[CentOS] sshd hack

Jeff Kinz jkinz at kinz.org
Sat Mar 11 16:27:53 UTC 2006


On Sat, Mar 11, 2006 at 10:20:16AM -0500, David Johnston wrote:
> I dealt with these attacks by only allowing PubkeyAuthentication.
> 
>  # Authentication types
> PubkeyAuthentication yes
> AuthorizedKeysFile      .ssh/authorized_keys
> PasswordAuthentication no
> ChallengeResponseAuthentication no
> 
> This requires you to put your public key in .ssh/authorized_keys on
> remote servers.  Make sure it's working before you set
> "PasswordAuthentication no" or you will lock yourself out.

David, I really like the idea of using keys since I believe they are more
resistant to being cracked, but I have one question:

If your ssh keys are in a file on a remote server, does that mean anyone
who has root on that system can use them to gain access to ssh into your home
system?




-- 
Jeff Kinz, Emergent Research, Hudson, MA.
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