Permission denied error in Apache logs for proxy
User has set up an Apache httpd proxy to present JIRA on port 80 and is on Linux.
Check the your httpd logs for the following error:
[error] (13)Permission denied: proxy: HTTP: attempt to connect to 192.168.1.1:8080 (jira.example.com) failed
SELinux is blocking httpd from working correctly.
Run the following command on the server to allow Apache to make outbound connections.
/usr/sbin/setsebool -P httpd_can_network_connect 1