Re: Ideas for stopping ssh brute force attacks

["Lanny Marcus" <lmmailinglists@xxxxxxxxx>]

On Mon, Jul 21, 2008 at 3:43 PM, Bo Lynch <blynch@xxxxxxxxxxxxxxxxx> wrote:
> just wanted to get some feedback from the community. Over the last few
> days I have noticed my web server and email box have attempted to ssh'd to
> using weird names like admin,appuser,nobody,etc.... None of these are
> valid users. I know that I can block sshd all together with iptables but
> that will not work for us. I did a little research on google and found
> programs like sshguard and sshdfilter. Just wanted to know if anyone had
> any experience with anything like these programs or have any other advice.
> I really appreciate it.

Possibly begin by not allowing root access. Don't use passwords, use keys.

http://wiki.centos.org/TipsAndTricks/SshTips/SshKeyAuthentication
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