Re: [Dovecot] Lots of pop3-logins

2009-06-26 Thread Rodman Frowert
do a failed pop3 auth myself, I show as "Disconnected" but the dictionary attack the other day showed as "Aborted login". Rodman - Original Message - From: "Charles Marcus" Cc: Sent: Friday, June 26, 2009 8:57 AM Subject: Re: [Dovecot] Lots of pop3-logi

Re: [Dovecot] Lots of pop3-logins

2009-06-26 Thread Rodman Frowert
Well concerning my problem, I adjusted fail2ban so that it can parse the maillog and ban IP's that have 6 incorrect pop3 logins. I had another "attack" last night, but fail2ban got him only have 6 attempts and banned his sorry ass. If anyone wants to see the fail2ban config file I am using fo

Re: [Dovecot] Lots of pop3-logins

2009-06-25 Thread Rodman Frowert
I'll go ahead and lower that limit to something that fits my usage better. Thanks Timo! You built a hell of a mail server. Rodman - Original Message - From: "Timo Sirainen" To: "Rodman Frowert" Cc: Sent: Thursday, June 25, 2009 2:46 PM Subject: Re: [Dovecot] Lots of pop3-logins

Re: [Dovecot] Lots of pop3-logins

2009-06-25 Thread Rodman Frowert
Well, after going through my log files, I was hit with a dictionary based attack. My maillog is full of about 20,000 lines of crap like this: Jun 21 23:06:04 mail dovecot: pop3-login: Aborted login (auth failed, 1 attempts): user=, method=PLAIN, rip=68.14.228.186, lip=10.10.11.2 Jun 21 23:06:0

Re: [Dovecot] Lots of pop3-logins

2009-06-25 Thread Rodman Frowert
Jose, Thank you for your reply. Makes me feel better everything is working properly and resources aren't being wasted. Thank you! Rodman - Original Message - From: "Jose Celestino" To: "Rodman Frowert" Cc: Sent: Thursday, June 25, 2009 9:34 AM Subject: R

[Dovecot] Lots of pop3-logins

2009-06-25 Thread Rodman Frowert
Hello, Doing a "ps aux" on my Slackware box, I have approx 100 PID's of "pop3-login's going on. This is a production mail server, but it is getting VERY low traffic. In fact, only 3 people can "pop3" into it. I've check their e-mail clients, and they are not checking mail any more often tha