Date: Tue, 25 Nov 2003 23:23:11 -0800 (PST) From: Dirk-Willem van Gulik <dirkx@webweaving.org> To: Grant Peel <grant@thenetnow.com> Cc: freebsd-questions@freebsd.org Subject: Re: Block IP Message-ID: <20031125232021.T66019@skutsje.san.webweaving.org> In-Reply-To: <00c001c3b3a9$9d7fa8e0$6401a8c0@grant> References: <00c001c3b3a9$9d7fa8e0$6401a8c0@grant>
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On Tue, 25 Nov 2003, Grant Peel wrote: > Can I block a certain IP address at the machine or interface level using > freebsd? (No at the Apache or Sendmail level). > > CyberLaert monioting one of my hosts at the rate of 1.2 GB oer day! Easiest and quickest is to install the firewall - if it is not already in your kernel, simply load it as a dynamic module. In a pinch (and if the person causing problem is doing this by accident) you can try something like "route add 12.34.56.78/32 127.0.0.1" which will make the tcp handshake break. Which may cause the other end to realize somethign is amiss. But it does not really stop the traffic. Dw
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