Re: Need Help from DNS Expert on Subdomain DNS Records

Read inline please.

In news:8249D014-49C8-4B12-9058-F495C27CAEA6@xxxxxxxxxxxxx,
razor <razor@xxxxxxxxxxxxxxxxxxxxxxxxx> typed:
Hello--

We have an issue with being able to access a domain and it's sub
domain from within and outside our firewall. We had it working with
our old firewall, but we changed firewalls Friday and now it won't
work.

Here's our scenario: We have a namespace called 'domainname.com' with
a DNS Host A entry for the IP address associated with the name of the
website in our internal IIS server. We also have a sub domain named,
'dev' that we used to have the same IP address as the namespace, but
since our new firewall will not allow more than one public IP to
point to the same private IP, we had to change the IP address for the
child Host A record as well as the website in IIS to something
different than the parent IP.

Now everything is whacky. Some of our clients inside the firewall can
access the 'dev' site and some cannot. Some can access the parent
site and some cannot, and those that can connect, can only do so
intermittently.

If we change the parent and the child Host A records to be the same
IP, we cannot access the child site from outside the LAN/Firewall
because of the new firewall policy with only one public IP per
private IP pointer.

Both the parent domain and child or sub domain IP addresses are in
the IIS server's TCP/IP properties in it's NIC card. I looked up our
DNS schema in O'Reilly's DNS 2nd edition for Windows 2003, and it
said our convention is correct, but said nothing (that I can find)
about IP addresses.

All of our servers are Windows 2003 and our workstations are W XP
/SP2.

Any help would be greatly appreciated.

sd

Is there an Active Directory domain named "domainname.com", too?

--
Best regards,
Kevin D. Goodknecht Sr. [MVP]
Hope This Helps

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