Date: Tue, 23 Apr 2002 21:47:16 -0700 From: Benjamin Krueger <benjamin@macguire.net> To: "Kevin Kinsey, DaleCo, S.P." <kdk@daleco.biz> Cc: freebsd-questions@freebsd.org Subject: Re: DNS port Number, Protocol Message-ID: <20020423214716.I56505@rain.macguire.net> In-Reply-To: <01f001c1eb49$95de5340$95e2910c@daleco>; from kdk@daleco.biz on Tue, Apr 23, 2002 at 11:36:21PM -0500 References: <004301c1ea4f$21b65d00$6bec910c@daleco> <20020422161736.D52937@rain.macguire.net> <01f001c1eb49$95de5340$95e2910c@daleco>
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* Kevin Kinsey, DaleCo, S.P. (kdk@daleco.biz) [020423 21:36]: > > From: "Benjamin Krueger" <benjamin@macguire.net> > > * Kevin Kinsey, DaleCo, S.P. (kdk@daleco.biz) [020422 16:07]: > > > I've been having some DNS troubles > > > with AT&T wireless (!) and my server. > > > > > > Everyone says my DNS is fine (except > > > AT&T). Some lightning bolt just hit me and > > > I decided to check if upd/53 was open > > > from outside....it isn't. > > > > > > What's the chance that whatever they're > > > using wants upd/53 instead of tcp/53? > > > > > > Kevin Kinsey > > > > Well, considering DNS uses udp 53, and only falls back on tcp 53 for > overly > > large transfers I'd say the chances are pretty good. =) > > > > Can you describe the actual problem you're having? > > > > -- > > Benjamin Krueger > > > New thought is that blocked ICMP echo request > does not allow their server to utilize UDP port > #53 for DNS.....sound likely? > > Kevin Kinsey While blocking ICMP is not always the most clever of ideas, it shouldn't prevent UDP from working. Your best bet here is to pull out your trusty packet sniffer and watch to see if the dns server is recieving any of the packets. -- Benjamin Krueger "Life is far too important a thing ever to talk seriously about." - Oscar Wilde (1854 - 1900) ---------------------------------------------------------------- Send mail w/ subject 'send public key' or query for (0x251A4B18) Fingerprint = A642 F299 C1C1 C828 F186 A851 CFF0 7711 251A 4B18 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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