Unable to change the SSL port

Hello,

I’m new to OwnCloud. My company uses it and it is also accessible from outside the LAN(basically, we have a virtual IP on our Fortinet with a firewall rule).

I need to change the https port used by Onwcloud because i need this port and the same Public IP to work with another website/server on port 443.

I’ve tried every but i’m unable to make it works with another port.

I’m using version 9.0 on CentOS 7.

Could someone help me please?

Have you considered reverse proxying by host name instead of using non-standard ports?