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Author
19 Mar 2009 2:38 PM
woisch
Hi,

i`ve a problem creating a external trust between two domains.

1st: Windows Server 2003 (Windows Server 2003 SP2)
2nd: Windows 200 native (Windows Server 2003 R2 SP2)

DNS is configured with conditional dns and the dns resolution is not the
problem i think.

If i click finish to create the trust i got the error with "the specified
user already exists"

But i don`t know which user is  meant ?!

There are no duplicatet user or computer accounts.

How could i solve this problem?

I`ve already read

http://support.microsoft.com/?scid=kb%3Ben-us%3B295335&x=8&y=8
http://support.microsoft.com/?scid=kb%3Ben-us%3B266633&x=12&y=10

Thx and regards
woisch

Author
19 Mar 2009 3:56 PM
Ace Fekay [Microsoft Certified Trainer]
In news:EFE832DF-CD22-4FA4-ABAF-0CBDF77740A7@microsoft.com,
woisch <woi***@discussions.microsoft.com>, posted the following:
Show quoteHide quote
> Hi,
>
> i`ve a problem creating a external trust between two domains.
>
> 1st: Windows Server 2003 (Windows Server 2003 SP2)
> 2nd: Windows 200 native (Windows Server 2003 R2 SP2)
>
> DNS is configured with conditional dns and the dns resolution is not
> the problem i think.
>
> If i click finish to create the trust i got the error with "the
> specified user already exists"
>
> But i don`t know which user is  meant ?!
>
> There are no duplicatet user or computer accounts.
>
> How could i solve this problem?
>
> I`ve already read
>
> http://support.microsoft.com/?scid=kb%3Ben-us%3B295335&x=8&y=8
> http://support.microsoft.com/?scid=kb%3Ben-us%3B266633&x=12&y=10
>
> Thx and regards
> woisch

Apparently there is an identical user name on both sides. Keep in mind, DNS
is not used in such a trust, rather NetBIOS. You can even have an identical
group name, domain controller name, etc. Name resolution support for such a
trust would require WINS  or hosts files on the PDC Emulators on both sides.

--
Ace

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

Ace Fekay, MCSE 2003 & 2000, MCSA 2003 & 2000, MCSA Messaging, MCT
Microsoft Certified Trainer
ace***@mvps.RemoveThisPart.org

For urgent issues, you may want to contact Microsoft PSS directly. Please
check http://support.microsoft.com for regional support phone numbers.
Author
19 Mar 2009 11:07 PM
Meinolf Weber [MVP-DS]
Hello woisch,

What AD domain names, DNS zone names and NetBios names are used on both domains?

Best regards

Meinolf Weber
Disclaimer: This posting is provided "AS IS" with no warranties, and confers
no rights.
** Please do NOT email, only reply to Newsgroups
** HELP us help YOU!!! http://www.blakjak.demon.co.uk/mul_crss.htm


Show quoteHide quote
> Hi,
>
> i`ve a problem creating a external trust between two domains.
>
> 1st: Windows Server 2003 (Windows Server 2003 SP2) 2nd: Windows 200
> native (Windows Server 2003 R2 SP2)
>
> DNS is configured with conditional dns and the dns resolution is not
> the problem i think.
>
> If i click finish to create the trust i got the error with "the
> specified user already exists"
>
> But i don`t know which user is  meant ?!
>
> There are no duplicatet user or computer accounts.
>
> How could i solve this problem?
>
> I`ve already read
>
> http://support.microsoft.com/?scid=kb%3Ben-us%3B295335&x=8&y=8
> http://support.microsoft.com/?scid=kb%3Ben-us%3B266633&x=12&y=10
>
> Thx and regards
> woisch
Author
20 Mar 2009 6:04 AM
Milun Jevremovic
Hello,

when trust is created, In AD 2 objects are created:
- TDO (trusted domain object), which is usualy not creating problems
- User object (in Users container), containing NETBIOS name of
trusted/trusting domain with $ at the end. This user object is not visible in
ADUC, but it is in ADSIEdit.

Usualy when you get this error, on side where you are getting it you already
have object with identical username. Since we have $ at end, that is probably
COMPUTER object, although we possibly have earlier, not properly removed
trust with the same domain.

