SFTP component

Rebex File Transfer Pack includes Rebex SFTP.

A file transfer component. Makes it possible to transfer files over a secure SSH channel using the SFTP protocol.

Rebex SFTP homepage

Easy-to-use API

• Transferring files
• Transferring directories
• Transferring files with a specific extension
• Displaying progress bar

Connecting

• Connecting to SFTP/SSH servers
• Setting connection options
• Getting info about existing connection
• Reusing SSH connection in multiple SFTP/SCP/SSH sessions
• Checking connection state

Authentication modes

• Username and password
• Public/private key authentication
• X509 certificate authentication (VanDyke VShell, Tectia Server)
• GSSAPI
• Single sign-on
• Kerberos authentication
• NTLM authentication
• Advanced keyboard-interactive authentication

Single file operations

• Single-file upload and download
• Stream-based upload and download
• Deleting a file
• Rename/move a file
• Atomic POSIX rename
• Checking file existence
• Getting file length
• Getting and setting file date/time
• Getting file checksums
• Working with file attributes
• Creating symlinks and hard links
• Resolving symlinks
• Partial file transfer (appending)
• Partial file transfer (resuming)

Multiple files operations

• Multi-file upload and download
• Recursive directory upload and download
• Deleting multiple files
• Deleting directories recursively
• Using wildcards
• Using FileSet
• Merging multiple directories
• Moving files between client and server
• Symlink detection and handling

Directory operations

• Working with current directory
• Listing directory content
• Listing directory content - recursively
• Listing directory content - on the fly
• Getting raw directory listing
• Finding files
• Creating a directory
• Deleting a directory
• Deleting directories recursively
• Renaming/moving a directory
• Checking directory existence
• Sorting directory content
• LINQ support - IEnumerable<T> collection

More file transfer operations

• Resuming interrupted transfers
• Overwriting existing files
• Auto-renaming existing files
• Progress reporting
• Transfer problem handling
• Restoring date&time after transfer
• ASCII and binary transfer modes

Advanced features

• Disk free space and other drive information
• Buffered data commit (fsync)
• ZLIB transfer compression
• Large file support
• Simultaneous operations

Transfer speed management

• Limiting transfer speed (bandwidth throttling)
• Speed monitoring (transfer speed event)
• Optimized transfer (request queuing)
• Large buffer mode

Events

• AuthenticationRequest event
• BannerReceived event
• DeleteProgressChanged event
• FingerprintCheck event
• ListItemReceived event
• ProblemDetected event
• TransferProgressChanged event
• Traversing event

Asynchronous operations

• Task-based Asynchronous Pattern (.NET 4.0 or later)
• 'await' operator support (.NET 4.5 or later)
• IAsyncResult pattern (Begin/End methods)
• Using IAsyncResult in .NET 4.0 or later
• SynchronizationContext support for events

Communication logging

• Logging communication using LogWriter
• Log verbosity levels
• Built-in log writers
• Writing custom log writers

Common API for SFTP and FTP

• Protocol-agnostic file transfer API

SCP

• Connecting and authenticating
• Uploading or downloading a single file
• Uploading or downloading multiple files
• Progress reporting

SSH core

• Running remote commands
• SSH session sharing
• Changing password
• Keep-alive packet (pinging SSH server)
• Tunneling TCP protocols through SSH
• Key re-exchange
• SSH ciphers
• Server ciphers information

Security

• Server verification
• Verifying server fingerprint
• Verifying server key
• Server key verification event
• Security settings and algorithms

Private keys

• Loading and saving SSH keys
• PKCS #8 keys
• PuTTY .ppk keys
• OpenSSH/OpenSSL (SSLeay) keys
• New OpenSSH keys
• Public keys
• SSH key generation
• Conversion between formats
• Certificate-based private keys
• AsymmetricAlgorithm-based private keys
• Using keys on smart cards

Proxies and custom sockets

• SOCKS4/SOCKS5 proxy servers
• HTTP CONNECT proxy servers
• Proxies with single sign-on
• SSH server as proxy
• Custom transport layer - ISocket

SSIS, SQL CLR, PowerShell

• Using SFTP in SSIS packages
• Using SFTP in SQL CLR
• Using SFTP in PowerShell

Standards and platform support

• 100% managed .NET code with no external dependencies
• .NET Framework on Windows
• .NET Core
• .NET Standard
• Mono on Linux
• .NET Compact Framework on handhelds and mobiles
• Xamarin.iOS
• Xamarin.Android
• Xamarin.Mac
• Universal Windows Platform
• ASP.NET
• Legacy platform support
• Internet RFC specifications
• SFTP version 3 and 4
• FIPS 140-2 mode
• Proxy servers
• Cryptographic algorithms
• Private key formats
• Scripting platforms
• Other technologies

Compatibility

• XCOPY deployment
• Supported SFTP/SSH servers
• Workarounds for common server issues