Links

This section contains some further links covering topics that didn't find their way into this guide. Make sure to read through them, as they will help you improving your skills.

Apache HTTPd

• https://www.ironbee.com/
• http://www.modsecurity.org/ (http://www.packtpub.com/modsecurity-25/book)
• https://library.linode.com/web-servers/apache/mod-evasive
• http://httpd.apache.org/docs/2.2/suexec.html

HTTP(S)

• https://securityheaders.com/

PHP

• http://www.php.net/manual/en/ini.core.php#ini.disable-functions
• http://www.php.net/manual/en/ini.core.php#ini.open-basedir

Postfix

• https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Security_Guide/sect-Security_Guide-Server_Security-Securing_Postfix.html
• http://postgrey.schweikert.ch/

SSL

• https://sslcheck.globalsign.com/

System

• http://www.fail2ban.org/wiki/index.php/Main_Page
• https://www.owasp.org/index.php/Category:Vulnerability_Scanning_Tools
• https://github.com/glastopf/glastopf