This is a pre-production deployment of Warehouse, however changes made here WILL affect the production instance of PyPI.
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Project Description

DNS firewall

A proxy to inspect and mingle locally generated DNS queries. Optional tray icon an Gtk interface.


Inspecting and filtering DNS traffic generated by desktop applications can be tricky. Tools like tcpdump have no way to tell which running process generated a DNS query. Also, Netfilter cannot filter traffic by domain name and many domains resolve to IP addresses that change frequently.

A typical use case is to monitor browser, browsers plugins and extensions for suspicious home-calling or malicious/tracking javascript, or other application leaking data through DNS queries.

dns-firewall acts as a forwarding DNS resolver. It listens locally on port 53 and forwards only the allowed queries to external resolvers.

It detects the name of the process trying to resolve a domain name and applies filtering rules based on that.


  • Block DNS queries by application and domain, or return configurable IP addresses
  • Tray icon with activity indicators
  • Log window to inspect recent activity
  • Optionally resolve names using the Tor network


Create conf.yaml from conf.yaml.example

Binding to UDP port 53 is required. You can run the process as root or install and configure authbind:

sudo apt-get install authbind
sudo touch /etc/authbind/byport/53
authbind --depth 2 ./dns_firewall/ conf.yaml

# or

sudo ./dns_firewall/ conf.yaml

Add –tray to enable the tray icon and Gtk interface. Left-click on the tray icon to display the log window.

Update your /etc/resolv.conf with “nameserver”

Development status

In development. Testing and contributions are welcome!

Release History

Release History


This version

History Node

TODO: Figure out how to actually get changelog content.

Changelog content for this version goes here.

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Download Files

Download Files

TODO: Brief introduction on what you do with files - including link to relevant help section.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
dns-firewall-0.0.4.tar.gz (13.7 kB) Copy SHA256 Checksum SHA256 Source Dec 23, 2014

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