client dev tun proto udp remote us123.nordvpn.com 1194 resolv-retry infinite nobind persist-key persist-tun cipher AES-256-CBC auth SHA512 verb 3 <ca> -----BEGIN CERTIFICATE----- [Certificate data here] -----END CERTIFICATE----- </ca> <cert> [Client certificate here] </cert> <key> [Private key here] </key>

Why?