My partner has been using Openvpn extensively. It looks very reasonable
and has been quite trustworthy.
It is configured via commandline. The server seems to work on Windows,
too ("Vista and later"). There are good tutorials for CentOs, for example
https://www.digitalocean.com/community/tutorials/how-to-setup-and-configure-an-openvpn-server-on-centos-7
- Jussi
On 4.4.2016 20.57, david wrote:
(...)
> 1) As noted, it should be secure (anti NSA?)
> 2) Works on Centos 6 and Centos 7 and Windows 7 (and for the future,
> Windows 10)
> 3) Can be set up on the server with command line interfaces only (no GUI)