How to add secure FTP capabilities to a .NET application

Question

I'm rewriting an in-house client-server application as a .NET MVC application. It needs to send and receive files via secure FTP. The original application was client-server and used MOVEit Freely to do SFTP. Is there a library or product I can use to do it from within .NET?

Answer 1

http://www.enterprisedt.com/products/edtftpnet/overview.html

Answer 2

If you don't want to pay anything, you can easily use the built-in FtpWebRequest for vanilla FTP and FTPES (explicit FTP with SSL). For FTPS (implicit FTP+SSL), I recommend Alex FTPS Client . And finally, for SFTP (FTP over SSH), you can use SharpSSH . This method isn't for everyone - it's really just for the cheap skate. But, I've been using this combo for all my data transfer needs in a production environment and it works great. The products are stale, but the protocols are stable, so who cares.

Answer 3

只需使用内置的FtpWebRequest和FtpWebResponse类。

Answer 4

看看SharpSSH ，我知道他们支持sftp，不知道写服务器端会有多难。

Answer 5

我们的Rebex文件传输包支持安全FTP的两种变体 - SFTP和FTPS（FTP / SSL）。

Answer 6

Take a look at edtFTPnet/PRO , which offers full support for SFTP in .NET.

You might also want to take a look at CompleteFTP , which is a fast, compact SFTP server for Windows platforms (it also supports FTP and FTPS).

I might add that using the term "Secure FTP" can be rather confusing. It can mean SFTP, which is a secure file transfer protocol that runs over SSH. Or it can mean FTPS, which is basically standard FTP commands running over an SSL connection.

Answer 7

I was involved in creating MOVEit Freely. It never had support for SFTP over SSH - it only had support for FTP/S. Its original role was to be a "drop-in" command-for-command replacement of Microsoft's FTP.exe client - with extra support for SSL/TLS.

MOVEit Freely was originally built on top of a Dundas FTP/S stack, but we heavily modifed the original source code as FTP/S evolved. (We got in a bit early.) These days Dundas is focused on Dashboard components and the license agreement we signed with Dundas said that we'd never publish a standalone FTP/S component based on their code. (That's standard for that kind of OEM license.) In other words, I'd check out one of the Windows-based recommendations above. (I recommend components from \\n software, and also like the Rebex offering on Windows.)

Answer 8

This is native in .NET. The classes you want resides in the System.Net namespace. Take a look at FtpWebRequest and FtpWebResponse classes. Happy coding :)