Contact US

Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Global Catalog Server could not be located

Global Catalog Server could not be located

Global Catalog Server could not be located

OK here's the set-up...
3 Windows 2003 servers (all using msdn subscription cdroms/keys), mail, isa and file.  The first server in the forest to be seup was the mailserver, and is/was the operations master for all roles.

Running dsquery server -hasfsmo ... on the roles tells me the server is still listed as the operations master for all roles.  So far so good, but....

If I connect to the server on a remote console and run dcdiag I get
 Warning: DcGetDcName(GC_SERVER_REQUIRED) call failed, error 1355
 A Global Catalog Server could not be located - All GC's are down.

Also where I had a mapped drive to the servers shared drive, if I try and connect I get the error
 Microsoft Windows Network:  The local device name is already in use.

if I connect via start run, \\
I see the shared folders fine...
but a start run, \\mail
returns a logon failure: the target account name is incorrect.

I attempted to transfer the roles to one of the other servers and in the ad mmc, It says the current operations master is offline.  but on the mail server itself no errors are shown in the mmc !!!

Can anyone help on this, I don't fancy rebuilding the mailserver if I can help it, and think if I size the roles I have to reformat the drive....

RE: Global Catalog Server could not be located


This all sounds DNS related. Do you have Active Directory integration with your DNS server(s)?

Are the other two servers Domain Controllers, or member servers? At least one would have to be in order to seize FSMO roles, but you don't explicitly state this.

A+, Network+, Security+, MCSA: Security 2003

RE: Global Catalog Server could not be located

Both the mail server and the file server have DNS intergrated and running, as well as DHCP, but only the mail server has WINS.

Following your post, I checked the DNS, and found as I expected from when I installed, one A-name record for the mail server + two C-name alias records, and an MX record, all as expected.  The mail server also only has a single IP address, and single NIC installed.

All servers inside are on the same C-class IP range (192.168.1.x) and only the isa server has a second NIC with a address in the DMZ.

One last thing, thinking back, this all seems to of gone pear shaped since raising the domain functional level to 2003 from 2000 which it was all of last year.

RE: Global Catalog Server could not be located

Look for the GC entries on the DNS server. Under _msdcs

try to run netdiag/fix that will repopulate entries.

Is the correct DNS server being used?

RE: Global Catalog Server could not be located

Well, too late to check this, as of this morning, it's all working fine...  No changes made!

Strange or what?  Oh, well thanks anyways....

RE: Global Catalog Server could not be located

Strange but can happen,, do you have auditing enabled to see if any changes where made.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members! Already a Member? Login

Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close