Okay what I would like to do is to be able to access ntop without defining the port number at the end of the url. What I have done is add a CNAME in my DNS server of 'ntop' so:

ntop.bashwork.net

I then added a entery in my /etc/services for ntop

ntop 3000/tcp

Now how would I link this all together so that ntop.bashwork.net would resolve to 192.168.1.104:3000?