[CentOS] DNS in CentOS

[vincenzo romero]

thank you again, more clarification, if anyone can pls shed light ...

>
>  That happens anyway if the forwarder is not authoritative - that is, the
> forwarder will act as a caching proxy.

ok - so my lab.company.com is authoritative, so it should keep a copy
of company.com's information then and be able to respond to queries
even within the domain of company.com?

>
>  It's not really polite to send private IP reverse lookups to the public
> root servers, but I suppose millions of places do...

i'm sorry, but how do i configure (or any pointer pls?) so that I do
not point to the public root servers?  i just followed templates;
whereas, the company.com DNS, I was not the one who configured it.

I think the issues I have encountered are less now....
My questions.

1.  From my lab.company.com DNS server - do I need to update my
/etc/resolv.conf file so that it shows:

search lab.company.com company.com
nameserver 192.168.17.2
nameserver 10.100.1.24

2.  With the above /etc/resolv.conf I can ping forward and backwards
hosts, except - reverse lookup to host within company.com's domain
still shows the root servers .. :(

3.  Strangest and confusing, is performing nslookup FROM
lab.company.com's DNS server :

a.  responds to nslookup company.com:
nslookup 192.168.17.1
Server:         127.0.0.1
Address:        127.0.0.1#53

1.17.168.192.in-addr.arpa       name = qatest1.lab.maxiscale.com.

[root at myhost named]# nslookup maxiscale.com
Server:         127.0.0.1
Address:        127.0.0.1#53
Non-authoritative answer:
Name:   company.com
Address: 10.100.1.24

BUT it can't find an answer for ITS OWN domain:

 nslookup lab.company.com
Server:         127.0.0.1
Address:        127.0.0.1#53

*** Can't find lab.company.com: No answer

....  I must be missing something in my /var/named configuration
files?  Please advise.

thanks in advance,



from my lab.company.com DNS server

1.  ping/nslookup


>
>  --
>
>   Les Mikesell
>    lesmikesell at gmail.com
>  _______________________________________________
>  CentOS mailing list
>  CentOS at centos.org
>  http://lists.centos.org/mailman/listinfo/centos
>



-- 
best,

Vince