Установка и настройка OpenVPN на Debian 8

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Using OpenVPN apt repositories
We maintain several OpenVPN (OSS) software repositories. To setup the repositories you need to change to the root user. Typically this is done using sudo:

$ sudo -s
Then import the public GPG key that is used to sign the packages:

$ wget -O - https://swupdate.openvpn.net/repos/repo-public.gpg|apt-key add -
Next you need to create a sources.list fragment (as root) so that apt can find the new OpenVPN packages. One way to do it is this:

$ echo "deb http://build.openvpn.net/debian/openvpn/<version> <osrelease> main" > /etc/apt/sources.list.d/openvpn-aptrepo.list
Where <version> can be one of

stable: stable releases only - no alphas, betas or RCs
testing: latest releases, including alphas/betas/RCs
release/2.3: OpenvPN 2.3 releases
release/2.4: OpenVPN 2.4 releases, including alphas/betas/RCs
and <osrelease> depends your distribution:

wheezy (Debian 7.x)
jessie (Debian 8.x)
precise (Ubuntu 12.04)
trusty (Ubuntu 14.04)
xenial (Ubuntu 16.04)
Examples:

$ echo "deb http://build.openvpn.net/debian/openvpn/testing jessie main" > /etc/apt/sources.list.d/openvpn-aptrepo.list
$ echo "deb http://build.openvpn.net/debian/openvpn/release/2.3 wheezy main" > /etc/apt/sources.list.d/openvpn-aptrepo.list
Now you're set for installing OpenVPN. Note that packages built for older operating system releases might work just fine on newer release of the same operating system.

Installing OpenVPN
On Debian/Ubuntu use

$ apt-get update && apt-get install openvpn