Drew, how I can delete the openvpn user, I tried different recommended method but none of them work…
Arbab Nazar

Certificate revocation for a user can be accomplished via:

sudo -s
cd /etc/openvpn/easy-rsa
source ./vars
./revoke-full username

To verify that the revocation was successful, you can view the key index and confirm that the first column contains an “R”:

grep username /etc/openvpn/easy-rsa/keys/index.txt