root servers list changing?

Matthew Hannigan mlh at zip.com.au
Mon Aug 5 23:09:40 UTC 2002


On Mon, Aug 05, 2002 at 03:28:24AM +0000, Paul Vixie wrote:
> 
> [ get different root server list on different days
>   with nslookup -type=any c.root-servers.net]
> 
> The command you are using is producing results other than what you wanted.

More specifically am I asking a different question than the
one I think I am asking?

Either way, I don't expect it to change from day to day.
I forgot to mention that I also got the message 
     check_root: 1 root servers ater query to root server < min
message for a while.  And I had not changed my dns setup, which
had been working fine.

> You're asking for ANY rrtype known for the C.ROOT-SERVERS.NET name.  Part

> of what you will learn is: "who are the servers for .NET, in case more data
> is needed later?"
> 
> Try this:
> 
> 	dig
> 
> That's right, "dig" with no arguments.
> 
> Nslookup is a bad command, for many reasons, and you should use "dig" for
> all command line DNS lookups unless you prefer "host" which is less general
> but more friendly.

I've read that often enough but it's still not clear to me why
dig is so much better.  Certainly the output is still fairly cryptic
and messy. 

I tried ./dig  and "./dig . any" and get vastly reduced list of root-servers
in the "additional" section for latter.

Well looks like I'll be off to buy the 4th edition of DNS + Bind
today.  I was resisting because I have the 1st edition and I was a little
underwhelmed by it :-(

Thanks for the responses.

Matt


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