Set up remote access in UNIX through OpenSSH (developerWorks)

Set up remote access in UNIX through OpenSSH (developerWorks)

Posted Feb 19, 2007 20:36 UTC (Mon) by dtucker (subscriber, #6575)
In reply to: Set up remote access in UNIX through OpenSSH (developerWorks) by rasjidw
Parent article: Set up remote access in UNIX through OpenSSH (developerWorks)

> use the command="command" option in the authorized_keys file

You can also use the "from=" key option to restrict where the key can be used from. This makes a stolen key less useful as you need to spoof the source address too; depending on your network this can be anywhere between only a bit more difficult (if you own a box on the same subnet as the real source) to impossible (if you're on the other side of a firewall with strong anti-spoofing policies).

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