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? > > --Eddie > >> >> On Jul 5, 2010, at 7:00 PM, "Thomas Dukes"<tdukes at sc.rr.com> wrote: >> >>> Been working this for over a month now and I'm stumped. >>> >>> Everything was working until the 'crash'. Backup was no >> good so I did >>> a fresh install of centos 5.5. Trying to get things back like they >>> were but its been a really long time since I had to set >> things up from >>> scratch, Redhat 2.0. >>> >>> My centos server acts as a gateway/firewall/router for my home >>> network. >>> Internal machines can access the internet. The server can >> access the >>> internet. I can access my server/services from outside the local >>> network but internal machines cannot. >>> >>> Any ideas/suggestions? >>> >>> Thanks, >>> >>> --Eddie >>> >>> _______________________________________________ >>> CentOS mailing list >>> CentOS at centos.org >>> http://lists.centos.org/mailman/listinfo/centos >> _______________________________________________ >> CentOS mailing list >> CentOS at centos.org >> http://lists.centos.org/mailman/listinfo/centos > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos