSH with successful file transfer	File transferred securely over SSH

Reference links

• Reference links