← Back to Projects
Networking / Privacy
Networking / Privacy
First Defence
Network-wide DNS Ad Blocker
First Defence is a local hardware-based ad blocker that enhances privacy and improves browsing speed by filtering traffic at the DNS level.
The system blocks intrusive ads and trackers across an entire network, preventing them from even reaching the user's devices.
By leveraging a Raspberry Pi as a dedicated DNS server, it ensures a cleaner, faster, and more secure internet experience for all connected clients.
Technologies Used
Raspberry PiDNS ManagementLinuxNetworkingShell Scripting
What I Learned
- ▹Configuring and managing a local DNS server
- ▹Network-wide traffic filtering and blacklisting
- ▹Linux system administration and optimization
- ▹Privacy-focused network architecture
- ▹DNS sinkhole implementation and troubleshooting
Unique Aspects
✦Device-agnostic ad blocking (works on Smart TVs, Mobiles, etc.)
✦Local DNS resolution for faster query speeds
✦Enhanced privacy by blocking telemetry and trackers
✦Centralized network control without client-side software
Items Required
- Raspberry Pi
- Micro SD Card (16GB+ recommended)
- Stable Power Supply
- Ethernet Cable / Wi-Fi Connection