https://community.online.net/t/give-internet-access-to-private-network-servers/2805/7
Install OpenVPN server on jump host, and copy client config
wget https://git.io/vpn -O openvpn-install.sh && bash openvpn-install.sh
scp client.ovpn private:/root
Copy packages to private server
dpkg -l | grep "^ii"| awk ' {print $2} ' | xargs sudo apt-get -y --force-yes install --reinstall --download-only
scp -r /var/cache/apt/archives/* private:/var/cache/apt/archives/
Install OpenVPN on private server
apt-get install openvpn
apt-get -f install
Change IP in confg file
Run OpenVPN client
openvpn --daemon --config client.ovpn
ip route add 10.0.0.0/8 via < server_ip - 1 >
moby/libnetwork#779 (comment)