Where do the SSL certificates come from?

[Jovani]

I don't know if I register SSL on my VPS or my shared hosting, where will it come from?
One more question, it is possible to create a SSL on my unmanaged VPS without register via a SSL provider?

thanks in advanced

 

[MightWeb]

You'll need to ask your provider whom they resell SSL with. SSL certificates are in the end (no matter where you order the from) issued by a certificate authority. Thawte, GeoTrust, Symantec and so on are examples of certificate authorities. Providers such as your own or NameCheap also resell their certificates, often at a lower price.

As for whether or not you can create an SSL without registering one - yes, you can. However, it won't be recognized by any visitor as a valid SSL certificate, as it would be self-signed.