Tunnelblick is a free,
open source
Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use the source code, design documents, or content of the product. The open-source model is a decentralized sof ...
graphic user interface for
OpenVPN
OpenVPN is a virtual private network (VPN) system that implements techniques to create secure point-to-point or site-to-site connections in routed or bridged configurations and remote access facilities. It implements both client-server architect ...
, a
Virtual Private Network (VPN), on
OS X
macOS (; previously OS X and originally Mac OS X) is a Unix operating system developed and marketed by Apple Inc. since 2001. It is the primary operating system for Apple's Mac computers. Within the market of desktop and la ...
and
macOS
macOS (; previously OS X and originally Mac OS X) is a Unix operating system developed and marketed by Apple Inc. since 2001. It is the primary operating system for Apple's Mac (computer), Mac computers. Within the market of ...
. It provides easy control of OpenVPN client and/or server connections.
History
The first stable release was version 3.0 in March 2010.
Issues
In January 2016, the Sparkle Updater component used by Tunnelblick was found to be vulnerable to a
man-in-the-middle attack
In cryptography and computer security, a man-in-the-middle, monster-in-the-middle, machine-in-the-middle, monkey-in-the-middle, meddler-in-the-middle, manipulator-in-the-middle (MITM), person-in-the-middle (PITM) or adversary-in-the-middle (AiTM) ...
. This security flaw has since been patched.
Any VPN or third party tool like Tunnelblick can cause connectivity problems while syncing with iCloud.
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References
{{reflist
External links
Official websiteGitHub page
Utilities for macOS