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Question:

SFTP Connection fail

Sep 26 '14 at 12:44

Hi,

I am trying to connect SFTP server, but getting below error.

Unable to agree upon server-to-client encryption algorithm. Unable to agree upon client-to-server encryption algorithm.

Please let me know the solution if anybody saw this issue before.

Connect_SFtp: DllDate: Apr 14 2012 UnlockPrefix: TS3SERSSH Username: IHOST-UAT6:SvcDataExport Architecture: Little Endian; 32-bit Language: .NET 4.0 SftpVersion: 0 hostname: 103.20.137.52 port: 22 ConnectTimeoutMs_1: 5000 calling ConnectSocket2 IPV6 enabled connect with NO heartbeat. This is an IPV4 numeric address... AddrInfoList: AddrInfo: ai_flags: 4 ai_family: 2 ai_socktype: 1 ai_protocol: 0 ai_addrlen: 16 ai_canonname: (NULL) --AddrInfo --AddrInfoList Connect using IPV4. ipAddress1: 103.20.137.52 myIP_3: 10.172.1.21 myPort_3: 63114 connect successful (2) Established TCP/IP connection with SSH server clientIdentifier: SSH-2.0-PuTTY_Local:_May_11_2009_17:22:38 Sending client identifier... Done sending client identifier. Reading server version... initialDataFromSshServer: SSH-2.0-OpenSSH_5.3

serverVersion: SSH-2.0-OpenSSH_5.3
KeyExchangeAlgs:
  algorithm: diffie-hellman-group-exchange-sha256
  algorithm: diffie-hellman-group-exchange-sha1
  algorithm: diffie-hellman-group14-sha1
  algorithm: diffie-hellman-group1-sha1
--KeyExchangeAlgs
HostKeyAlgs:
  algorithm: ssh-rsa
  algorithm: ssh-dss
--HostKeyAlgs
EncCS:
  algorithm: aes128-ctr
  algorithm: aes192-ctr
  algorithm: aes256-ctr
--EncCS
EncSC:
  algorithm: aes128-ctr
  algorithm: aes192-ctr
  algorithm: aes256-ctr
--EncSC
MacCS:
  algorithm: hmac-md5
  algorithm: hmac-sha1
  algorithm: umac-64@openssh.com
  algorithm: hmac-sha2-256
  algorithm: hmac-sha2-512
  algorithm: hmac-ripemd160
  algorithm: hmac-ripemd160@openssh.com
  algorithm: hmac-sha1-96
  algorithm: hmac-md5-96
--MacCS
MacSC:
  algorithm: hmac-md5
  algorithm: hmac-sha1
  algorithm: umac-64@openssh.com
  algorithm: hmac-sha2-256
  algorithm: hmac-sha2-512
  algorithm: hmac-ripemd160
  algorithm: hmac-ripemd160@openssh.com
  algorithm: hmac-sha1-96
  algorithm: hmac-md5-96
--MacSC
CompCS:
  algorithm: none
  algorithm: zlib@openssh.com
--CompCS
CompSC:
  algorithm: none
  algorithm: zlib@openssh.com
--CompSC
Unable to agree upon server-to-client encryption algorithm.
Unable to agree upon client-to-server encryption algorithm.
MAC: HMAC-SHA1
MAC: HMAC-SHA1
Compression: none
Compression: none
Key Exchange: DH Group Exchange SHA256
Host Key Algorithm: DSS
numBits: 128
pbits: 1024
Using GEX Group.
Sending KEX_DH_GEX_REQUEST...
pbits: 1024
numBytesRequested: 8
Connection closed by connected peer.
Failed to read data on SSH connection.
Failed to read KEX_DH_GEX_REQUEST response
Failed.

--Connect_SFtp --ChilkatLog

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Answer

Update to the latest version of Chilkat. This is likely already solved.

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Answer

Thanks, Issue is resolve with latest version of Chilkat dll.