OpenVPN is a full-featured SSL VPN solution which can accomodate a wide range of configurations, including remote access, site-to-site VPNs, WiFi security, and enterprise-scale remote access solutions with load balancing, failover, and fine-grained access-controls (articles) (examples) (security overview) (non-english languages). OpenVPN implements OSI layer 2 or 3 secure network extension using the industry standard SSL/TLS protocol, supports flexible client authentication methods based on certificates, smart cards, and/or 2-factor authentication, and allows user or group-specific access control policies using firewall rules applied to the VPN virtual interface. OpenVPN is not a web application proxy and does not operate through a Web browser.
What's new in version 2.3.2
OpenVPN 2.3 is the first release with major new functionality from the OpenVPN community, change log can be found HERE
ReleaseJanuary 24, 2014
Date AddedJanuary 24, 2014
Operating SystemsMacintosh, Mac OS X 10.3, Mac OS X 10.4