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==Introduction==

==Introduction==

<b>Stunnel</b> is an open-source a proxy service that adds TLS encryption to clients and servers sting on a VPN network. TLS encryption provided by Stunnel can be used as an additional layer of encryption for data sent by OpenVPN. This procedure increases the security of the established connection and provides higher chances of passing a Deep packet inspection (DPI) check.

<b>Stunnel</b> is an open-source a proxy service that adds TLS encryption to clients and servers already existing on a VPN network. TLS encryption provided by Stunnel can be used as an additional layer of encryption for data sent by OpenVPN. This procedure increases the security of the established connection and provides higher chances of passing a Deep packet inspection (DPI) check.

This article contains instructions on how to configure an OpenVPN over Stunnel topology.

This article contains instructions on how to configure an OpenVPN over Stunnel topology.

         <pre>

         <pre>

16122 root      2992 S    /usr/bin/stunnel /tmp/stunnel.conf

16122 root      2992 S    /usr/bin/stunnel /tmp/stunnel.conf

         </pre>For OpenVPN use this command:

         </pre>For OpenVPN use this command:

         <pre>ps | grep openvpn | grep -v grep</pre>The output should look similar to this:

         <pre>ps | grep openvpn | grep -v grep</pre>The output should look similar to this: