You need to do as they say, generate the CSR using your company domain name. For example, if you own a domain ourdomain.com, you can generate a SSL certificate with a Common Name (CN): web.ourdomain.com or www.ourdomain.com
. Basically any name plus a dot (.) followed by your domain name.
After you have done this, you will also need to register your domain name with your DNS provider so that the full address (eg. web.ourdomain.com or www.ourdomain.com
) resolves into the IP address on your Sonic firewall.