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Exchange Event 8026 and 8260

Posted on 2010-08-31
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Last Modified: 2012-05-10
Application log generated Error Event 8026 on apollo.nbofc
For more information see http://www.eventid.net/display.asp?eventid=8026&source=MSExchangeAL

Log: Application
Type: Error
Event: 8026
Agent Time: 04:01:07  30-Aug-10
Event Time: 09:01:07  30-Aug-10 UTC
Source: MSExchangeAL
Category: LDAP Operations
Username: N/A
Computer: APOLLO
Description: LDAP Bind was unsuccessful on directory DUL01.nbofc.int for distinguished name ''. Directory returned error:[0x51] Server Down.
DC=nbofc,DC=int


For more information, click http://www.microsoft.com/contentredirect.asp.




*Alert*      Application log generated Error Event 8260 on apollo.nbofc
For more information see http://www.eventid.net/display.asp?eventid=8260&source=MSExchangeAL

Log: Application
Type: Error
Event: 8260
Agent Time: 23:45:26  28-Aug-10
Event Time: 04:45:26  29-Aug-10 UTC
Source: MSExchangeAL
Category: Service Control
Username: N/A
Computer: APOLLO
Description: Could not open LDAP session to directory 'NBCDC1.nbofc.int' using local service credentials.
Cannot access Address List configuration information.  Make sure the
server 'NBCDC1.nbofc.int' is running.



For more information, click http://www.microsoft.com/contentredirect.asp.

I already added DUL01 to the RUS so that might take care of the problem from what i have read, but i was wondering if these errors had something to do with each other and also what to do about the second one (8260).
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Question by:nbofc
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4 Comments
 
LVL 22

Accepted Solution

by:
dan_blagut earned 500 total points
ID: 33574011
Hello

It look's like your LDAP server  (DUL01) is offline.
First try to ping that server from APOLLO, then try an telnet apollo 389 to verify that you can connect to LDAP service.

Dan
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Author Comment

by:nbofc
ID: 33577209
I was able to ping DUL01 from apollo but i was unable to do the telnet apollo 389 said "Could not open connection to host, on port 389: Connect Failed
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LVL 22

Expert Comment

by:dan_blagut
ID: 33577995
Did you have some firewalls that can block the trafic? Have you changend something on DUL01 latelly?

Dan
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Expert Comment

by:fnillc
ID: 36905886
I have the same error msgs, but the event ID 8260 is referring to a server that no longer exists. Exchange is now running on the DC. How can I update this so it knows where to look for the address list configuration info?
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