ssh timeout

[dandan123]

I'm running a script which collects information from servers -

ssh <hostname> command

This is taking a long time to complete ( 4000 + servers ) as if a server is offline then ssh takes a long time to timeout.

Is there anyway to change this timeout period without modifying the config files for ssh ?

TIA

 

[bluedragon2]

Look in the man page for the -o ConnectTimeout option

[Blue]Blue[/Blue] [Dragon]

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[elgrandeperro]

Add it into your ~/.ssh/config. It must be read/write only to you. Read "man ssh_config".
like this:
ConnectTimeout 2

 

[AvayaTier3]

That will work on Linux but not Solaris 10


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35 years Bell, AT&T, Lucent, Avaya
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[dandan123]

I run my scripts as root, If I modify anything it will affect all the other sysadmins which is why changing configs or adding anything to the home directory is ruled out.

I guess I'll have to turn to scripting to see if I can fork off a process which will kill the ssh session if it takes too long.

 

[elgrandeperro]

I would always just run a ping test before the ssh, just to verify the host's "upness".