If I want to create multiple IP addresses ie one for each of my 10 subdomains but don't want to pay extra for them can I get round the problem using HTTP 1.1. I have been told this might work but don't understand how?
HTTP1.1 allows you to create multiple name based virtual hosts all with the same IP address. So you could set up each subdomain as a separate site, but the IP would be the same for all of them. This isn't a big problem, many hosting providers set up many hosts this way.
If you want separate IP addresses for each host (subdomain) there is no way of getting around needing 10 IP addresses.
> If you want separate IP addresses for each host (subdomain) there is no way of getting around needing 10 IP addresses.
At the hardware level, each computer connected to the net at any given time has a unique IP address. All of the packets of data scurrying around the net contain an IP address only and they are routed from computer to computer based on the IP. The DNS name gets assigned (for human convienence) AFTER the packets reach their final destination.