I'm reading about how to install SSL in the linode.com library. Why would one choose the commercial approach over the subjectaltname approach? The subjectaltname approach allows the flexibility to host multiple secure DNS while the commercial approach does not. So why not just stick with the subjectaltname approach?
If you have multiple sites to secure on one server, using SubjectAltNames (with a SAN or UC SSL certificate) is a great solution. It is slightly more secure to use separate certificates for each site, but the difference is negligible in most cases.