Guide to Hardening Linux
http://www.antioffline.com/deviation/linux.html
Guide to Hardening BSD
http://www.antioffline.com/deviation/bsd.html
Apache 1.3 Security Tips
http://httpd.apache.org/docs/misc/security_tips.html
Apache 2.0 Security Tips
http://httpd.apache.org/docs-2.0/misc/security_tips.html
MySQL Security Tips
http://dev.mysql.com/doc/mysql/en/Security.html
NSA Secure Configuration Guides
http://www.nsa.gov/snac/index.cfm?MenuID=scg10.3.1
Microsoft Central Security Portal
http://www.microsoft.com/technet/security
