OpenVPN an open-source technology and uses SSL(specifically the OpenSSL library and SSLv3/TLSv1 protocols. Now more and more Free VPN services come to the market, compare with all VPN protocols, the Open VPN is a very popular protocol offered by most VPN providers. You can use VPN for hiding IP addresses or Unblock websites from local ISP or government. VPN (Virtual private network) can encrypt all traffic for online safe surfing.
