Date: Fri, 4 Mar 2011 19:30:37 -0500 From: Outback Dingo <outbackdingo@gmail.com> To: Patrick Gibson <gibblertron@gmail.com> Cc: Jorge Biquez <jbiquez@intranet.com.mx>, Gary Gatten <Ggatten@waddell.com>, "freebsd-questions@freebsd.org" <freebsd-questions@freebsd.org> Subject: Re: Simplest way to deny access to a class C Message-ID: <AANLkTi=UVGXoRg310mZMa-kU3gVThPzXxOTz-RhBfdes@mail.gmail.com> In-Reply-To: <AANLkTi=619ih7aP8ic_rTqFWVmk_P2Zrob=XJUsvLfHL@mail.gmail.com> References: <3382016411-764985335@intranet.com.mx> <AANLkTi=Fb_CiA76g79ZkP8o_yWsQcN6iuPD7w=dBxztQ@mail.gmail.com> <11805_1299196962_4D702C22_11805_70_1_D9B37353831173459FDAA836D3B43499BD354A48@WADPMBXV0.waddell.com> <AANLkTi=619ih7aP8ic_rTqFWVmk_P2Zrob=XJUsvLfHL@mail.gmail.com>
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On Fri, Mar 4, 2011 at 7:14 PM, Patrick Gibson <gibblertron@gmail.com>wrote: > fail2ban by default only bans an IP for 10 minutes, and that's > configurable. It can also email you anytime it imposes a ban, so one > can keep an eye on things at least in the beginning to see if it's > causing a problem for legitimate users. > > On Thu, Mar 3, 2011 at 4:02 PM, Gary Gatten <Ggatten@waddell.com> wrote: > > Be careful of automated responses. What if someone spoofs IP's of legit > users / customers / whatever and your automated response blocks them? Not > good. > > > > I thought about blocking....well, never mind - might pi$$ someone off and > attract unwanted attention... > > > > -----Original Message----- > > From: owner-freebsd-questions@freebsd.org [mailto: > owner-freebsd-questions@freebsd.org] On Behalf Of Patrick Gibson > > Sent: Thursday, March 03, 2011 5:58 PM > > To: Jorge Biquez > > Cc: freebsd-questions@freebsd.org > > Subject: Re: Simplest way to deny access to a class C > > > > You might consider mod_security (/usr/ports/www/mod_security) which > > can be set up to ban hosts based on behaviour or characteristics. > > > > Or fail2ban (/usr/ports/security/py-fail2ban) is really great, too, in > > that it scans whatever logs you want, and can trigger a block in your > > firewall if enough violating log entries are found within a particular > > period of time. Everything is totally configurable, and there are > > plenty of examples that come with it. > > > > Patrick > > > > > > On Thu, Mar 3, 2011 at 8:59 AM, Jorge Biquez <jbiquez@intranet.com.mx> > wrote: > >> Hello all. > >> > >> I am sorry in advance if this question sounds too stupid. > >> > >> I have a small server for personal use of webpages running: > >> > >> 7.3-PRERELEASE FreeBSD 7.3-PRERELEASE #0 > >> > >> it is working fine , no problem very stable. > >> > >> I just need to block some IP class C address that are always trying to > >> "discover" directories or applications under the web server. They do not > do > >> and can not do anything since this server has nothing installed but i am > >> tired of seeing in the logs all the intents they do every 2-3 seconds. > >> > >> I have not installed any kind of firewall yet. > >> What do you think is the best way to accomplish this task? If possible > the > >> easiest one. I do not want to do anything else but just bloc IP's, at > this > >> moment at least. > I wonder why nobodies mentioned a quite simple method with tcpwrappers and hosts.allow / hosts.deny also > >> > >> Thanks in advance. > >> > >> Jorge Biquez > >> > >> _______________________________________________ > >> freebsd-questions@freebsd.org mailing list > >> http://lists.freebsd.org/mailman/listinfo/freebsd-questions > >> To unsubscribe, send any mail to " > freebsd-questions-unsubscribe@freebsd.org" > >> > > _______________________________________________ > > freebsd-questions@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > > To unsubscribe, send any mail to " > freebsd-questions-unsubscribe@freebsd.org" > > > > > > > > > > > > <font size="1"> > > <div style='border:none;border-bottom:double windowtext > 2.25pt;padding:0in 0in 1.0pt 0in'> > > </div> > > "This email is intended to be reviewed by only the intended recipient > > and may contain information that is privileged and/or confidential. > > If you are not the intended recipient, you are hereby notified that > > any review, use, dissemination, disclosure or copying of this email > > and its attachments, if any, is strictly prohibited. If you have > > received this email in error, please immediately notify the sender by > > return email and delete this email from your system." > > </font> > > > > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to " > freebsd-questions-unsubscribe@freebsd.org" >
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