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notageek
Tux's lil' helper
Joined: 05 Jun 2008
Posts: 131
Location: MA, USA
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 Posted: Tue Feb 12, 2013 1:15 pm Post subject: ssh help needed |
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I'm doing:
| Code: | | ssh -a -l notroot host1.domain.com ssh -l root host2.domain.com 'cmd1 ; cmd2 ; cmd3 ; cmd4' |
I'm expecting cmd1-4 to run on host2 and it does for ssh (client) version: OpenSSH_4.3p2 OpenSSL 0.9.8c 05 Sep 2006 but not for
ssh (client) version : OpenSSH_5.3p1 OpenSSL 0.9.8k 25 Mar 2009
What happens is, the single-quote is removed by the newer version of ssh client, which results in cmd1 being executed on host2, while the rest are executed on host1.
In the version of ssh client that works, the complete command with quotes is transfered, so all commands are executed on host2.
Is there a config that can get me the desired behaviour?
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Do not pray for an easy life, pray for the strength to endure a difficult one. -- Bruce Lee |
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Bones McCracker
Veteran
Joined: 14 Mar 2006
Posts: 1590
Location: U.S.A.
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| Posted: Tue Feb 12, 2013 3:21 pm Post subject: |
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I don't know. I would try:
| Code: | | ssh -a -l notroot host1.domain.com "ssh -l root host2.domain.com 'cmd1 ; cmd2 ; cmd3 ; cmd4'" |
Or try:
| Code: | | ssh -a -l notroot host1.domain.com ssh -l root host2.domain.com \'cmd1 ; cmd2 ; cmd3 ; cmd4\' |
Or try:
| Code: | ssh -a -l notroot host1.domain.com <<\EOF
ssh -l root host2.domain.com 'cmd1 ; cmd2 ; cmd3 ; cmd4'
EOF |
Also, possibly try using the -t option in the first connection.
And all the various combinations thereof. 
Last edited by Bones McCracker on Tue Feb 12, 2013 3:27 pm; edited 1 time in total |
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notageek
Tux's lil' helper
Joined: 05 Jun 2008
Posts: 131
Location: MA, USA
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| Posted: Tue Feb 12, 2013 3:26 pm Post subject: |
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I have tried the last two and the -t, I haven't tried the first one. I'll try that out.
Thanks.
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Do not pray for an easy life, pray for the strength to endure a difficult one. -- Bruce Lee |
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MustrumR
n00b
Joined: 15 Nov 2011
Posts: 71
Location: Right here
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| Posted: Tue Feb 12, 2013 5:32 pm Post subject: |
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You can almost always open an ssh tunnel and use it.
| Code: | ssh -a -l notroot host1.domain.com -L12345:host2.domain.com:22 -T &
ssh -a -p 12345 -l root 127.0.0.1 -t "cmd1 ; cmd2 ; cmd3 ; cmd4" |
The first command opens a tunnel - localhost:12345 through host1.domain.com to host2.domain.com:22
The second one connects through that tunnel and executes the commands. |
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notageek
Tux's lil' helper
Joined: 05 Jun 2008
Posts: 131
Location: MA, USA
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| Posted: Tue Feb 12, 2013 6:38 pm Post subject: |
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Thanks.
_________________
Do not pray for an easy life, pray for the strength to endure a difficult one. -- Bruce Lee |
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szczerb
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Joined: 24 Feb 2007
Posts: 1690
Location: Poland => Lodz
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| Posted: Tue Feb 12, 2013 8:09 pm Post subject: |
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I onced found a need to pipe over two ssh connections. As I understand your case is a bit simpler, so take a look at that. | Code: | | cat something.tar.gz | ssh user@host1 "ssh user@host2 'tar -xzf - -C /some/path/; chown -R user:group /some/path'" |
The thing is that passwordless login was set between host1 and host2. |
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