Tunnelblick is a free, open source[1] graphic user interface for OpenVPN, a Virtual Private Network (VPN), on OS X and macOS. It provides easy control of OpenVPN client and/or server connections.

Tunnelblick
DeveloperThe Tunnelblick Project
Written inObjective-C
Working stateCurrent
Source modelOpen-source
Initial releaseMarch 2010 (2010-03)
Latest release3.8.7a / November 30, 2021 (2021-11-30)[2]
Repository
PlatformsmacOS
LicenseGNU GPLv2
Official websitetunnelblick.net

History

The first stable release was version 3.0 in March 2010.[3]

Issues

In January 2016, the Sparkle Updater component used by Tunnelblick was found to be vulnerable to a man-in-the-middle attack. This security flaw has since been patched.[4]

Any VPN or third party tool like Tunnelblick can cause connectivity problems while syncing with iCloud.[5]

References

  1. Harrison, Andrew (April 8, 2015). "Private Tunnel review: VPN charges only for the data you use".
  2. "Tunnelblick 3.8.7a Release Notes". GitHub. Retrieved 4 December 2021.
  3. "Old Release Notes - Tunnelblick - Free open source OpenVPN VPN client server software GUI for Mac OS X."
  4. Cimpanu, Catalin (January 31, 2016). "OS X Security Compromised via the Update Process of Many Popular Mac Apps". Softpedia.
  5. Brookes, Tim (2022-06-24). "How to Fix Apple Notes Not Syncing Over iCloud". How to geek. Retrieved 2022-07-21.
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