mod_wsgi unable to connect WSGI daemon process

Question

I am using Easy apache 4, mod_wsgi, and Python 3.5. When I called a Django project in the server I got the following error:

(13)Permission denied: mod_wsgi (pid=24223): Unable to connect to WSGI daemon
process 'user123' on '/var/run/wsgi.8442.6.7.sock' as user with uid=3708.

Answer 1

Your Apache installation is likely set up to run with SECURE privileges mode. This means that the Apache child worker process is forked and privileges dropped before handling the request, which in this case is simply trying to proxy the request through to the mod_wsgi daemon process. The consequence of this is that it cannot connect to the socket for the daemon process, as it was setup with ownership to match the original Apache child worker process before privileges were dropped.

This is evident because the error message has uid in the range of a normal user and not the special apache or nobody user.

To fix it, you need to modify the WSGIDaemonProcess directive configuration and add the option:

socket-user=#3708

or:

socket-user=username

where username is replaced with the actual name of the user with uid of 3708.

The addition of this option seems to be required due to recent changes in CPanel configurations for Apache.