We have a very high Failed Logins per hour count on two of our four
NetWare 6.5 SP6 servers. The logentry is always the same and repeats
itself every ½/1 minute. The entry reads:

Time: Tuesday, 24-04-2007 16:22
User: .CN=Admin.O=XX.T=XXXXX.

Does anyone know what's causing this and how I can solve it?
Can I use DSTRACE to find out the source of our problems?