Regards,

Milun

Show quoteHide quote
"woisch" wrote:

> Hi,
>
> i`ve a problem creating a external trust between two domains.
>
> 1st: Windows Server 2003 (Windows Server 2003 SP2)
> 2nd: Windows 200 native (Windows Server 2003 R2 SP2)
>
> DNS is configured with conditional dns and the dns resolution is not the
> problem i think.
>
> If i click finish to create the trust i got the error with "the specified
> user already exists"
>
> But i don`t know which user is  meant ?!
>
> There are no duplicatet user or computer accounts.
>
> How could i solve this problem?
>
> I`ve already read
>
> http://support.microsoft.com/?scid=kb%3Ben-us%3B295335&x=8&y=8
> http://support.microsoft.com/?scid=kb%3Ben-us%3B266633&x=12&y=10
>
> Thx and regards
> woisch
>
Author
20 Mar 2009 8:56 AM
woisch
Okay, i`ve now tried in a virtual environment to create a trust. I tried it
on two fresh domains and it works.

I removed the trust once more.

Then i created a computer account on both domains with the same name and
additional a user account witth same name on both domains.

I created the trust again and it works?! Why ??

In the real domain we used also wins server and i checked them. No
duplicated items.

That`s strange.....

@ Milun Jevremovic
I`ve a look at both domains in adsiedit and checked the CN=Users vor a
account with $ . No account found.

I`ve also checked the Active Directory Container "System" for a folder with
the type "trust" ..... but nothing.

If i make a:

DSQUERY COMPUTER -SAMID <DOMAIN-NAME>$
DSQUERY COMPUTER -NAME <DOMAIN-NAME>

i got an empty line on the command line....

The other strange thing is:

domain a: unlimitedttest.co.uk (not the real name)
domain b: heaventest.com (not the real name)

If i created a trust from unlimitedtest.co.uk:

1. External Trust
2. Two-Way
3. This domain only (not both this domain and the specified domain)
4. Domain-wide authentication
5. Trust password

the trust works from this side. If i configure it from the other side, it
didnt work....

And if i creat the trust from unlimitedtest.co.uk WITH "Both this domain and
the specified domain" i got the same error with the specified user.

I`m a little bit confused now. ;) Is the failure on the "heaventest.com"
domain? Because from the other domain i can create a trust....

Hope for help ;)

Thx
Woisch

Show quoteHide quote
"Milun Jevremovic" wrote:

> Hello,
>
> when trust is created, In AD 2 objects are created:
> - TDO (trusted domain object), which is usualy not creating problems
> - User object (in Users container), containing NETBIOS name of
> trusted/trusting domain with $ at the end. This user object is not visible in
> ADUC, but it is in ADSIEdit.
>
> Usualy when you get this error, on side where you are getting it you already
> have object with identical username. Since we have $ at end, that is probably
> COMPUTER object, although we possibly have earlier, not properly removed
> trust with the same domain.
>
> Regards,
>
> Milun
>
> "woisch" wrote:
>
> > Hi,
> >
> > i`ve a problem creating a external trust between two domains.
> >
> > 1st: Windows Server 2003 (Windows Server 2003 SP2)
> > 2nd: Windows 200 native (Windows Server 2003 R2 SP2)
> >
> > DNS is configured with conditional dns and the dns resolution is not the
> > problem i think.
> >
> > If i click finish to create the trust i got the error with "the specified
> > user already exists"
> >
> > But i don`t know which user is  meant ?!
> >
> > There are no duplicatet user or computer accounts.
> >
> > How could i solve this problem?
> >
> > I`ve already read
> >
> > http://support.microsoft.com/?scid=kb%3Ben-us%3B295335&x=8&y=8
> > http://support.microsoft.com/?scid=kb%3Ben-us%3B266633&x=12&y=10
> >
> > Thx and regards
> > woisch
> >
Author
20 Mar 2009 12:25 PM
Milun Jevremovic
Definitelly sounds like problem on second domain.

Let say that NETBIOS names of your domains are UNLIMITED and HEAVEN

So, on heaventest.com you are sure that you do not have user account named
unlimited or computer account UNLIMITED, as well you do not have UNLIMITED$
in Users container (leftover of previous trust). It is not problem to have
HEAVEN computer on HEAVEN domain, but name of oposite domain.

PLease check Lost and Found container via ADSIEDIT or LDP, as well Deleted
Object (via LDP, after enabling Control option to return deleted objects),
for any of those options.

