[ILUG] DNS Problem

[Paul Jakma]

On Mon, 9 Jul 2001, Ray Dermody wrote:

> Hi All,
> I am having problems with my secondary DNS server. It is running
> RH7.1 with Bind 8.2.3. When I do an NSLOOKUP from the server it
> resolves IP addresses no problem but from another machine it
> doesnt work and says no response from server (its pings so its up).
> I also have a monitoring tool that tells us what services a particular
> server is running and it shows as DNS and FTP as down even
> though the daemons are running. I have recompiled Bind but to no
> avail.
> Any help would be greatly appreciated.

RH7.1 per default comes installed with a firewall in place to block
external access to lots of services. security don't ya know...

either use the relevant RedHat config tool (gnome-lokit??) to allow
accesss to ports 53 tcp and udp (DNS) and 20, 21 tcp (ftp-data and
ftp). or disable the firewalling totally:

for H in ipchains iptables ; do /etc/rc.d/init.d/${H} stop ; chkconfig
${H} off ; done


> R

regards,

--paulj