Could someone shine some light on Till's commit here: http://git.ispconfig.org/ispconfig/ispconfig3/commit/6db036235287dbf4d7920027fa2118d239e0e6d5 I searched and could not find information on the bug. I've been using sockets with 2.4 and have not seen issues. Also, doesn't that code affect all OS running apache 2.4, not just CentOS 7?
This was a bug in CentOS 7 mod_proxy_fcgi module a year ago, it might has been fixed in the meantime by CentOS, have not tested it again. This bug had been confirmed by PHP or CentOS at that time, but I dont have the link at had at the mment. This fix does not affect other distributions as they use mod_fastcgi for the php-fpm connection to apache and the bug is in mod_proxy_fcgi which is only used on servers with CentOS 7.