Re: DNS and its IP for Linux

Thanks for your explanation. Just never do this part and no knowledge and
experience.

I just answer one email regarding to question why I asked a particular name.
I assume that I need some sort of DNS name for a domain, then set up a
virtual domain at the server.

HL

----- Original Message -----
From: "Eric Koldeweij" <[email protected]>
To: <[email protected]>
Sent: Sunday, May 25, 2003 4:53 PM
Subject: Re: DNS and its IP for Linux


> HL wrote:
>
> >Thanks for help.
> >
> >When I type command "cat /etc/resolv.conf" and find two IPs, but the
server
> >doesn't have specific name server such as ns1.xxx.com and ns2.xxx.com ...
?
> >How could I have specific name server with respective IPs ?
> >
>
> Uhmm..... If you think about it it'll come to you I'm sure :)
> No? OK... To translate names into IP numbers you have to know where your
> nameserver is to be found. Therefore the resolv.conf is consulted, to
> find the name servers. If you'd put a name (like ns.mydomain.com) in
> there it'd need to resolve that name first. So it consults resolv.conf,
> finds a name there, and the story never ends :)
>
> Why would you want to find ns.xxx.com there anyway? In resolv.conf are
> IP addresses of valid nameservers. It does absolutely *NOT* matter WHICH
> name servers they are, as long as they accept queries (requests) from
> clients. There are zillions of those on the Net. You can pick any one
> you want, though it's probably best (fastest) to use the name servers
> your administrator/ISP provides for you.
>
> I think you do not grasp the difference between name servers and name
> resolution. Name resolution is done by clients (non-nameservers) and it
> is done by the client asking a nameserver to translate a name into a
> number (or vice versa). It is done for every address not just the ones
> in your domain, and you don't need to run a name server yourself to have
> those addresses translated.
>
> I recommend reading material on it like the DNS-Howto or the masterpiece
> book "DNS and Bind" (ISBN 0-596-00158-4)
>
> Eric.
>
>
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