[CentOS] DNS or firewall problem
Timothy Murphy
gayleard at eircom.net
Tue Jul 6 02:10:54 UTC 2010
Thomas Dukes wrote:
>> Do u have ipv4 forwarding on in your /etc/syscttl
>
> Uhhh, in /etc/sysctl.conf,
>
> net.ipv4.conf.ip_forward = 0 ??
>
> change to = 1 ??
I have more or less the same setup as you,
and I have
net.ipv4.conf.ip_forward = 0
in /etc/sysctl like you,
but I have no problem accessing my server from my laptop.
I am running shorewall,
and it would be easy to set this up
to have the effect you describe.
I have the line
loc $FW ACCEPT
in /etc/shorewall/policy .
The default is
loc $FW REJECT info
which would have the effect you describe.
Nb I don't really understand iptables,
but I find shorewall does most of the thinking for me.
--
Timothy Murphy
e-mail: gayleard /at/ eircom.net
tel: +353-86-2336090, +353-1-2842366
s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland
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