![](https://adyanth.site/posts/redundancy-keepalived-gravitysync/keepalived+gravitysync-banner.png)
Redundancy for DNS: Keepalived + Gravity Sync
Requirement for High Availability In the previous post , I talked about how I use Pi-hole for my DNS resolution. DNS is the core component for the internet to work, so if I were to be patching or rebooting the host running Pi-hole, no devices in my home network would be able to use the internet. A simple fix would be to run two separate hosts with Pi-hole, like another Raspberry Pi Zero....