Hello. Thanks a lot!. Simple an elegant solution.
I just did that and of course it worked.... I just was wondering... what if I need to have the service working BUT want to block those break attemps? IN this and other services. ? My guess is that it is a never ending process? I mean, block one, block another, another, etc?
What the people who has big servers running for hosting services are doing? Or you just have a policy of strng passworrds, server up-todate and let the attemps to try forever?
Thanks for the solution Mr Robert. Jorge Biquez At 01:32 p.m. 30/05/2012, Robert Bonomi wrote:
> From [email protected] Wed May 30 13:16:37 2012 > Date: Wed, 30 May 2012 13:08:30 -0500 > To: [email protected] > From: Jorge Biquez <[email protected]> > Cc: > Subject: Firewall, blocking POP3 > > Hello all. > > I am sorry if the question is too basic. > > I have a personal small machine running > > FreeBSD 7.3-PRERELEASE #0: > > It runs as my web and email server for a cuple of domains. NO clients > no other users have access to it. > > Is there any , easy/faster way to stop POP3 from being working. I am > running qpopper to be able to download emailes. > I decided to use sendmail since only a few accounts are there and I > do not need more but in the last days the server has been under a big > attack where people is trying to guess users and passwords. I am > using a strong schema of passwords so no problem on that but I rather > to be sure . The mail -server- you use is irrelevant to how users retrieve mail. you can use sendmail and qpopper, or sendmail and an IMAP server, or sendmail and webmail app, or postix and qpopper, or exim and qpopper, etc. All you have to do to disable qpopper is edit comment out the line in /etc/inetd.conf, and SIGHUP inetd. To re-enable when you need it, uncomment the line, and SIGHUP inetd again.
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