- The way to leverage one phyical server is to run chrooted instances of Samba so you have multiple instances of Samba running on the same box but each serving your individual domains. It's not as elegant but it should work. I couldn't find a document on how to run chroot with Samba but you could use this example of best practices for chroot to give you an idea.
- The other solution would be to check out Xen, which would allow you to run seperate Linux virtual machines with an instance of Samba in each one. The latest SUSE, 9.3, supports this, as do many other Linux distributions. This approach would require a seperate IP and host name for each installation but it would allow you to keep everything seperate from a domain perspective but consolidated on the same machine.
This was first published in April 2005