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5.3.3 OpenVPN
OpenVPN is an open-source software application that implements virtual private network (VPN)
techniques for creating secure point-to-point or site-to-site connections in routed or bridged
configurations and remote access facilities. It uses a custom security protocol that utilizes SSL/TLS
for key exchange. It is capable of traversing network address translators (NATs) and firewalls. It
was written by James Yonan and is published under the GNU General Public License (GPL).
OpenVPN allows peers to authenticate each other using a pre-shared secret key, certificates, or
username/password. When used in a multiclient-server configuration, it allows the server to
release an authentication certificate for every client, using signature and Certificate authority. It
uses the OpenSSL encryption library extensively, as well as the SSLv3/TLSv1 protocol, and
contains many security and control features.
OpenVPN Server
To create your OpenVPN Server, navigate to web menu
Network Settings->VPN Server
. Check the
radio button of OpenVPN to configure your OpenVPN server.

Enable : Tick to enable OpenVPN server.

Stealth :Certain deep packet inspection firewalls might not allow OpenVPNtraffic, stealth SSL
tunneling can disguise your OpenVPN traffic under the HTTPS traffic which is often seen as
HTTPS traffic by the DPI.

Certificate :Certificate is one of the client authentication methodsavailable inOpenVPN.

Port :OpenVPN service port, the default is 1194.

Stealth Port :Stealth service port, the default is 443.