Try flushing DNS cache: /etc/init.d/nscd restart On Apr 8, 2011, at 3:31 PM, Johan Martinez wrote: This is working fine on another CentOS system. This particular install where host command is failing is trimmed down install using kickstart file. It is working on a system where install is default 'Server non-GUI', option given during interactive CD install. I guess this has to do with some missing package. Any clues?? jM. On Fri, Apr 8, 2011 at 2:01 PM, John R Pierce <pierce at hogranch.com<mailto:pierce at hogranch.com>> wrote: On 04/08/11 11:24 AM, Johan Martinez wrote: > I have modified /etc/hosts file with IP address and hostname entries. > However, host command is returning 'Host vhost1.example.com<http://vhost1.example.com/> > <http://vhost1.example.com<http://vhost1.example.com/>> not found: 3(NXDOMAIN)'. Also, apache is > returning error on start as '[error] (EAI 2)Name or service not known: > Could not resolve host name vhost1.example.com<http://vhost1.example.com/> > <http://vhost1.example.com<http://vhost1.example.com/>> -- ignoring!' . The ssh worked fine and > resolved the hostname correctly (ssh from same system to itself - just > for test). Am I missing something here? I thought /etc/hosts will be > referred for all lookups. Any help?? the 'hosts' command (as well as dig, and nslookup) go directly to DNS, they do not look at /etc/hosts or nsswitch.conf for that matter. Apache may well go to DNS also, since your local /etc/hosts file is not recognized by any systems outside the localhost, and apache IS a server. _______________________________________________ CentOS mailing list CentOS at centos.org<mailto:CentOS at centos.org> http://lists.centos.org/mailman/listinfo/centos _______________________________________________ CentOS mailing list CentOS at centos.org<mailto:CentOS at centos.org> http://lists.centos.org/mailman/listinfo/centos -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos/attachments/20110408/69a94dd7/attachment-0005.html>