Pi-hole Installation & High Availability

Calendar February 27, 2026
Homelab, Networking
Pi-Hole, Dns, Keepalived, High-Availability, Synchronization

Pi-hole Installation & High Availability Guide#

1. Basic Installation#

Documentation: Pi-hole Official Install

Deployment#

# Automated install script
curl -sSL [https://install.pi-hole.net](https://install.pi-hole.net) | bash

Password Management#

Save the password provided at the end of the installation.

# To change or reset the web interface password:
pihole setpassword
# Alternative:
pihole -a -p

Network Integration (UniFi)#

  1. Go to UniFi Network App > Internet > [Your WAN/LAN].
  2. Change DNS Server to your Pi-hole IP.

2. Synchronization (Multi-Instance)#

For Pi-hole Version 6#

Use Nebula Sync for v6 compatibility.