Taken from: https://translate.opnsense.org/

add a link to create a CA

The local IP isn't used anywhere and the remote subnet assignment
also seems off, but since this works I'll leave it for somebody
else to maintain when it's moved to the plugins.

This can be a virtual ip or the real one, otherwise it just won't
work.  Relax the previous restriction.

Added ability to change the hostname and admin email in Proxy