What is the best practice for setting up a LAMP server in terms of linux users and groups? If there are multiple sites hosted on the same server, is it best to have a single us
If this is a small number of large sites, you may find that splitting your server into multiple VMs using something like Xen is a better option than simply segregating by user. This will improve the isolation of your sites, and make it easier to move a site to its own hardware if, in future, one starts to become much heavier on resource usage than the others.