An SSL certificate issued on FQDN (fully qualified domain name), so it is essential that the common name in the certificate will be matched with browsing website URL.
Unlimited server licensing is an excellent feature that most certificate authorities are provided with an SSL certificate. It means that a single SSL certificate can work on multiple servers.
For instance, let’s say you are running an e-commerce website hosted on multiple servers and for that you need a single SSL certificate. You do not need to spend extra money for the individual SSL certificate.
How to apply?
While ordering SSL certificate, there is an option of choosing the number of servers that you wish to secure. Here, select the number of servers and complete the buying process. After getting the certificate, you have to install the certificate where the CSR was generated earlier.
Now export the certificate file with the private key and then import the certificate file and private key to additional selected servers.
If you go with the Symantec SSL certificate, the authority will charge for each additional server license.