I'm installing Varnish Cache and varnish needs apache vhost to listen to the port is was assigned to, in my case port 8000. I copied ispconfig vhost.conf.master to conf-custom but the port has this:
I assumed that ISPConfig3 GUI has this setting under webserver settings but there is no field for VHost Port, I only see Apps VHost Port.
Is there any other part of ISPConfig3 GUI that hides apache vhost port? If no, is it safe to just change: