[CentOS] Sendmail SMTP Brute-Force Attack

Fri Jun 15 17:24:33 UTC 2012
Nataraj <incoming-centos at rjl.com>

On 06/15/2012 09:33 AM, John R Pierce wrote:
> On 06/15/12 9:25 AM, Shiv. Nath wrote:
>> 1.) install&  configure fail2ban
> each of the connections shown in the log fragment was from a different 
> IP.  how would fail2ban help?

If you were to switch to postfix, I believe that postscreen may be able
to handle this type of spambot attack.
Unless you happen to already be a sendmail guru, my sense is that
postfix is easier to configure to deal with these complex situations.