Menu
NET Core doesn't support native SFTP or SCP protocols. Thus we need to borrow an external SFTP client library. Among a list of SFTP client libraries, SSH.NET is free and works fine for most use cases.
SFTP File Transfer Protocol - get SFTP client & server. SFTP (SSH File Transfer Protocol) is a secure file transfer protocol. It runs over the SSH protocol. It supports the full security and authentication functionality of SSH.
Rebex SFTP for . NET is a versatile file-transfer component for . NET languages (such as C# or VB.NET). It enables you to transfer files directly from your application using SFTP, a powerful and secure file-transfer protocol that runs over an SSH session.
Make sure you're using SFTP. That does not mean FTPS, and not the old and insecure FTP. Make sure you use port 1022 , many SFTP programs use port 22 as default. Make sure your username and password are the same as your host emails username and password (unless you have changed your password).
I've searched around and found that this fork of SharpSSH and SSH.NET are the most up to date and best maintained libraries for SFTP (not to be confused with FTPS) communication in .NET. SSH.NET is a clean .NET 4.0 implementation of the SFTP protocol, and I've used it in a couple of solutions with flying colors and great success.
The original SharpSsh seems to be dead and most other solutions either require installation of Windows executables or a bucketload of cash (or worse; both).
We use WinSCP. Its free. Its not a lib, but has a well documented and full featured command line interface that you can use with Process.Start.
Update: with v.5.0, WinSCP has a .NET wrapper library to the scripting layer of WinSCP.
Check this out: http://www.tamirgal.com/home/dev.aspx?Item=sharpSsh
SharpSSH is a pure .NET implementation of the SSH2 client protocol suite. It provides an API for communication with SSH servers and can be integrated into any .NET application.
The library is a C# port of the JSch project from JCraft Inc. and is released under BSD style license.
SharpSSH allows you to read/write data and transfer files over SSH channels using an API similar to JSch's API. In addition, it provides some additional wrapper classes which offer even simpler abstraction for SSH communication.
SharpSSH project page at source forge: http://sourceforge.net/projects/sharpssh
We bought a Rebex File Transfer Pack, and all is fine. The API is easy, we haven't any problem with comunications, proxy servers etc...
But I havent chance to compare it with another SFTP/FTPS component.
Bitvise has a great product called Tunnelier which can bridge FTP to SFTP. You could then use the standard FtpWebRequest in .NET.
http://www.bitvise.com/ftp-bridge
I am currently testing this for my own purposes and will update with my findings.
This idea is not ideal for unattended automation, unless you want to jump through hoops keeping the client connected as a service or something, which I accomplished by using NSSM.
I've tried CLI automation with various clients including bitvise and winscp.com. I've also tried these .net class libraries: Winscp, SSH.NET, SharpSSH, and the commercial SecureBlackBox SFTP client.
SecureBlackBox worked well, but it's very heavy-weight, can be quite expensive depending on the licensing, and I didn't agree so much with it's API.
Hands down, the best free sftp client for .NET development is winscp. I've written a few classes and extension methods to make working with it easier: Winscp.Extensions
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With