Thank you for the post.
Please review the "Networking" section of the FileMaker Server 13 Technical Specifications page:
Required on all deployments: Ports 80, 443, and 5003 for FileMaker clients; 16000 for Admin Console users."
For additional explanation, see the following knowledge base article:
So a shorter answer is "no"
This is a pretty weak design - many sites rely on proxies, won't allow port 80 on non-IT controlled servers, etc.
But thanks for the quick response.
Thank you for the reply.
Port 443 and SSL are also options for the Web Server deployment.