From the tutorial to secure ISPC with StartSSL here : https://www.howtoforge.com/securing...h-a-free-class1-ssl-certificate-from-startssl I quote a step here : You can't pick your own subdomain with PositiveSSL so you can't use server1. PositiveSSL only secure your domain and www subdomain. How do I solve this problem? My current setup for service is server1.mydomain.com and I can't secure server1 subdomain. Help me please. I just migrate from StartSSL.