RE: Domain Name routing

[Chris Bipes <chris.bipes@xxxxxxxxxxxxxxx>]

Your DNS is pointing to an external IP address.  Your router is sending your
request out to the internet.  Your firewall is most likely NATing your
internal IP to an external IP.  How many IP address do you have?  Set your
external router to route your external IP address back inside and not send
them out.  Best bet is to have an internal DNS server, easy to configure on
your AS400 and built in so its free, as well as an external DNS server.  All
your internal devices should be in your internal DNS server and NO external
IP addresses.  Set up forwarders to you ISP for external IP on your internal
DNS server.  Your external DNS server should only have the URLs you want to
publish to the public and their external or public IP address.  The external
DNS server should not have any forwarders or internal IP address.

This is a BIG security issue.  Let me know, on list, if you need help or
clarification.

Christopher K. Bipes      mailto:Chris.Bipes@Cross-Check.com
Operations & Network Mgr  mailto:Chris_Bipes@Yahoo.com
CrossCheck, Inc.          http://www.cross-check.com
6119 State Farm Drive     Phone: 707 586-0551 x 1102
Rohnert Park CA  94928    Fax: 707 586-1884


-----Original Message-----
From: Justin Houchin [mailto:justin@RELIATEK.COM]
Sent: Tuesday, July 30, 2002 8:14 AM

Hi Everyone,
            I have our AS400 sitting behind a Smoothwall Firewall box.
It acts as the DHCP. Here is my problem.from inside of the firewall we
cannot type www.reliatek.com <http://www.reliatek.com/>  and see the web
page on our 400. But I can type the IP address of the 400 and pull up
the page. From the outside you can type www.reliatek.com
<http://www.reliatek.com/>  and view are page. Is there something
configured incorrectly in my 400 or is it my router not allowing this to
work?