Accessing Multiple services using limited ports?

Question

My office allows access of "free internet" servers at :80 (and :443).

What if my server should have several services (https, ssh, vnc etc), that need to be accessed from this restricted subnet?

My server has an own domain, e.g. mydomain.net, My idea was to create as many tap interfaces as many services I would like to have and bind each services to its own tap interface at port :80 and each service should have its own subdomain i.e www.mydomain.net, ssh.mydomain.net, vnc.mydomain.net.

Could this work? What else do I need to make this work?

Answer 1

The thing is that circumvention is also possible by disabling direct proxy script download and set direct internet access, in that case there is no need set up service-subdomain multiplexing.

It could also be possible to set httpd:80 and everything else on 443 where some php script switches which service is running at a given time. Although the question is not how to shoot, but what are steps of the weapon production.