That only works on localhost, right? I am looking for a solution for intranet that doesn't require complex sysadmin skills such as setting up DNS servers and in

That only works on localhost, right? I am looking for a solution for intranet that doesn't require complex sysadmin skills such as setting up DNS servers and installing root certificates. This is for my customers who need to run my web server on the intranet while encrypting traffic (no need to verify that the server is who it claims to be).