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Posted to dev@mina.apache.org by "Lyor Goldstein (Jira)" <ji...@apache.org> on 2021/11/20 07:05:00 UTC
[jira] [Closed] (SSHD-958) sshd (openssh5) closes connection on mina ssh client after pkt 50, but not ssh
[ https://issues.apache.org/jira/browse/SSHD-958?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Lyor Goldstein closed SSHD-958.
-------------------------------
Resolution: Abandoned
> sshd (openssh5) closes connection on mina ssh client after pkt 50, but not ssh
> ------------------------------------------------------------------------------
>
> Key: SSHD-958
> URL: https://issues.apache.org/jira/browse/SSHD-958
> Project: MINA SSHD
> Issue Type: Improvement
> Reporter: Yuefeng
> Assignee: Lyor Goldstein
> Priority: Minor
> Labels: need-more-info
>
> Using mina ssh library to connect to a system, but the system always closes connection at the following stage:
> {code:java}
> 2019-12-09 21:03:08 Z [pool-123195-thread-1] DEBUG org.apache.sshd.client.session.ClientUserAuthService: auth(ClientSessionImpl[XXXXXXXX])[ssh-connection] send SSH_MSG_USERAUTH_REQUEST for 'none'
> 2019-12-09 21:03:08 Z [pool-123195-thread-1] DEBUG org.apache.sshd.client.session.ClientSessionImpl: writePacket(ClientSessionImpl[XXXXXXXXX])[SSH_MSG_USERAUTH_REQUEST] Start flagging packets as pending until key exchange is done
> 2019-12-09 21:03:09 Z [pool-123195-thread-1] DEBUG org.apache.sshd.client.session.ClientSessionImpl: close(ClientSessionImpl[XXXXXXXXXX]) Closing immediately
> 2019-12-09 21:03:09 Z [pool-123195-thread-1] DEBUG org.apache.sshd.client.session.ClientSessionImpl: signalAuthFailure(ClientSessionImpl[XXXXXX]) type=SshException, signalled=false: Session is being closed
> {code}
> when I tried ssh client from the same computer to the same destination, it works. "-vvv" shows that the destination system is
> {code:java}
> debug1: Remote protocol version 2.0, remote software version OpenSSH_5.3 debug1: match: OpenSSH_5.3 pat OpenSSH_5* compat 0x0c000000
> {code}
> openssh lib shows the compat flag
> {code:java}
> { “OpenSSH_5*“, SSH_NEW_OPENSSH|SSH_BUG_DYNAMIC_RPORT| SSH_BUG_SIGTYPE},
> {code}
>
> while "SSH_NEW_OPENSSH" and "SSH_BUG_SIGTYPE" are common, flag SSH_BUG_DYNAMIC_RPORT is specific to OpenSSH_5, and not set anywhere else. Does mina ssh handle OpenSSH_5?
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