安道生網站技術練功房 - 分享經驗，累積智慧

這篇文章我覺得寫得不錯，滿周詳的，大家可以參考：
How to secure your new linux installation
http://maimon-it.blogspot.com/2007/08/how-to-secure-your-new-linux.html
另有PDF下載
http://www.4shared.com/file/21669224/a766a57e/Linux_Security.html

這篇也很棒，可以參考：
Linux Security Tips
http://www.faqs.org/docs/gazette/tips.html

Securing and Hardening Red Hat Linux Production Systems
http://www.puschitz.com/SecuringLinux.shtml

Server Security Requirements and References
http://www.it.northwestern.edu/policies/serversecurity.html