After ruling out the trivial causes like missing permission to write to the file I'm looking for the cause of this. The file fcgid.conf provides only basic settings and I couldn't verify what port is it trying to open. How can I grant the permission?
Hint: Maybe the port is blocked by my system, but I didn't find any mention of the port no. in fcgid config.
This is the Apache error log. when a Fast CGI script is loaded:
[Tue Oct 06 14:16:24.235309 2015] [fcgid:error] [pid 23141:tid 139803208390720] (13)Permission denied: mod_fcgid: couldn't bind unix domain socket /var/run/httpd/mod_fcgid/23141.256
[Tue Oct 06 14:16:24.235351 2015] [fcgid:warn] [pid 23141:tid 139803208390720] (13)Permission denied: mod_fcgid: spawn process /var/www/html/azure/testfcgi.fcgi error
[Tue Oct 06 14:16:25.236606 2015] [fcgid:error] [pid 23141:tid 139803208390720] (13)Permission denied: mod_fcgid: couldn't bind unix domain socket /var/run/httpd/mod_fcgid/23141.257
[Tue Oct 06 14:16:25.236682 2015] [fcgid:warn] [pid 23141:tid 139803208390720] (13)Permission denied: mod_fcgid: spawn process /var/www/html/azure/testfcgi.fcgi error
[Tue Oct 06 14:16:26.237965 2015] [fcgid:error] [pid 23141:tid 139803208390720] (13)Permission denied: mod_fcgid: couldn't bind unix domain socket /var/run/httpd/mod_fcgid/23141.258
[Tue Oct 06 14:16:26.238043 2015] [fcgid:warn] [pid 23141:tid 139803208390720] (13)Permission denied: mod_fcgid: spawn process /var/www/html/azure/testfcgi.fcgi error
To fix the problem, fix permissions on the file and path reported by the server.