Only other option I see at present moment is:
- as somebody mentioned, your UNLIMITED NETBIOS domain name is "protected"
name which cannot be used in trusts (like INTERNET, DOMAIN, SYSTEM, not sure
what others are). Usualy they were created in NT time where no protection was
set and upgraded to 2000/2003 without renaming

Milun

Show quoteHide quote
"woisch" wrote:

> Okay, i`ve now tried in a virtual environment to create a trust. I tried it
> on two fresh domains and it works.
>
> I removed the trust once more.
>
> Then i created a computer account on both domains with the same name and
> additional a user account witth same name on both domains.
>
> I created the trust again and it works?! Why ??
>
> In the real domain we used also wins server and i checked them. No
> duplicated items.
>
> That`s strange.....
>
> @ Milun Jevremovic
> I`ve a look at both domains in adsiedit and checked the CN=Users vor a
> account with $ . No account found.
>
> I`ve also checked the Active Directory Container "System" for a folder with
> the type "trust" ..... but nothing.
>
> If i make a:
>
> DSQUERY COMPUTER -SAMID <DOMAIN-NAME>$
> DSQUERY COMPUTER -NAME <DOMAIN-NAME>
>
> i got an empty line on the command line....
>
> The other strange thing is:
>
> domain a: unlimitedttest.co.uk (not the real name)
> domain b: heaventest.com (not the real name)
>
> If i created a trust from unlimitedtest.co.uk:
>
> 1. External Trust
> 2. Two-Way
> 3. This domain only (not both this domain and the specified domain)
> 4. Domain-wide authentication
> 5. Trust password
>
> the trust works from this side. If i configure it from the other side, it
> didnt work....
>
> And if i creat the trust from unlimitedtest.co.uk WITH "Both this domain and
> the specified domain" i got the same error with the specified user.
>
> I`m a little bit confused now. ;) Is the failure on the "heaventest.com"
> domain? Because from the other domain i can create a trust....
>
> Hope for help ;)
>
> Thx
> Woisch
>
> "Milun Jevremovic" wrote:
>
> > Hello,
> >
> > when trust is created, In AD 2 objects are created:
> > - TDO (trusted domain object), which is usualy not creating problems
> > - User object (in Users container), containing NETBIOS name of
> > trusted/trusting domain with $ at the end. This user object is not visible in
> > ADUC, but it is in ADSIEdit.
> >
> > Usualy when you get this error, on side where you are getting it you already
> > have object with identical username. Since we have $ at end, that is probably
> > COMPUTER object, although we possibly have earlier, not properly removed
> > trust with the same domain.
> >
> > Regards,
> >
> > Milun
> >
> > "woisch" wrote:
> >
> > > Hi,
> > >
> > > i`ve a problem creating a external trust between two domains.
> > >
> > > 1st: Windows Server 2003 (Windows Server 2003 SP2)
> > > 2nd: Windows 200 native (Windows Server 2003 R2 SP2)
> > >
> > > DNS is configured with conditional dns and the dns resolution is not the
> > > problem i think.
> > >
> > > If i click finish to create the trust i got the error with "the specified
> > > user already exists"
> > >
> > > But i don`t know which user is  meant ?!
> > >
> > > There are no duplicatet user or computer accounts.
> > >
> > > How could i solve this problem?
> > >
> > > I`ve already read
> > >
> > > http://support.microsoft.com/?scid=kb%3Ben-us%3B295335&x=8&y=8
> > > http://support.microsoft.com/?scid=kb%3Ben-us%3B266633&x=12&y=10
> > >
> > > Thx and regards
> > > woisch
> > >
Author
20 Mar 2009 2:59 PM
woisch
Ok, problem solved. Someone has created a computer account in an OU and named
this machine the same as the netbios domain name of the 2nd domain..... grmpf

Thanks for help to all.

Have all a nice weekend.
woisch

Show quoteHide quote
"Milun Jevremovic" wrote:

