Where can I find instructions on how to generate a CSR?

For your convenience, we created CSR generation instructions for the most popular servers and control panels:

 

Control Panels

UNIX-based servers Microsoft JAVA Other

cPanel

Apache/Nginx (OpenSSL)

IIS8

Tomcat

AWS

WHM

Mac OS

IIS7

Node.js

SonicWall

DirectAdmin

 

IIS5&6

GlassFish

Synology NAS

Webmin

 

Exchange 2013

 

Google Cloud platform

Vesta cpanel

 

Exchange 2013 Shell

   

Zimbra

 

Exchange 2007

   

Plesk 12

       

If your server type is not listed above, you can also look through the Comodo (now Sectigo) Certificate Authority's instructions.

NOTE: When you generate a CSR, a private key will also be generated at your web server. Please back up the private key or else you will not be able to install the certificate. Since this is a server-side process, we will not have access to the private key so please ensure to back up. If you lose it or if your feel that your private key has been compromised, you can generate a new CSR and request for a reissue of your certificate.