Re: Web Site Mystery


"Lanwench [MVP - Exchange]" wrote



Lanwench

Thanks for your input.
First let me say that I am somewhat out of my depth with all this but will
reply to your points to see if we can get to the bottom of this.


Although we have our own corporate domain europacrown.com, we do not
host our own web site at this location.
Instead, our parent company hosts our site along with their own.
So in our DNS setup, there is a pointer to the ip address of the host
server.

What's your AD domain name? If it matches your public domain name
(europacrown.com), you're using "split brain DNS" - and yes, you need to
have a host entry for www which points to the correct public IP.

Our AD domain is europa.
There is an entry in our DNS report which must point to the correct public
IP as the web site is accessible from any other browser connection outside
our LAN.


What do you get when you ping www.europacrown.com ? Does it return the
correct public IP? I get 216.17.30.189....



Interesting.
I believe that our firewall blocks attempts at external pings.
When I ping any other address it does resolve to an ip address but returns
"request timed out".
However, when I ping www.europacrown.com it returns "Ping request could not
find host www.europacrown.com. Please check the name and try again".


For some reason, attempts to access our company web site
www.europacrown.com don't work from our corporate network.

You might post the unedited output from an ipconfig /all from your DC....

Does publishing this information to the world compromise the security of our
network?



I have tried the same from a dial-up connection without any problems.
Although it is not clear how long this has been an issue, we recently
promoted our a SQL server to act as a domain controller and active
directory backup.

Is it also running AD-integrated DNS?

Not sure on this one. It was deliberately introduced as a backup both for
AD and as a secondary DNS, if that answers the question.


Can anyone suggest ways of fault finding this issue please?
Windows server 2003 network
ISA server used as proxy
Checkpoint firewall

Thanks in anticipation

Phil




This is looking more and more like an internal conflict/resolution issue to
a network newbie.
Thanks for any further pointers you can give

Phil


.

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