How do I enable perfect forward secrecy by default on Apache?

Question

Warning: please only use the recommendations for Apache configuration from the answers below. For which cipher(s) to use - security norms change over time a

Answer 1

Try this code in your ssl.conf:

SSLProtocol +TLSv1.2 +TLSv1.1 +TLSv1
SSLCompression off
SSLHonorCipherOrder on
SSLCipherSuite ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-RSA-RC4-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES256-SHA256:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES128-SHA256:DHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA:RC4-SHA:AES256-GCM-SHA384:AES256-SHA256:CAMELLIA256-SHA:ECDHE-RSA-AES128-SHA:AES128-GCM-SHA256:AES128-SHA256:AES128-SHA:CAMELLIA128-SHA

By the way,

Expert tip: The (1/n-1) split record trick is implemented in Firefox since a while. Thus, you can safely disable RC4 on Firefox in the advanced configuration menu. To do so, enter ‘about:config’ in your address bar, then search for ‘rc4′ and toggle all the found values to ‘false’. If you experience connections issues, toggle back those parameters to true.

https://cc.dcsec.uni-hannover.de/

This websites gives you information on the SSL cipher suites your browser supports for securing HTTPS connections.