Date: Wed, 30 May 2012 13:47:34 -0500 From: Jorge Biquez <jbiquez@intranet.com.mx> To: Robert Bonomi <bonomi@mail.r-bonomi.com> Cc: freebsd-questions@freebsd.org Subject: Re: Firewall, blocking POP3 Message-ID: <3421248490-1670043744@intranet.com.mx> In-Reply-To: <201205301832.q4UIW3Io017126@mail.r-bonomi.com> References: <3421246151-1670043725@intranet.com.mx> <201205301832.q4UIW3Io017126@mail.r-bonomi.com>
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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 owner-freebsd-questions@freebsd.org Wed May 30 13:16:37 2012 > > Date: Wed, 30 May 2012 13:08:30 -0500 > > To: freebsd-questions@freebsd.org > > From: Jorge Biquez <jbiquez@intranet.com.mx> > > 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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