[CentOS] DNS or firewall problem

[Dominik Zyla]

On Tue, Jul 06, 2010 at 09:19:41PM +0100, Timothy Murphy wrote:
> cliff here wrote:
> 
> > Well if you want the kernel to route IPV4 traffic, then yes it has to be 1
> 
> >>>> net.ipv4.conf.ip_forward = 0  ??
> >>>>
> >>>> change to = 1 ??
> >>
> >>> yea that needs to be a 1
> >>
> >> That cannot be mandatory,
> >> as I have a 0 there and do not have the OP's problem.
> 
> You've changed the question.
> The OP did not say he wanted "to route IPV4 traffic".
> He said he could not access his server from local machines.
> 
> Are you saying you must have the setting you mention in /etc/sysctl.conf ?
> That cannot be true, as I can access my server and I don't have your entry.

Check your iptables rules. Maybe there are no INPUT rules to access your
gateway via internal nic.

-- 
Dominik Zyla

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