| 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 |