Dear colleages,

we have a strange problem on two of our four production Novell NetWare
servers (NW65 SP6). When I check the Health Monitor in Remote Manager the
Failed Logins per Hour keeps running up (appearantly the maximum is 120,
because it doesn't get higher). Below is the message which keeps returning
in the log file:

Time: Tuesday, 24-04-2007 15:22
User: .CN=Admin.O=XX.T=XXXXX.

Or someone is trying to hack our system or something else is wrong. I
already tried using DSTRACE but I think I'm doing something wrong, because
nothing shows up.

I have two questions:
1 Can I use DSTRACE to detect what's wrong (how do I set this up)?
2 Or does anyone just knows what's causing this?