Date: Mon, 6 Nov 2000 17:11:02 +0100 (CET) From: Maarten van Schie <AnEra@dds.nl> To: David Kelly <dkelly@hiwaay.net> Cc: stable@FreeBSD.ORG Subject: Re: Strange latency? Was: 4.1.1-Stable Message-ID: <Pine.BSF.4.21.0011061626170.271-100000@oT.o8.com> In-Reply-To: <200011052249.eA5Mn0S61355@grumpy.dyndns.org>
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On Sun, 5 Nov 2000, David Kelly wrote: > Maarten van Schie writes: > > I think you missed something, root uses Pine(just local) and users use it > > remote(iaw log in to their respective servers), so AFAIK root does not > > need to do DNS requests. > > Whether it *needs* to do a DNS or not is beside the point. The > conclusion is that it appears to be doing a DNS lookup. Could be for > nothing more than an IP address of the local machine. That will be for it's NIC's MAC adress. > How responsive is "nslookup"? Well, just because it looks something up > fast is no good measure, but if you can find something it might lookup > slow that should be fast then you've found a clue. How fast does it > lookup your oT machine and the others on the local net? > > Wonder if your DNS servers don't know oT and are not authoratative for > oT's domain so they go looking upstream DNS servers rather than return > an instant "Not Found". As you say in an earlier message o8.com is a > non-existent domain. So such a lookup has to go all the way to the root > domain servers before that is discovered. > Well, other facts, which I've given earlier: I'm situated within my home LAN, attached to my ISP's cable network. In this LAN are 7 systems present of which 1 is the internet gateway. All other systems than mine do not have the problem I have so it's located inside my(this) system. My LAN is not an official one, so the DNSes do not know it. I was told that it didn't realy matter what kind of name you should give your system...but I just found out o8.com is registered by Tucows.. May that be the problem? Yesterday someone told me to tcpdump and see what goes on between my box and others. It seemed to me that my DNSes are having trouble fetching my NIC's MAC adress..in other words that it's malfunctioning. So I installed another one, without results :( Maarten. > -- > David Kelly N4HHE, dkelly@hiwaay.net > ===================================================================== > The human mind ordinarily operates at only ten percent of its > capacity -- the rest is overhead for the operating system. > > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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