[CentOS] protecting multiuser systems from bruteforce sshattacks

Neil Aggarwal neil at JAMMConsulting.com
Fri Aug 21 01:57:20 UTC 2009

> As an additional question to the above, would forcing users 
> to log in  
> with SSH keys rather than passwords avoid requiring any anti brute  
> force attack measures to be put in place?

You are right, but that is not feasible for most 
shared systems.

Its hard enough to get customers to use SSH,
SFTP, and SCP instead of telnet and FTP.  

Getting them to use keys would be impossible.

Another problem to consider is what other ports
are open on the machine.  Are any of them prone
to brute force attacks?  I don't think you can use
keys for them.


Neil Aggarwal, (281)846-8957, www.JAMMConsulting.com
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