> Definitelly sounds like problem on second domain.
>
> Let say that NETBIOS names of your domains are UNLIMITED and HEAVEN
>
> So, on heaventest.com you are sure that you do not have user account named
> unlimited or computer account UNLIMITED, as well you do not have UNLIMITED$
> in Users container (leftover of previous trust). It is not problem to have
> HEAVEN computer on HEAVEN domain, but name of oposite domain.
>
> PLease check Lost and Found container via ADSIEDIT or LDP, as well Deleted
> Object (via LDP, after enabling Control option to return deleted objects),
> for any of those options.
>
> Only other option I see at present moment is:
> - as somebody mentioned, your UNLIMITED NETBIOS domain name is "protected"
> name which cannot be used in trusts (like INTERNET, DOMAIN, SYSTEM, not sure
> what others are). Usualy they were created in NT time where no protection was
> set and upgraded to 2000/2003 without renaming
>
> Milun
>
> "woisch" wrote:
>
> > Okay, i`ve now tried in a virtual environment to create a trust. I tried it
> > on two fresh domains and it works.
> >
> > I removed the trust once more.
> >
> > Then i created a computer account on both domains with the same name and
> > additional a user account witth same name on both domains.
> >
> > I created the trust again and it works?! Why ??
> >
> > In the real domain we used also wins server and i checked them. No
> > duplicated items.
> >
> > That`s strange.....
> >
> > @ Milun Jevremovic
> > I`ve a look at both domains in adsiedit and checked the CN=Users vor a
> > account with $ . No account found.
> >
> > I`ve also checked the Active Directory Container "System" for a folder with
> > the type "trust" ..... but nothing.
> >
> > If i make a:
> >
> > DSQUERY COMPUTER -SAMID <DOMAIN-NAME>$
> > DSQUERY COMPUTER -NAME <DOMAIN-NAME>
> >
> > i got an empty line on the command line....
> >
> > The other strange thing is:
> >
> > domain a: unlimitedttest.co.uk (not the real name)
> > domain b: heaventest.com (not the real name)
> >
> > If i created a trust from unlimitedtest.co.uk:
> >
> > 1. External Trust
> > 2. Two-Way
> > 3. This domain only (not both this domain and the specified domain)
> > 4. Domain-wide authentication
> > 5. Trust password
> >
> > the trust works from this side. If i configure it from the other side, it
> > didnt work....
> >
> > And if i creat the trust from unlimitedtest.co.uk WITH "Both this domain and
> > the specified domain" i got the same error with the specified user.
> >
> > I`m a little bit confused now. ;) Is the failure on the "heaventest.com"
> > domain? Because from the other domain i can create a trust....
> >
> > Hope for help ;)
> >
> > Thx
> > Woisch
> >
> > "Milun Jevremovic" wrote:
> >
> > > Hello,
> > >
> > > when trust is created, In AD 2 objects are created:
> > > - TDO (trusted domain object), which is usualy not creating problems
> > > - User object (in Users container), containing NETBIOS name of
> > > trusted/trusting domain with $ at the end. This user object is not visible in
> > > ADUC, but it is in ADSIEdit.
> > >
> > > Usualy when you get this error, on side where you are getting it you already
> > > have object with identical username. Since we have $ at end, that is probably
> > > COMPUTER object, although we possibly have earlier, not properly removed
> > > trust with the same domain.
> > >
> > > Regards,
> > >
> > > Milun
> > >
> > > "woisch" wrote:
> > >
> > > > Hi,
> > > >
> > > > i`ve a problem creating a external trust between two domains.
> > > >
> > > > 1st: Windows Server 2003 (Windows Server 2003 SP2)
> > > > 2nd: Windows 200 native (Windows Server 2003 R2 SP2)
> > > >
> > > > DNS is configured with conditional dns and the dns resolution is not the
> > > > problem i think.
> > > >
> > > > If i click finish to create the trust i got the error with "the specified
> > > > user already exists"
> > > >
> > > > But i don`t know which user is  meant ?!
> > > >
> > > > There are no duplicatet user or computer accounts.
> > > >
> > > > How could i solve this problem?
> > > >
> > > > I`ve already read
> > > >
> > > > http://support.microsoft.com/?scid=kb%3Ben-us%3B295335&x=8&y=8
> > > > http://support.microsoft.com/?scid=kb%3Ben-us%3B266633&x=12&y=10
> > > >
> > > > Thx and regards
> > > > woisch
> > > >
Author
20 Mar 2009 3:55 PM
Ace Fekay [Microsoft Certified Trainer]
In news:A5595238-065A-4AA9-B2E6-0018A74B5FE9@microsoft.com,
woisch <woi***@discussions.microsoft.com>, posted the following:
> Ok, problem solved. Someone has created a computer account in an OU
> and named this machine the same as the netbios domain name of the 2nd
> domain..... grmpf
>
> Thanks for help to all.
>
> Have all a nice weekend.


Glad to hear you found the duplicate name!

Cheers!

Ace