Why I am getting below error on connecting to sftp server via Rebex?

Question

I have generated a private key and public key pair.I am trying to authenticate via a sftp server tool

            // connect to a server and verify fingerprint
            var client = new Sftp();
            client.Connect("Test-222");

            // load the private key
            SshPrivateKey privateKey = new SshPrivateKey(@"\\Test-222\Alex\MyData\my_key.ppk", "key_password");

            // log in
            client.Login(username, privateKey);

No suitable authentication method is supported. Supported methods: 'password'.

Answer 1

The private key authentication is not accepted by your SFTP server because your SFTP server is configured to only accept password authentication. You'll neeed to enable private/public key authentication at your server first. An exact way to do this depends on the server type. Please consult your SFTP server vendor.

Comments

I am using sftp  server tool exe. How to test the same in this before making it on a certified sftp server?

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Do you mean Rebex Tiny Sftp server? https://www.rebex.net/tiny-sftp-server/

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I am using Core FTP mini SFTP server

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I tried with Rebex Tiny SFTP Server. I am able to connect on passing username and password. Also possible by passing username,password and privatekey.
client.Login(username,password);
 client.Login(username,password,privateKey);

         
But issue occurs on passing username and private key.
client.Login(username,privateKey);
No suitable authentication method is supported. Supported methods: 'password,keyboard-interactive'.

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Hello, please download the newer beta version of Rebex Tiny Sftp server that now supports user public key authorization from http://www.rebex.net/getfile/3b5706c03fb440b7a3a4db722891e02e/RebexTinySftpServer-with-public-key-auth-Bin.zip and give it a try.

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it is working with private key authentication.I want the source code for the mentioned beta version of SFTP Tool.

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Source code is available at http://www.rebex.net/getfile/db2f63683f1f43e0bb93d18c89f35b9f/RebexTinySftpServer-with-public-key-auth-Src.zip