dns cname records

Hi,

If i have a DNS server that hosts the following zones:

zone1.com
zone2.com
zone3.com

An 'A' record called portal.zone1.com

Can you create a cname record for portal.zone1.com that points to newportal.thezone.com.  This zone is held on a different server.

These DNS servers are windows 2008 r2
cmatchettAsked:
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Cliff GaliherCommented:
Yes, you can create such a record. It will be up to the DNS client to process that result and do further lookups.
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cmatchettAuthor Commented:
how can this be achieved?
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Cliff GaliherCommented:
Right click in zone1.com, new CNAME record, the record name is portal and the target is the FQDN where you want it to point. You could make it Google.com if you wanted. You don't need to control the target domain, although, if you don't, you could obviously not control the final IP the client gets or any SS' certs the final server sends, so that is generally frowned upon.
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cmatchettAuthor Commented:
if i right click on zone 1 > new cname record

there is an alias name field
FQDN text box which is greyed out
then a target text box

whatever i enter into the alias field is added to the FQDN text box.

i put www.google.com in the alias field and the FQDN becaomes www.google.com.zone1.com
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Cliff GaliherCommented:
Add a trailing dot. This is in accordance with DNS RFCs.
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cmatchettAuthor Commented:
This doesn't work using the DNS management console a windows Server dns server.  Can you give me a screenshot of what you mean?
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Cliff GaliherCommented:
I think you are reversing the purposes of the boxes.

If I have a zone, cliff.org, and I want search.cliff.org to point to www.Google.com

Then the alias for the cname record is simply "search" and yes, the FQDN is autopopulated. Which, since I'm creating the record in that zone, makes complete sense.

The target, (where I want search.cliff.org to point to, like pointing an arrow at a target) is "www.Google.com."  with that trailing . Without the quotes. Tada, CName record.

What isn't working for you???
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cmatchettAuthor Commented:
I understand what you are saying now..

What i was doing was...

There is already an A record for portal.zone1.com

When i was trying to create the cname record, i was

putting www.google.com. as the Alias name
and in the target, i was browsing for portal.zone1.com

actions

delete A record for portal.zone1.com
then create cname record with an alias of portal.zone1.com with a target of www.google.com.
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Cliff GaliherCommented:
Looks right to me. Was there a question in that last response?
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cmatchettAuthor Commented:
excellent
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