To generate a pair of private key and public Certificate Signing Request (CSR) for a webserver, "server", use the following command :
openssl req -new -nodes -keyout myserver.key -out server.csr
This creates a two files. The file myserver.key contains a private key; do not disclose this file to anyone. Carefully protect the private key.
In particular, be sure to backup the private key, as there is no means to recover it should it be lost. The private key is used as input in the command to generate a Certificate Signing Request (CSR).
You will now be asked to enter details to be entered into your CSR.
What you are about to enter is what is called a Distinguished Name or a DN.
For some fields there will be a default value, If you enter '.', the field will be left blank.
Country Name (2 letter code) [AU]: US State or Province Name (full name) [Some-State]: California Locality Name (eg, city) []: Los Angeles Organization Name (eg, company) [Internet Widgits Pty Ltd]: My Company Inc Organizational Unit Name (eg, section) []: Common Name (eg, YOUR name) []: mysubdomain.mydomain.com Email Address []: Please enter the following 'extra' attributes to be sent with your certificate request A challenge password []: An optional company name []:
Use the name of the webserver as Common Name (CN). If the domain name is mydomain.com append the domain to the hostname (use the fully qualified domain name).
The fields email address, optional company name and challenge password can be left blank for a webserver certificate.
Your CSR will now have been created. Send the server.csr file to certs at develooper.com.