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 Msg 'NT AUTHORITY\ANONYMOUS LOGON' in log

Author  Topic 

geossl
Yak Posting Veteran

85 Posts

Posted - 2005-03-17 : 22:31:14
Dear All,
In the SQL Server log, there is a lot of "Login failed for user 'NT AUTHORITY\ANONYMOUS LOGON". What is this problem? Is there any way to figure out which machine is it?

Thanks.

tkizer
Almighty SQL Goddess

38200 Posts

Posted - 2005-03-18 : 13:35:30
You can use SQL Profiler to see where these are coming from.

Tara
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TSQLMan
Posting Yak Master

160 Posts

Posted - 2005-03-20 : 00:09:52
Once you have found out where it is coming from you may want to Turn on Kerberos Logging on your SQL Server. MS KB Article# 326985. This could possibly be Kerberos failing, and falling back to NTLM in a double hop scenario. I am actually having that issue now.

Thanks,

TSQLMan
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