wildcard subdomains in MS DNS

[rvj]

I have a simple (old) NT server development environment using MS DNS

I read that creating a DNS wildcard host domain entry and IP address
should route
all subdomain requestss to the stated IP address

This does not happen although individual host entries work fine .

Q Are wildcard host entries supported in windowNT DNS
or is it a feature of Windows 2000 or 2003 only?

[Ace Fekay [MVP]]

In news:eC1DDwx7...@TK2MSFTNGP05.phx.gbl,
rvj <r...@rolemodels.net> typed:

How did you create the record? NT4 does support it. You may have to do it in
the text file itself. Go to system32\dns folder, find the zone text file (it
has a .dns extension, such as domain.com.dns) and manually create an entry
such as the following:

Under the zone entry, try either (I forget which works):

*.domain.com A 192.168.10.10 (or whatever IP)
or
* A 192.168.10.10 (or whatever IP)

For more info, see:
Explanation of DNS Wildcards
http://support.microsoft.com/kb/193844

--
Regards,
Ace

This posting is provided "AS-IS" with no warranties or guarantees and
confers no rights.

Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSE+I, MCT,
MVP Microsoft MVP - Directory Services
Microsoft Certified Trainer

For urgent issues, you may want to contact Microsoft PSS directly. Please
check http://support.microsoft.com for regional support phone numbers.

Infinite Diversities in Infinite Combinations

[rvj]

Many thanks.

At least I know now that its actually possible !

Im sure Ive set it up incorrectly .. however idiot proof instructions seem
hard to find !

Just some background info

a) its DNS version 4 service pack 6
b) the boot method ( registry ) seems the only choice
(although I thought it should offer the option of boot file or registry)

Q1. I assume that I need to change the registry entry to to 1 (BIND file) ?

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\DNS.

Q2 Ive seen some posts indicating that you need to create an A record
without a name. Is this an alternative method ?

http://www.eggheadcafe.com/software/aspnet/32735273/wildcard-subdomains-in-ms.aspx

"Ace Fekay [MVP]" <Pleas...@SomeDomain.com> wrote in message
news:O4KaqpF8...@TK2MSFTNGP06.phx.gbl...

[rvj]

when I said idiot proof Iwasnt wrong

I realise that I provided the wrong url

http://www.eggheadcafe.com/forumarchives/windowsserverdns/Feb2006/post25739171.asp

"rvj" <r...@rolemodels.net> wrote in message
news:ekHSJ1J8...@TK2MSFTNGP02.phx.gbl...

[Ace Fekay [MVP]]

In news:uYLbhBK8...@TK2MSFTNGP04.phx.gbl,
rvj <r...@rolemodels.net> typed:

> when I said idiot proof Iwasnt wrong
>
> I realise that I provided the wrong url
>
> http://www.eggheadcafe.com/forumarchives/windowsserverdns/Feb2006/post25739171.asp
>

In the link you provided, Kevin was responding to a question concerning a
wildcard for a complete sub domain. Is that what you want or just a wild
card for the parent (your current) domain?

Ace

[rvj]

What I want is catch any hosts of any subdomains or any derivative
subdomains of domain.com

Will a single A record do ? something like

*. domain.com A IP1

will it catch anyhost.sub1.sub2.sub3.domain.com ?

something that is effectively the same as *.*.*.*.domain.com

or do I need to create a tree of domain record for each specific subdomain
path

*.sub1.sub2.sub3.domain.com A IP1
*.sub4.sub5.sub6.domain.com A IP1

PS sorry if this is all basic stuff - this is all new ground to me !

"Ace Fekay [MVP]" <Pleas...@SomeDomain.com> wrote in message

news:euuPBNK8...@TK2MSFTNGP03.phx.gbl...

[Kevin D. Goodknecht Sr. [MVP]]

Read inline please.

In news:Og5z6cK8...@TK2MSFTNGP05.phx.gbl,

rvj <r...@rolemodels.net> wrote:
> What I want is catch any hosts of any subdomains or any derivative
> subdomains of domain.com
>
> Will a single A record do ? something like
>
> *. domain.com A IP1
>
> will it catch anyhost.sub1.sub2.sub3.domain.com ?

A Wildcard will be resolved for any unknown host at the same and every level
under the Wildcarded domain.
There may be a problem.... If the parent of the wildcard, (domain.com in
your example), is in your DNS Suffix Search list, you may run into a problem
trying to resolve any external domain. Your DNS Suffix search list appends
domain.com to every query sent to DNS, this gives you the feature of
resolving NetBIOS type names in DNS. Example, using nslookup client1, sends
client1.domain.com to DNS. It's done in the background so, you wont see this
happen unless you use
nslookup -d2 client1. Now that I've explained this, you have to understand
the DNS Client appends the Suffix to ALL DNS queries not appended with a
".". Example: www.microsoft.com becomes www.microsoft.com.domain.com.
I hope this tells you what the Wildcard can do if you're not careful about
using them.

--
Best regards,
Kevin D. Goodknecht Sr. [MVP]
Hope This Helps

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[rvj]

Thanks for trailing dot reminder

PS Unless otherwise advised, I assume the controlset registry setting
for DNS startup must be 1 for any manually edited zone files !

"Kevin D. Goodknecht Sr. [MVP]" <ad...@nospam.WFTX.US> wrote in message
news:uy5oyyK8...@TK2MSFTNGP06.phx.gbl...