VPN connection using TLS protocol with openVPN
I send a request in my university to have access through VPN and through the manual they provide i add in the firefox my personal certificate and then download it as a .p12 file.
Now i want to use this file to connect through the vpn but im little confused.
All tutorials i saw in internet in the config file of openvpn used .crt and .key files for ca , cert and key directives. Also i have to use and a .key file for the TLS connection but cannot understand where to find it (for tls-auth directive).
The only files that i have are the RootCA.pem (University's public key) and the cert.p12 that i've got from firefox.
Can someone give a hint on how to achieve a connection on the VPN?
Thanks in advance!