| Author |
Message |
GLT
Guest
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 Posted:
Thu Jan 06, 2005 7:41 pm Post subject:
Server 2003 DDNS - Legal Entry? |
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Is the following a legal entry for Server 2003 DDNS? (AD Integrated).
* Alias (CNAME) www.mycompany.com.
It seems to be in-line with the RFC, but then again another portion of the
RFC states that characters such as an asterik cannot be used.
If it is not legal, what are the ramifications?
Thank you! |
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Kevin D. Goodknecht Sr. [
Guest
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| Posted:
Thu Jan 06, 2005 9:17 pm Post subject:
Re: Server 2003 DDNS - Legal Entry? |
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In news:FB64C263-1BCA-4579-BA3D-6542AFB3E30F@microsoft.com,
GLT <GLT@discussions.microsoft.com> commented
Then Kevin replied below:
| Quote: | Is the following a legal entry for Server 2003 DDNS? (AD
Integrated).
* Alias (CNAME) www.mycompany.com.
It seems to be in-line with the RFC, but then again
another portion of the RFC states that characters such as
an asterik cannot be used.
If it is not legal, what are the ramifications?
|
An asterisk in DNS is a Wildcard character.
I have tested this and you can create a wildcard CNAME record, but as with
other wildcard records there may be unexpected results. This is especially
if you place the wild card record in a zone for a domain that is in your DNS
suffix search list because this search list is appended to queries by the
system resolver and by nslookup and may cause any query to DNS to resolve to
this record.
On a side note, in MS DNS, to create a Wildcard "A" record, you must create
a subdomain named with an asterisk and create a blank "A" record in the
subdomain. MS DNS does not allow an asterisk in a host record name through
the MMC DNS console.
There may be situations to use a wildcard record and your may be one, just
understand what a wildcard record does and how it may affect you.
--
Best regards,
Kevin D4 Dad Goodknecht Sr. [MVP]
Hope This Helps
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via your newsreader so that others may learn and
benefit from your issue, to respond directly to
me remove the nospam. from my email address.
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It will strip signature out and more
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GLT
Guest
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| Posted:
Thu Jan 06, 2005 10:33 pm Post subject:
Re: Server 2003 DDNS - Legal Entry? |
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Thanks Kevin!
"Kevin D. Goodknecht Sr. [MVP]" wrote:
| Quote: | In news:FB64C263-1BCA-4579-BA3D-6542AFB3E30F@microsoft.com,
GLT <GLT@discussions.microsoft.com> commented
Then Kevin replied below:
Is the following a legal entry for Server 2003 DDNS? (AD
Integrated).
* Alias (CNAME) www.mycompany.com.
It seems to be in-line with the RFC, but then again
another portion of the RFC states that characters such as
an asterik cannot be used.
If it is not legal, what are the ramifications?
An asterisk in DNS is a Wildcard character.
I have tested this and you can create a wildcard CNAME record, but as with
other wildcard records there may be unexpected results. This is especially
if you place the wild card record in a zone for a domain that is in your DNS
suffix search list because this search list is appended to queries by the
system resolver and by nslookup and may cause any query to DNS to resolve to
this record.
On a side note, in MS DNS, to create a Wildcard "A" record, you must create
a subdomain named with an asterisk and create a blank "A" record in the
subdomain. MS DNS does not allow an asterisk in a host record name through
the MMC DNS console.
There may be situations to use a wildcard record and your may be one, just
understand what a wildcard record does and how it may affect you.
--
Best regards,
Kevin D4 Dad Goodknecht Sr. [MVP]
Hope This Helps
===================================
When responding to posts, please "Reply to Group"
via your newsreader so that others may learn and
benefit from your issue, to respond directly to
me remove the nospam. from my email address.
===================================
http://www.lonestaramerica.com/
===================================
Use Outlook Express?... Get OE_Quotefix:
It will strip signature out and more
http://home.in.tum.de/~jain/software/oe-quotefix/
===================================
Keep a back up of your OE settings and folders
with OEBackup:
http://www.oehelp.com/OEBackup/Default.aspx
===================================
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