openvpn_tips.sh

sudo apt install openvpn
# Download and apply configuration file 
sudo cp ~/Download/NNN.ovpn /etc/openvpn/work.conf
rm ~/Download/NNN.ovpn

# Optional

sudo nano /etc/openvpn/work.pass
# Add password of private certificate
sudo chmod 600 /etc/openvpn/work.pass

# Start

sudo openvpn --config /etc/openvpn/work.conf
# Then enter password of private certificate, or
sudo openvpn --config /etc/openvpn/work.conf --askpass /etc/openvpn/work.pass

# Enable autorun

# Use 'sudo systemd-tty-ask-password-agent' after 'systemctl start', or:
sudo nano /etc/openvpn/work.conf
# Add line to file work.conf:
askpass /etc/openvpn/work.pass

# Control

sudo systemctl enable openvpn@work.service
sudo systemctl start openvpn@work.service
sudo systemctl status openvpn@work.service

# Disable autorun

sudo systemctl stop openvpn@work.service
sudo systemctl disable openvpn@work.service