Pi-hole: Network-wide ad blocking
What finally got me to setup pi-hole on an old Raspberry Pi was getting an LG OLED TV. The webOS apps for YouTube and Plex are pretty convenient, but the TV was absolutely packed with ads via the home screen and pop-up toasts. To add insult to injury, the home screen would lag for several seconds at boot while it pulled down all those ads. And then I discovered that even after opting out of all the telemetry options, it was making DNS queries for _several_ data mining services that analyze what's being shown on the TV. I didn't Wireshark it to see what API calls it was making, but clearly opting out in the menu wasn't enough. After some passes of scanning the pi-hole logs and adding to the blacklist, my TV is snappier and ad-free. :) Definitely will not be going with LG for my next TV, though. It's mind blowing to me that this is the user experience on a TV that costs over $1k.<p>As for the pi-hole setup itself, it's working great. It's a great backup to locally installed adblockers, and I have my EdgeRouter as the primary DHCP DNS server, which makes requests to pi-hole. Both the router and pi-hole have caching, and my DNS query latencies are good. Pi-hole also has a nice interface for pointing `.local` domains to local IP addresses, which is much easier than messing with dnsmasq settings on the EdgeRouter.