Pritunl is an open source vpn server. Documentation and more information can be found at the home page pritunl.com
$ git clone https://github.com/pritunl/pritunl.git
$ cd pritunl
$ python2 server.py
# Open http://localhost:9700/$ git clone https://github.com/pritunl/pritunl.git
$ cd pritunl
$ vagrant up
$ vagrant ssh
$ cd /vagrant
$ sudo python2 server.py
# Open http://localhost:9700/$ git clone https://github.com/pritunl/pritunl.git
$ cd pritunl
$ python2 test_pritunl.py