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How to configure DNS for internal and external web site access.

Posted on 2004-03-26
Medium Priority
Last Modified: 2010-04-13
Please note the 'i' in the domain name in front of r2katz.net for the internal web site.

 I can access the www.r2katz.net with:   www.r2katz.net (IIS/DNS server only) or r2katz
 I can access the www.ir2katz.net with:   ir2katz only; www.ir2katz.net does not work.

Can someone tell me why I cannot use www.ir2katz.net internally to access my internal website?  Or is this normal?
And why does the www.r2katz.net (www part) only work on the IIS/ DNS server?

Access from any other Internal host uses: r2katz  or  ir2katz (www does not work)

www.r2katz.net is a registered DNS record and ir2katz is internal to my network.  My ipconfig is using the internal DNS first.

Name      Type      Data
(same as parent folder)      Start of Authority      [70], kibbles.r2katz.net., admin.r2katz.net.
(same as parent folder)      Name Server      kibbles.r2katz.net.
(same as parent folder)      Host
ir2katz      Alias      kibbles.r2katz.net.
kibbles      Host
kiki      Host
nbits      Host
nuggie      Host
r2katz      Alias      kibbles.r2katz.net.
www      Alias      kibbles.r2katz.net.

Question by:benje02
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Expert Comment

ID: 10693007
I'm just a little confused. Let me understand.
kibbles.r2katz.net is both your ISS and DNS server?
www.r2katz.net and www.ir2katz.net are the same thing with just a different name?

1st. Your dns doesn't recognize ir2katz.net because, actually, it doesn't exist. Create a new zone called ir2katz.net and put in it your ISS server and a www alias for it.

2st You have to do the same thing the existing zone,r2katz.net. Delete "ir2katz     Alias     kibbles.r2katz.net" record. In this case www.ir2katz won't work as if it was www.r2katz.net. Different domain name.

3st Be sure that clients in your network are using the right DNS server (

Follow these 3 steps, and let me know if it works. However it should.

Regard, Antonio

Author Comment

ID: 10695817

 kibbles.r2katz.net is the IIS and DNS server at

 r2katz is the external web and ir2katz is the internal web.

 I created a new zone for www.ir2katz.net in the DNS server and added an alias for WWW and a host for as follows:

kibbles   host
www     alias   kibbles.ir2katz.net

I removed all references to ir2katz from the www.r2katz.net zone.

The only thing that does not work right now is when I try to use 'ir2katz' only in the web browser.  The three other ways work okay as follows:

www.r2katz.net   (works)
www.ir2katz.net  (works)
r2katz                 (works)
ir2katz                 (does not work yet)



Accepted Solution

Antowh76 earned 800 total points
ID: 10697014
Add this record in ir2katz.net: "ir2katz     Alias     kibbles.r2katz.net"

When you query a dns server using your web browser, you ask it just to resolve a name. When the name is resolved, the web browser automatically serch for the service on the tcp port 80 at the given ip address. If you have the appropriate "A" records and the aliases created, everything should work fine.

Let me know. I go to sleep (in italy it's 5 o'clock...) but I hope to find good news from you.
Regards, Antonio

Expert Comment

ID: 10709748
Good news, I suppose :-)

Regards, Antonio

Author Comment

ID: 10716347

  Yes, everything is working okay now.  I think one of my problems was the DNS caching information when I made changes and then I could not see the results right away.  Anyhow, I appreciate the help.

Thanks Again,

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