Mosh hangs during connection to the server in AIX

[sumitradawn]

Hello community members,

We are experiencing an issue where Mosh hangs during connection to the server in AIX using the command:

mosh root@server_name

The connection proceeds correctly when connecting to localhost or to remote systems without password protection—in these cases, the Mosh session starts successfully, and we can see the shell prompt.

However, when attempting to connect to a password-protected server, the session hangs with no further interaction possible.

The process tree is as shown below:

#proctree 20382124
2687330    /usr/sbin/srcmstr
   9371960    sshd: /usr/sbin/sshd -D [listener] 0 of 10-100 startups
      19136866    sshd: root@pts/4
         20185538    -ksh
            14877164    bash
               20119814    perl /opt/freeware/bin/mosh root@aixoss1-lp8.pok.stglabs.ibm.com
                  20382124    ssh -n -tt -S none -o ProxyCommand='/opt/freeware/bin/mosh' '--family=prefer-in
                     13893910    perl /opt/freeware/bin/mosh --family=prefer-inet --fake-proxy -- aixoss1-lp8.po
                        19202338    perl /opt/freeware/bin/mosh --family=prefer-inet --fake-proxy -- aixoss1-lp8.po ```

[sumitradawn]

Hello community members,

Just checking in to see if anyone has had a chance to review my query. Any insights would be greatly appreciated.
Thank you!

[mitexleo]

The last commit was 2 years ago! I think it's no longer being maintained.

[achernya]

@sumitradawn we do not have access to any AIX machines, so I am afraid we have no way to reproduce. Can you try (for the sake of debugging) manually running mosh-server and mosh-client to see if this is just an issue with the perl wrapper script?: