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