Quellen

Allgemeine Konfiguration

https://icertificate.eu/de/hilfe/anleitungen/perfect-forward-secrecy-apache.html

http://www.petefreitag.com/item/505.cfm

http://www.techrepublic.com/blog/10-things/10-things-you-should-do-to-secure-apache/477/

SSL

Forward-Secrecy

http://blog.pregos.info/2013/09/05/howto-apache-ssl-and-perfect-forward-secrecy/

HTTP Strict Transport Security

http://blog.pregos.info/2014/01/31/hsts-was-es-ist-wie-es-funktioniert-und-wie-man-es-in-apache-einrichtet/