On Wed, 10 Feb 2010, David Lord wrote:

> 
> I've not seen this before today but XMail fell
> over during a pop3 password attack.
> 
>      pop3 connections at firewall                
> Feb 10 05:00-06:00     0
> Feb 10 06:00-07:00  1161 
> Feb 10 07:00-08:00  9851
> Feb 10 08:00-09:00   248 
> Feb 10 09:00-10:00     0
> 
> Pop3 log on one server has 4987 entries all 
> "ELOGIN" but nothing else.  Second server on
> network has 3 similar entries from Feb 6.
> 
> Can I just add offending source ip range to spammers.tab
> or is it best to block at firewall?
> 
> I believe firewall can block on connection rate so
> might investigate that.

Firewall is better suited for things like that. That $hit does not even 
bother your server, in that way.


- Davide


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