This generates a 4096-bit SSL-Certificate-Request for the domain ssl.axxeo.de.
openssl req -new -nodes -keyout ssl.axxeo.de-2013.key -out ssl.axxeo.de-2013.csr newkey rsa:4096
Generating a 4096 bit RSA private key …………………………….
……………………………………………………….++ …..
………………………………………………………………
….++ writing new private key to ‘ssl.axxeo.de-2013.key’ —–
You are about to be asked to enter information that will be incorporate
into your certificate request. What you are about to enter is what is
called a Distinguished Name or a DN. There are quite a few fields but
you can leave some blank For some fields there will be a default value,
If you enter ‘.’, the field will be left blank.
Country Name (2 letter code) [AU]:DE
State or Province Name (full name) [Some-State]:Niedersachsen
Locality Name (eg, city) []:Hannoversch Münden
Organization Name (eg, company) [Internet Widgits Pty Ltd]:axxeo GmbH
Organizational Unit Name (eg, section) []: Common Name (eg, YOUR name) []:ssl.axxeo.de
Email Address []:domains@axxeo.de
Please enter the following ‘extra’ attributes to be
sent with your certificate request A challenge
password []: An optional company name []:
You need to enter Country Name, State or Province Name,
Locality Name, Organization Name, Common Name, Email Address
For hardening your webserver, see https://hynek.me/articles/hardening-your-web-servers-ssl-ciphers/