Server connection failure using version 3.0.5584.0

0 votes
asked Oct 17 by PJ (140 points)

Hi

We have been using this version (I guess it's build 5584 from 2015) for few years. Always worked fine. Few days ago we tried to connect to sftp.lumyna.com and it failed. Output of exception ToString() method is given below. Is it possible to find why it's failing?

Rebex.Net.SftpException: Key exchange failed. Requested service is not implemented. ---> Rebex.Net.SshException: Key exchange failed. Requested service is not implemented. ---> Rebex.Net.SshException: Requested service is not implemented.
at Rebex.Net.SshSession.AZ(Byte[] A, Int32 B, Int32 C)
at Rebex.Net.SshSession.ZY(Byte[] A, Int32 B, Int32 C)
at Rebex.Net.SshSession.YY(NGB A, Object[] B)
at Rebex.Net.SshSession.CZ(IGB A)
at Rebex.Net.LGB.D(SshSession A, Byte[] B, Byte[] C, Byte[] D, Byte[] I, Byte[]& J, Byte[]& L, SshPublicKey& M)
at Rebex.Net.SshSession.EZ(Byte[] A)
--- End of inner exception stack trace ---
at Rebex.Net.SshSession.EZ(Byte[] A)
at Rebex.Net.SshSession.DZ()
at Rebex.Net.SshSession.Negotiate()
at Rebex.Net.Sftp.MNB.EZ(XMB A)
at Rebex.Net.Sftp.BN(String A, Int32 B, SshParameters C, XMB D)
--- End of inner exception stack trace ---
at Rebex.Net.Sftp.BN(String A, Int32 B, SshParameters C, XMB D)
at Rebex.Net.Sftp.AN(String A, Int32 B, SshParameters C)
at Rebex.Net.FileTransferClient.Connect(String serverName, Int32 serverPort, FileTransferMode transferMode)

Thanks
PJ

Applies to: Rebex SFTP

1 Answer

0 votes
answered Oct 18 by Lukas Pokorny (103,170 points)

Hi,

This is most likely a known issue when using older versions of Rebex SFTP with contemporary servers. See our answer here for details and a solution:

https://forum.rebex.net/6312/sftpexception-exchange-failed-requested-service-implemented?show=6313#a6313

commented Oct 18 by PJ (140 points)
Hi Lukas, thank you for the reply. I downloaded latest trial version and it's working.
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