1) I bought domain1.co.uk and domain2.co.uk and waited 48hrs to allow them to fully register
2) I enabled the Web Server on the NAS
3) I downloaded and installed WinSCP and added the following lines to the end of the apache.conf file located in /mnt/HDA_ROOT/apache/conf:-
---------------------
NameVirtualHost *:80
<VirtualHost *:80>
ServerName domain1.co.uk
ServerAlias
http://www.domain1.co.uk
DocumentRoot "/share/Qweb/domain1"
</VirtualHost>
<VirtualHost *:80>
ServerName domain2.co.uk
ServerAlias
http://www.domain2.co.uk
DocumentRoot "/share/Qweb/domain2"
</VirtualHost>
---------------------
... I then restarted the apache service to make the changes effective by selecting the Commands menu (within WinSCP) --> clicking Open Terminal then entering the following command line /etc/init.d/Qthttpd.sh restart and clicking Execute. Once it says "httpd started", click Close.
4) I created the folders on the Web Server (e.g. 192.168.1.100) that will contain each website:-
\\192.168.1.100\Qweb\domain1
\\192.168.1.100\Qweb\domain2
There must be an index.htm or index.html file in the root of both folders, otherwise you will get "page cannot be displayed" or similar.
5) I mapped the static IP address of the NAS to my domain name in the hosts file located at C:\Windows\System32\drivers\etc\, for example:-
192.168.1.100
http://www.domain1.co.uk
192.168.1.100
http://www.domain2.co.uk
... and tested that both websites work on the local network.
6) To make both websites work externally, I accessed my router configuration webpage and forwarded port 80 to the IP address of the NAS (e.g. 192.168.1.100) and tested it works externally (from work).