Yuefeng created SSHD-958:
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Summary: 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: Bug
Reporter: Yuefeng
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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