ERF12-2530 [ProxyAPI::ProxyException]: Unable to detect features ([Errno::EACCES]: Permission denied - connect(2) for

Problem:

Expected outcome:

Foreman and Proxy versions:

Foreman and Proxy plugin versions:

Other relevant data:
[e.g. logs from Foreman and/or the Proxy, modified templates, commands issued, etc]
(for logs, surround with three back-ticks to get proper formatting, e.g.)

logs
ERF12-2530 [ProxyAPI::ProxyException]: Unable to detect features ([Errno::EACCES]: Permission denied - connect(2) for 

https://projects.theforeman.org/projects/foreman/wiki/ERF12-2530