WHS 2011 Web Access Setup

In order to be able to access your WHS 2011 server remotely via the web you'll  have a couple of setup steps.

1. Enable Web Access. Open the Dashboard and one of the tasks will be enabling the web access.  It will enable it but it may fail due to router settings.

2. Enable port forwarding on your router.  Technically, you could DMZ the server but its not secure or the preferred method.  Port forwarding is a better option.  You'll want to record the internal IP that your server is on and forward the appropriate ports to your server.

Ports to forward:
443 is HTTPS which is what the remote access site included with WHS will run under.
3389 is the RDP port if you want to remotely access your server using Remote Desktop.
80 is HTTP is you're going to host a website or something.

There are other ports for mail, ftp, etc if you're interested in enabling those for your purposes.

If you're looking for a free solution to access your server with a friendly name rather than the public IP (which can change) I would recommend looking at No-Ip.com.  They have an executable that can run as a service to update their DNS when yours changes.  So you get a friendly IP even without a static public IP and its free.