Date: Fri, 9 Jan 1998 14:38:32 -0800 (PST) From: Kwoody <kwoody@citytel.net> To: Khetan Gajjar <khetan@iafrica.com> Cc: freebsd-questions <freebsd-questions@FreeBSD.ORG> Subject: Re: Sendmail... Message-ID: <Pine.BSF.3.91.980109142928.1571C-100000@mybsd.net> In-Reply-To: <Pine.BSF.3.96.980108211211.2322e-100000@chain>
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On Thu, 8 Jan 1998, Khetan Gajjar wrote: > >I'm assuming its a DNS lookup also, but Ive been too lazy to learn > >dfilters to block a lookup. > > set dfilter 0 deny udp src eq 53 > set dfilter 1 deny udp dst eq 53 > > from /etc/ppp/ppp.conf.filter.sample Sheesh, easy enough to do. Think I mostly thought it was "hard" :) Only thing is now that I think about it is I have a 95 box running RC5 and when it runs out of buffers to process it will send a DNS request to my FreeBSD machine and then ppp dials out and establishes a connection to flush the completeted blocks, and get new ones. By blocking a DNS request like this I would think that now it wont work automatically. My FreeBSD machine works the same way. I have RC5 running as a process also. So to block a DNS request for certain things but not for others from specific clients would be what I want to do. Any input there? 95 box on 192.168.0.1, freebsd on 192.168.0., freebsd is a configed as a gateway. But I'll start digging through the appropriate man pages etc to see if I can get this one. Thanks, Keith
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