DNS server config
From: jab3 (manual_at_helpdesk.org)
Date: 09/22/04
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Date: Tue, 21 Sep 2004 18:49:21 -0400
Hello all -
I am trying to learn about network admin configurations and upkeep/etc., and
so I've begun with setting up my own DNS server (reading TCP/IP Network
Administration, O'Reilly). I have a couple of questions, though.
(surprise) If I make up my own TLD (one that is not currently in use),
will that be transferred to the root servers as a new TLD? Will it mess
things up with the root servers or any other NS? I originally made the
TLD .mg and when I ran named, I also ran tcpdump after it and there was a
whole lot of activity between all the different root servers and my box.
So I killed the named process, found out that .mg is a real TLD and then
changed it to something else (4 letters) that is not used. Now when I run
named, there is not all of that traffic. But I still wonder if it is legal
to to this.
Also, there is a bit of a delay when pinging a new host. The delay is
longer than before when I used my ISP's NS as my primary server. Is this
because the ISP had many of the hostnames cached already? I thought it
would be normal for my box to query the root server for the TLD, then query
the TLD for the authority of that subdomain, then query that subdomain for
the actual host address (sort of). There seems to be a lot of querying and
back-and-forth from looking at the ethereal sniffed packets. After I've
had the server up for a bit, will it go faster, or do I perhaps have it
configured wrong? (in which case I can provied relevant sections)
Sorry if this is not very complete, my wife and I are late for a meeting
with some friends. My main concern is whether I will be screwing with the
DNS info around the net because I'm using a made-up TLD. And if I can
prevent my box from distributing this information. Or else, how do you run
your own name server if all you have is one IP from your ISP and you're
using RFC 1918 addresses, just trying to learn instead of registering a
real domain?
Thanks for any help (and not too much laughing :))
-jab3
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