TCP/IP Frequently Asked Questions
   http://www.faqs.org/faqs/internet/tcp-ip/tcp-ip-faq/part1
   http://www.faqs.org/faqs/internet/tcp-ip/tcp-ip-faq/part2
Computer Virus Frequently Asked Questions for New Users
   http://www.faqs.org/faqs/computer-virus/new-users
   alt.comp.virus Frequently Asked Questions
   http://www.faqs.org/faqs/computer-virus/alt-faq/part1/index.html
   http://www.faqs.org/faqs/computer-virus/alt-faq/part2/index.html
VIRUS-L/comp.virus Frequently Asked Questions
   http://www.faqs.org/faqs/computer-virus/faq/
Firewalls Frequently Asked Questions
   http://www.faqs.org/faqs/firewalls-faq/