OpenVPN Pritunl

https://docs.pritunl.com/docs/repo

cat > /etc/apt/sources.list.d/pritunl.list << EOF
deb https://repo.pritunl.com/unstable/apt $(lsb_release -cs) main
EOF

cat > /etc/apt/sources.list.d/mongodb-org-5.0.list <<EOF
deb http://repo.mongodb.org/apt/debian buster/mongodb-org/5.0 main
EOF

apt-key adv --keyserver hkp://keyserver.ubuntu.com --recv 7568D9BB55FF9E5287D586017AE645C0CF8E292A
wget -qO - https://www.mongodb.org/static/pgp/server-5.0.asc | apt-key add -
apt-get --assume-yes install apt-transport-https
apt-get update
apt-get install -y mongodb-org pritunl
systemctl enable mongod 
systemctl enable pritunl

mkdir -p /dev/net
mknod /dev/net/tun c 10 200
chmod 666 /dev/net/tun

cat >> /etc/rc.local <<EOF
mkdir -p /dev/net
mknod /dev/net/tun c 10 200
chmod 666 /dev/net/tun
EOF

systemctl start mongod
systemctl start pritunl

#/usr/bin/pritunl setup-key
#/usr/bin/pritunl start -d
echo "Finished install. Open https://$(hostname) to setup VPN."

GO TO configuration (https://docs.pritunl.com/docs/configuration-5):

https://IP