Running public Bind Server from behind firewall
mayer
mayer at gis.net
Tue Jun 7 12:27:54 UTC 2005
----- Original Message Follows -----
> I've been running bind for a while now without any problems. server
> is on public ip space behind a L2 transparent firewall.
>
> I just reconfigured the server to be on a private ip address and moved
> it behind a new firewall that is not a L2 transparent firewall. I
> have setup a "Mapped IP" on the firewall, but for some reason DNS
> doesn't work like it should. looks like responses to queries done by
> the dns server aren't getting back.
>
> The thing that's confusing me is that all other services on the
> machine that were moved are working fine SMTP, POP, HTTP. DNS is the
> only service that is having problems.
>
> Is there something obvious that I would have to change in my
> named.conf to support a bind server running on a private ip address
> behind a firewall? (keep in mind that the firewalls i'm running are
> identical with identical policies, the only difference is the
> introduction of this private ip network)
>
This sounds like a firewall problem. Did you open port 53/UDP as well
as 53/TCP? Note that those other protocols use TCP and not UDP.
Danny
> /John
>
>
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