CosmicDNS
A COSMIC panel applet that switches which DNS servers this device uses — one click between Cloudflare, Google, your Pi-hole, or the router's default — with an automatic DNS cache flush.
About
Sometimes you want your ad-blocking Pi-hole; sometimes you need it out of the way. CosmicDNS makes that a panel click: an orange badge when a custom DNS is forced, grey when the router's default is in use, and a popup with your saved servers — seeded with Cloudflare, Google and Quad9, editable and reorderable. Every switch flushes the DNS cache, so the change takes effect immediately.
The override follows your active network: unplug the LAN and join Wi-Fi, and the applet moves your chosen DNS to the new connection and cleans it off the old one, reacting instantly via nmcli monitor. Everything goes through NetworkManager — no daemon, no root, and tunnels/VPNs are deliberately left alone.
Highlights
- State at a glance — orange badge for a custom DNS, grey for the router's default
- One-click switching — saved server list with checkmarked active entry
- Automatic cache flush on every switch, plus flush-on-demand
- Follows the network — the override moves with you between LAN and Wi-Fi, instantly
- No daemon, no root — plain NetworkManager under the hood
- Self-updating from GitHub releases, opt-out in Settings
Install
git clone https://github.com/davidboulay/CosmicDNS.git cd CosmicDNS && ./install.sh
Prebuilt binaries are on the releases page.
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