So, you’ve taken the step of insuring your privacy with the best VPN provider and client that your money could buy…but while doing your research, you learned that there is a way that governments, corporate entities, and even some rare rogue hackers will be able to use to get inside your secured tunnel. And, it’s true, where there’s a will there’s a way, and the tenacity of the unscrupulous types never seems to end. But you can make your tunnel more secure using a few measures that are easy to implement…
Disconnection – We All Get Them
One potentially disastrous occurrence is disconnection. It can happen at any time, and there a multitude of reasons behind them, but often the client software doesn’t warn you, or you may be away from you desk when it happens. We can fix this with simple software solutions. Two great solutions are VPNetMon, and VPNCheck. Both of these programs will detect VPN disconnection and will automatically stop any programs you specify. Don’t let anyone say that disconnects don’t happen, even the best VPN provider will occasionally have them.
DNS Leaks – Don’t Hire A Plumber
A DNS leak occurs when an application, or Windows is expecting a resolution to a query and get impatient. The application will then route around the VPN’s DNS tables to get the resolution through normal channels…This is bad, but you can solve this using a couple of tools. DNSLeakTest.com has the tool for detecting potential leaks, and VPNCheck has it built into their paid client. To plug the holes there’s an automatic program, dnsfixsetup, for those using OpenVPN, but everyone else will have to manually seal them, often the best VPN providers will have instructions on their websites for this.
Rule #2 – Double Tap
Like in the zombie movie, double taps aren’t a waste of ammunition…if you want to be absolutely sure. Encrypting an already encrypted connection will make your communications bulletproof. And it’s simple to do. In Windows you simply create a second VPN connection, connect to the first connection, then connect to the first connection without disconnecting from the first one. This can be done over the TOR network, but this network isn’t very suitable for file sharing activities.
Fix Flaws, Currency
PPTP/IPv6 has a rather large hole in the security, but it is easily repaired.
In Windows, open a command prompt and type in:
- netsh interface teredo set state disabled
Ubuntu users need to open a terminal window, log in as the super user, then type each line in one at a time, hitting enter after each line:
- echo “#disable ipv6″ | sudo tee -a /etc/sysctl.conf
- echo “net.ipv6.conf.all.disable_ipv6 = 1″ | sudo tee -a /etc/sysctl.conf
- echo “net.ipv6.conf.default.disable_ipv6 = 1″ | sudo tee -a /etc/sysctl.conf
- echo “net.ipv6.conf.lo.disable_ipv6 = 1″ | sudo tee -a /etc/sysctl.conf
That should close your PPTP/IPv6 holes up solidly, and my last suggestion is to use a currency and payment method that isn’t connected directly to you. This may come as a difficult proposition for some, but if you have the best VPN provider on your side, and if you follow the instructions I have given so far, this point is probably moot.
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