i've got a strange problem. there is a domain name eg. xyz.com i cannot resolve it through my dns but can be resolved from other opendns. my dns can resolve all other domain hosted on the same server but not this particular domain. whenever i restart the service it works for limited time, but again same problem both from primary and secondary dns. if the dns resolve xyz.com, it doesn't lookup www.xyz.com or mail.xyz.com or vice versa. i am very confused on this matter and got no idea what is goin on. please help!!!

Hi,

Do you have BIND configured, can you show it to us?
Show us your zone configurations too.

my named.conf


//
// named.caching-nameserver.conf
//
// Provided by Red Hat caching-nameserver package to configure the
// ISC BIND named(8) DNS server as a caching only nameserver
// (as a localhost DNS resolver only).
//
// See /usr/share/doc/bind*/sample/ for example named configuration files.
//
// DO NOT EDIT THIS FILE - use system-config-bind or an editor
// to create named.conf - edits to this file will be lost on
// caching-nameserver package upgrade.
//
options {
# listen-on port 53 { 127.0.0.1; 192.168.20.20; }; //192.168.20.20 is secondary DNS
directory "/var/named";
dump-file "/var/named/data/cache_dump.db";
statistics-file "/var/named/data/named_stats.txt";
memstatistics-file "/var/named/data/named_mem_stats.txt";
allow-transfer { 192.168.20.20; };
allow-query { mylan; };
allow-recursion { mylan; };
notify no;
transfer-format many-answers;
interface-interval 0;
max-transfer-time-in 60;
version "Not Available";
};
logging {
channel default_debug {
file "data/named.run";
severity dynamic;
};
};
include "/etc/named.rfc1912.zones";
acl mylan {
192.168.0.0/24;
172.16.100.0/24;
172.18.100.0/24;
172.19.100.0/24;
127.0.0.1;
};


which zone are you talking about? is it the xyz.com? i don have access to the dns of xyz.com.

hi,

yes, the zone "xyz.com" is probably registered and configured somewhere else (on other DNS server), which your server does not have access to.

What is the role of your server (DNS master, caching only ...) whereas do you 'host' domains on your server (bind)?

I can only point you to DNS-HOWTO or bind9_and_caching_nameserver ( or google search)

or start configuring DNS server from the start (how-to-setup-a-dns-server-on-centos-5 or HOWTO_Configuring_DNS / domain-name-server) as I can't say where the problem is, maybe someone else could find more.

Thanks i'll check all the links.

I am looking forward to solve the problem.