disable ip address

From: Mindaugas Bliūdžius (mindaugas_at_infoera.lt)
Date: 06/14/05

Date: Tue, 14 Jun 2005 15:17:00 +0300

how can i disable ip address from trying to connect on my windows server
2003. Now in events i can see that he is tring various account names but
till now always Failure Audit. (i hope i will find solution till he find