DNS

  • Thread starter Thread starter Bruno P
  • Start date Start date
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Bruno P

I have a win2000 server that is a domain controller. the
only dns address in TCP/IP is it's own (192.168.1.5).
There are no other DNS address listed. There is however a
gateway entry pointing to the internet router, the router
does not do any name resolution. When I browse the
internet on the 2000 server, it is able to browse. I don't
understand this, the server has no real DNS entries from
the ISP or any one else. How is it able to "Resolve". Also
the same with internal clients who has only the DNS entry
for the 2000 server... ? Please advise, thanks
 
When you install DNS there is a file with the primary DNS
servers and their IP addresses for the top level DNS
servers. (.com .edu .mil etc)

You installed DNS on your win2k server and if it can't
resolve the FQDN it is forwarding it to one of the top
level DNS servers for resolution.

You can prevent this by deleting the top level DNS server
entries in your DNS server. If you do this then you won't
be able to surf the internet unless your ISP has a DNS
server setup and you point to it as the forwarding IP.
 
Thanks, where would I delete this or find this top level
DNS info ? I'm new to 2000 so this may be a dumb question,
sorry.
 
Hi,

under your hostname properties of Administrative
tools/DNS, you need to modify on Advanced & RootHints
advanced page: disable recursion
RootHints: delete root records

have funs

richard
 
Richard is exactly right, Just to make it easy.

CLick on Start|Programs|Administrative tools|DNS
CLick on the + next to your DNS server name to expand it.
Then Right click on the DNS server name, which will now
have a - sign next to it and click on Properties.
Click on the advanced tab and place a check mark in
the "Disable recursion" square.

From here click on the Apply button and then on OK.

Then Right click on the DNS server name again and
choose "Update Server Data Files"

Now see if anyone can surf the net.

If they still can then we need to delete the root hints.
I had second thoughts about telling you to delete them
since you may want to surf the net in the future and might
need to recreate the root hints.

To delete them:
CLick on Start|Programs|Administrative tools|DNS
CLick on the + next to your DNS server name to expand it.
Then Right click on the DNS server name, which will now
have a - sign next to it and click on Properties.
Click on the Root hints tab
Highlight the names under the Server Name title and click
on Remove.

Mack
 
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