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Valter Silva
Asked: 2013-05-16 05:41:23 +0800 CST

How do know if I can SSH in servers?

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I have over 200 servers, but is hard to keep tracking all of them by some documents, after a while it gets outdated, so to refresh this document, I have to know which servers I can login via SSH. I already create a script which gonna ping through a range of IP address, with this list now I would like to know if I can SSH into them. I was thinking in a combination of sshpass and ssh inside a loop, but wonder if that's the best solution.

Any idea or suggestion ?

linux

2 Answers

  1. Best Answer

    dawud's suggestion is good, you can also pass a list of servers to ssh-keyscan to scan them and log the server's public key.

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  2. Use some monitoring program like Nagios for this instead of writing your own scripts. It will alert you if some server goes down.

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