Can I perform a local test for DNS leaking?

Question

I want to test that the connection from my local machine to my VPN is set up correctly, specifically that I do not have DNS leaks.

I am aware of web-based tools like dnsleaktest.com but they aren't suitable for repeated and/or scripted testing.

Is it possible to perform a local test for DNS leaks?

that other question you linked mentions the actual JS code used *client-side*: https://github.com/piwik/piwik/blob/master/js/piwik.js — schroeder, Oct 18 '17 at 10:20

score 1 · Answer 1 · answered Oct 19 '17 at 09:48

DNSleak inspects DNS packets on the local network interface to detect leaks. Unlike web-based solutions, it works at the local computer level. No third party servers are used and DNS leak result is a true / false response. See the README for more details.

Installation instructions for Debian-based systems (usage instructions in README):

# download code
git clone https://github.com/emanuele-f/DNSleak.git

# install prerequisites
sudo apt install libpcap0.8-dev libndpi-dev pkg-config

# install from source
cd dnsleak
make
sudo make install PREFIX=/usr install

# basic usage
sudo dnsleak <interface>

Can I perform a local test for DNS leaking?

1 Answers1