I found a nice topic to write about: CA pairs creation with openssl in Linux. A digital certificate tells an application (a browser, for example) that a public key is owned by the one who calls it. This allows relying parties to rely upon signatures made to this public key. OpenSSL is a free and open-source cryptographic library that provides several command-line tools for handling digital certificates. So, for now we are working on
root so first of all I suggest to
sudo -i and then do the rest.
In this case we are working on a directory...