knowledge to windows security

TCP connections limit

Due to the warm attacks, M$ limit the number of TCP connections (to 10).
Apply patch from http://www.lvllord.de/?lang=en&url=downloads and reboot.

TCP/UDP Port 135, 139, 445

 http://www.grc.com/port_135.htm
 http://www.grc.com/port_139.htm
 http://www.grc.com/port_445.htm
 http://www.20cn.net/ns/hk/hacker/data/20020819051358.htm

Block through NAT

 Since those ports are supposed not to be exposed to the Internet,
 we block immediately them in incoming packets.

Stop NetBIOS over TCP/IP

 In "Internet Protocol (TCP/IP)" -> "Properties -> "Advanced" 
 -> "WINS" -> "Stop NetBIOS over TCP/IP", it will stop using port 139 (tcp).