Stop Brute Force Attack on SSH

Howard Chu hyc@highlandsun.com
Mon Feb 18 01:54:00 GMT 2008


Kyle Dawson wrote:
> How can I stop attacks on my ssh demon?   I see thousands of attempts every
> day.  I have, I believe good password policy but since I have clients,  not
> 100% sure.  Is there some config that  I can set?  One ip address comes in
> and tries for a day or so.  Can it see that it is the same ip and just
> deny?  Any tools that can help?

I see the same thing once in a while. I've wanted an option for this as well. 
Sometimes I black-hole the offending IP address so I don't have to see the 
failures in the log files any more.

In the meantime, I just disable password-based logins, and require everyone to 
use a public key.

-- 
   -- Howard Chu
   Chief Architect, Symas Corp.  http://www.symas.com
   Director, Highland Sun        http://highlandsun.com/hyc/
   Chief Architect, OpenLDAP     http://www.openldap.org/project/

--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/



More information about the Cygwin mailing list