Understanding and creating the certificate request & Private Key

Question

So I'm creating an RapidSSL on a Linode VPS for a Ruby on Rails - Spree Application.

I'm very new to SSL and in the documentation it's asking: to put in the name of your server where it says server.

My Question: How do I figure out the server name of my VPS on Linode?

RapidSSL Documentation https://knowledge.rapidssl.com/support/ssl-certificate-support/index?page=content&actp=CROSSLINK&id=SO17540

Snippet:

Login to your server via your terminal client (ssh). At the prompt, type:

openssl req -new -newkey rsa:2048 -nodes -keyout server.key -out server.csr

where server is the name of your server. //end of snippet

Any other caveats to avoid would be most appreciated.

Answer 1

One of your input's when creating the certificate says:

Common Name (eg, your name or your server's hostname) []:

And in the page you mentioned, you can read:

Common Name (CN): The Common Name is the Host + Domain Name. It looks like "www.company.com" or "company.com".