openvpn

• https://openvpn.net/index.php/open-source/333-what-is-openvpn.html

• https://openvpn.net/index.php/download/community-downloads.html

Install from source code

cd /tmp
wget https://swupdate.openvpn.org/community/releases/openvpn-2.3.13.tar.xz
tar xvif openvpn-2.3.13.tar.xz 
cd openvpn-2.3.13
./configure
make clean
make
make install

nano client.ovpn
auth-user-pass auth.txt # use and pass on auth.txt file
openvpn --config client.ovpn