hi. (i'm using win2k advanced server.) i'd like to know where i can find some tools, or suggestions on how to best test my websites security. besides patches and service packs, and let's say, a firewall allowing only SMTP, HTTP, HTTPS traffic through... any other suggestions? also... where is a good resource that explains in laymans terms what the difference between TCP, UDP, and ICMP packets are? as well ACK, SYN, etc. thanks! chris.