> -----Original Message----- > From: centos-bounces at centos.org > [mailto:centos-bounces at centos.org] On Behalf Of Christopher Chan > Sent: Monday, July 05, 2010 8:42 PM > To: centos at centos.org > Subject: Re: [CentOS] DNS or firewall problem > > On Tuesday, July 06, 2010 08:12 AM, Thomas Dukes wrote: > > > > > >> -----Original Message----- > >> From: centos-bounces at centos.org > >> [mailto:centos-bounces at centos.org] On Behalf Of Cliff > >> Sent: Monday, July 05, 2010 8:05 PM > >> To: CentOS mailing list > >> Subject: Re: [CentOS] DNS or firewall problem > >> > >> Do u have ipv4 forwarding on in your /etc/syscttl > >> > >> Sent from my iPhone > > > > Uhhh, in /etc/sysctl.conf, > > > > net.ipv4.conf.ip_forward = 0 ?? > > > > change to = 1 ?? > > Are you running a proxy for http? It would be rather > surprising that internal machines can access the Internet > without forwarding turned on otherwise. When you say internal > machines cannot access your server, are they connecting to it > via the local interface's ip or the Internet ip? > Are the services bound to the local interface? I did notice today there is a squid.conf file in my /etc/httpd/conf.d directory. It appears it is configure for the local domain only. I renamed it and restarted apache but that didn't work. The server has two nics, one for internet and one for the local network, connected to a switch. eth0 is connected to the uplink port.