DNS Toggle

Description

Simple GUI toggle for /etc/resolv.conf for us old dogs still handling DNS that way.

Features

• Toggling between 2 main DNS servers
• Toggle for a 3rd DNS server that overrides the 2 main (useful for VPN etc)
• Handles empty /etc/resolv.conf and creates it when we toggle
• Should leave alone things like domain, search and comments

Dependencies

• libgtk-3-dev
• librsvg2-dev

Build

Make file nameservers.conf before building, example:

nameserver 1.1.1.1
nameserver 8.8.8.8
nameserver 9.9.9.9

Then:

sudo apt install libgtk-3-dev librsvg2-dev build-essential
git clone git@github.com:ittykeys/dns-toggle.git
cd dns-toggle
make

Run

Please backup your precious /etc/resolv.conf before running:

sudo cp /etc/resolv.conf /etc/resolv.conf.bk

Then:

./dns-toggle

It will ask for authentication via pkexec when toggling.

Todo

• Detect and re-toggle previous state (and toggle state) properly after 3rd dns toggled (especially at startup).
• Detect and error out if /etc/resolv.conf is handled by another system.
• Future-proof for gtk4
• Add flag to auth immediately at launch, negating the need for auth every toggle
• Windows version (are network connection options exposed via win api?)
• Pack assets in executable
• Don't block main gui thread for auth (#3500)
• KDE widget (#3480)
• Option to modify DNS at startup (#3523)
• Mobile app (#3538)
• Temp file while active (#3544)

License

This project is licensed under the GNU General Public License - see the License file file for details.