![]() ![]() Simple edits to the OpenVPN configuration file(s) allow for a high level of customization (if supported by your provider). Get Tunnelblick Additional OpenVPN features Certainly, I detected no WebRTC leaks when testing Tunnelblick for this article. * OpenVPN 4.2.x protects against Web Real-Time Communication (WebRTC) leaks, so I presume Tunnelblick does too. Note that DNS leak protection is not enabled by default, and must be turned on (see How to use Tunnelblick later). Available in many languages – Tunnelblick is currently translated to more than 35 languages.įor more information on IP leaks when using a VPN, please check out my Complete Guide to IP Leaks.Web Real-Time Communication (WebRTC) leak protection*.Note that Tunnelblick does not support IPv6 routing, and so prevents IPv6 DNS leaks using the simple expedient of disabling IPv6 (optional). Full Domain Name System (DNS) leak protection – both Internet Protocol version 4 (IPv4) and Internet Protocol version 6 (IPv6).Tunnelblick offers the following features: Given how good Tunnelblick is (especially now that it features a kill switch), I do not see this as a problem. Small and new VPNs, in particular, often rely on Tunnelblick to provide Mac support. It is also worth noting that macOS is not quite as well supported by custom VPN clients as Windows is. It is also bloat-free and stable, which is more than be said for many custom VPN apps. This means that Tunnelblick is more secure than many custom clients, which can lag behind in this area. Open source aside, Tunnelblick always stays up-to-date with the latest version of OpenVPN, and the latest security patches for it. Open Source VPN Clients for my full thoughts on this issue. ![]() Now… I am usually a very strong advocate for using open source software, but I have doubts about its value when it comes to VPNs, as your VPN provider has full access to your internet traffic anyway. Most commercial VPNs offer custom Mac VPN apps, so why use Tunnelblick VPN? One reason is that it is open source, so you can be fairly confident that it is not doing anything it shouldn’t. Full tunnel configuration can be downloaded from. This will send all your network traffic via Chemistry's network when the VPN is on and may be slower. Switch to using a 'Full Tunnel' configuration file. ![]() Disable the IP address checking feature using the checkbox on the "Preferences" panel of Tunnelblick's "VPN Details" window.This setup gives the best network performance for videoconferencing, while still allowing you to access University-only resources. It happens because in Chemistry and SPRI we configure the VPN to only send network traffic destined for the University of Cambridge over the VPN link, and all other traffic goes direct to its destination. This warning appears when connecting using newer versions of Tunnelblick with our latest configuration files. (There is an option for a Security Code, please ignore, we don't use that.) Dealing with the warning: 'apparent public IP address was not different after connecting' Please note that the ChemNet username is your CRSID followed by not. If you are using Chrome as your web browser please type the credentials in, do not cut and paste as this has been proved not to work. These can be collected from and it is OK to tell Tunnelblick to save them. The credentials you should use are your ChemNet credentials. Select 'Connect Chemistry' from the TunnelBlick icon. Double-click 'chemistry.tblk' to install the configuration. ![]() ('chemistry.tblk' will not run from the Downloads folder. The configuration file is compressed, so double-click it to expand it: you should then get a file 'chemistry.tblk'. Īfter installing tunnelblick, download the config file. Download the stable latest version of Tunnelblick from. ![]()
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