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Old 03-31-2011, 04:38 AM   #1
amuhamed
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Registered: Mar 2011
Location: Kenya
Distribution: RHEL
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How can I stop Pop3 Brute Force attacks


Hello people,

I'm pretty new with Linux, and have a mail server running RHEL, with postfix, dovecot, etc.

I installed Fail2ban and this works wonders against SSH brute force attacks. It'll ban an IP address for a period of time if it unsuccessfully attempts to log on 3 times within, say a minute.

I was wondering if it can be as effective with pop3 attacks. If it is, how can I get it done?

Thank you.
 
Old 03-31-2011, 04:45 AM   #2
repo
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Registered: May 2001
Location: Belgium
Distribution: Arch
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You need to create a regex, and add it to fail2ban
Here is a guide.
http://www.computersolutions.cn/blog...pmail-attacks/

Kind regards
 
  


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