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Explain SSL to me
Sorry for the noob question, but can someone clearly explain ssl to me?
Mainly I want to know what I need to get ssl? And how long it lasts?
Would ssl apply to any sub domains?
Would ssl apply to any other domains that are cname set to the ssl domain? Eg. Example2.com cname set to example.com, and example.com has a ssl.
Also what is the more common benefit of having ssl?
Thanks in advance.
Comments
http://info.ssl.com/article.aspx?id=10241
https://www.gogetssl.com/ Lasts for a year.
Only with wildcard ssl, which is very expensive. (Often 100s of dollars per year.)
No.
Identity verification and encryption.
You'll need a domain, a server with a webserver installed (Apache, Ngninx, etc) or even a shared web host with a dedicated IP. SSL certificates are like domains, the minimum length i've seen is 1 year. After the first year, you renew it.
You can buy an SSL for a subdomain. If you want the SSL to work with xx.com and x.xx.com you'll need to buy a Wildcard SSL.
Nope
Security and encryption.
As everyone above said, the standard SSL cert won't allow this. But you can also place Example2.com as a Subject Alternative Name (SAN) These certs also tend to be called UCC or multi-domain certs.
A less supported alternative for having a single server host multiple SSL secured domains is vhosting using SNI. Aside from Windows XP and some older mobile browsers, it's pretty well supported. You'd end up with individual SSL certs for each vhost.