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We are using these ssh configurations
based loosely on these recommendations
- http://thinkhole.org/wp/2006/10/30/five-steps-to-a-more-secure-ssh/
- http://www.mysql-apache-php.com/ssh-attacks.htm
- http://samcaldwell.net/index.php/technical-articles/3-how-to-articles/39-how-do-i-secure-ssh-properly
We store all of our SSH users and their public keys in an internal secure location.
First, swith to root.
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$ su - root
...
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The sshd_config gets deployed to this path:
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/etc/ssh/sshd_config
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on each linux box.
Make sure no on has read/write on sshd_config except root.
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chmod og-rw /etc/ssh/sshd_config
chmod u+rw /etc/ssh/sshd_config
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And be sure to restart the sshd server for the changes to take effect.
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service sshd restart
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