사이트

http://h4ru.com
http://groups.google.com/group/bugtruck
http://securityproof.net/
http://wowhacker.org/
securityplus
http://www.sans.org/reading_room/whitepapers/firewalls/leveraging-load-balancer-fight-ddos_33408
http://webdir.tistory.com/116
한국정보통신노동조합 http://it.nodong.net/zbxe/