Hello, Am running Bind 9 in Cent OS 5.1. I have a DNS server, that: - DNS server to hosts in lab.company.com - 192.168.17.x - forwards query to company.com - 10.100.x.x. Problem: 1. FQDN and by-IP-address ping and nslookup is successful. 2. ping/nslookup by host-name-only --- from any 192.168.17.x hosts to any 10.100.x.x hosts fail and vice versa. I have setup the DNS of lab.company.com - to forward query to the DNS server of 10.100.x.x.hosts through the /etc/named.conf - options { listen-on port 53 { 127.0.0.1; 10.100.1.5; }; forwarders { 10.100.1.5 port 53; }; What tools/logs can I check to troubleshoot this? should I be configuring this as a forwarder or should I configure my DNS as a subdomain to the company.com DNS? pls advise. -- best, Vince _______________________________________________ CentOS mailing list CentOS@xxxxxxxxxx http://lists.centos.org/mailman/listinfo/centos