Introduction
Roku Pi-hole DNS Redirector is a Python CLI tool that intercepts DNS queries from your Roku device and redirects them to a Pi-hole server for ad blocking — no router access required.
It works by positioning your machine between the Roku device and the router using ARP spoofing. DNS queries from the Roku are captured and forwarded to your Pi-hole, which filters out ad and tracking domains before returning responses to the device.
Who it’s for
This tool is designed for people who want Pi-hole ad blocking on their Roku but cannot configure their router’s DNS settings. Common situations include:
Apartment and dorm residents — your ISP-provided or building-managed router is locked down
Corporate or campus networks — network configuration is controlled by IT
Shared living situations — you don’t want to change DNS settings that affect other people
Roku’s locked DNS — Roku devices do not expose a DNS configuration option, so even setting a custom DNS on the router may not affect them
Key features
Intercepts DNS queries from a specific Roku device using ARP spoofing
Forwards queries to your Pi-hole server for filtering
Interactive text-based interface for one-off use
Command-line arguments for scripted or automated operation
Configurable log levels (DEBUG, INFO, WARNING, ERROR, CRITICAL)
Works on Windows, macOS, and Linux
Get started
How it works
The script sends spoofed ARP replies to your Roku, making it route traffic through your machine.
Your machine captures DNS queries originating from the Roku.
Those queries are forwarded to your Pi-hole server.
Pi-hole filters ad and tracking domains, then returns the response.
The response is sent back to the Roku device.
ARP spoofing intercepts network traffic. Only use this tool on networks you own or have explicit permission to test on. Unauthorized use may violate laws or network terms of service.
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