[JSch-users] Agent forwarding and nohup

[Leis, B. <be...@am...>]

I'm trying to get a scenario working where  I SSH into a intermediary server (via JSCH) and then SSH from there to a final destination. At the same time I want this processing to occur in the background.  Everything works fine until I added the nohup step. I added the -v option and compared the two runs with and without nohup and it appears that the agent forwarding breaks down in this case:

My test command:

nohup ssh -v -f -A -p 22 -o StrictHostKeyChecking=no -o ConnectTimeout=30 -o UserKnownHostsFile=/dev/null -o ChallengeResponseAuthentication=no -o PasswordAuthentication=no -o TCPKeepAlive=yes -o CheckHostIP=no -o ServerAliveInterval=60 10.17.129.3 "bash -c \"touch foo; sleep 10s; touch foo2\""

Without nohup specified I see the following:  The pkalg key is being transferred as expected.

    [junit] line: debug1: Next authentication method: publickey
    [junit] line: debug1: Offering public key:
    [junit] line: debug1: Server accepts key: pkalg ssh-dss blen 433
    [junit] line: debug1: Authentication succeeded (publickey).

With nohup I see the following instead:

debug1: Next authentication method: publickey
debug1: Trying private key: /home/benleis/.ssh/identity
debug1: Trying private key: /home/benleis/.ssh/id_rsa
debug1: Trying private key: /home/benleis/.ssh/id_dsa
debug1: No more authentication methods to try.

Trying this out with ssh from the command line rather than JSCH I see the keys transfer as expected even when using nohup.
Does anyone know what might be going on?

Thanks

Ben



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