> i have a dns server behind my firewall. what would be the right code
> to allow dns query from and to my dns server ? the code below seems to
> work but is there a shorter one ? :)
>
>>> ipchins -A input -p tcp -s 0.0.0.0/0 -d x.x.x.y 53 -j ACCEPT
>>> ipchins -A input -p udp -s 0.0.0.0/0 -d x.x.x.y 53 -j ACCEPT
>>> ipchains -A input -p tcp -s 0.0.0.0/0 53 -d x.x.x.y -j ACCEPT
>>> ipchains -A input -p udp -s 0.0.0.0/0 53 -d x.x.x.y -j ACCEPT
>>>
Try this:
ipchains -A input -p tcp -s 0/0 53 -d x.x.x.y 53 -j ACCEPT
ipchains -A input -p udp -s 0/0 53 -d x.x.x.y 53 -j ACCEPT
You can specify your source port and destination ports simultaneously, I
think. :)
--------------------------------------
Gino LV. Ledesma
Ateneo Cervini-Eliazo Networks (ACENT)
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