Port Fetch Failing

Roger Marquis marquis at roble.com
Tue Jun 2 01:25:16 UTC 2015


>> Thanks to you and Chuck, I have a more reasonable (I think):
>> SSLCipherSuite  ALL:!ADH:!EXPORT56:RC4+RSA:+HIGH:+MEDIUM:+LOW:+EXP:-eNULL:-SSLv3:-SSLv2:TLS_RSA_WITH_AES_256_CBC_SHA:TLS_RSA_WITH_AES_256_CBC_SHA256

Reasonable depends on the use case.  Though this topic would be better
discussed on freebsd-security@, the good advice given on
<https://wiki.mozilla.org/Security/Server_Side_TLS>,
<https://www.insecure.ws/2013/10/11/ssltls-configuration-for-apache-mod_ssl/>
and <https://weakdh.org/sysadmin.html> tends to recommend:

  SSLCipherSuite HIGH:MEDIUM:!IDEA:!aNULL:!eNULL:!EXPORT:!DES:!3DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA
  SSLProtocol         all -SSLv2 -SSLv3
  SSLCompression      off
  SSLHonorCipherOrder on

and if you're using httpd 2.3.3 or higher:

  SSLUseStapling          on
  SSLStaplingResponderTimeout 5
  SSLStaplingReturnResponderErrors off
  SSLStaplingCache        shmcb:/var/run/ocsp(128000)

If you're processing credit cards SSLProtocol will need to be expanded to
"-SSLv2 -SSLv3 -TLSv1" by 2016/07 (for PCI compliance) and if you have
good reason to be paranoid and all of your clients are up-to-date, add
"-TLSv1.1".

Roger Marquis


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