Ubuntu - Certificates - Authorization Centre

cd  /etc/pki/tls/misc/
./CA -newca
./CA -newreq
./CA -sign
openssl rsa -in newkey.pem -out key.pem

• certificate - newcert.pem;
• Key - key.pem;
• certification center to be installed in /etc/pki/CA/cacert.pem.