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The trick everyone misses: you don't need to keep the blocklist in RAM. Store the domains as sorted 40-bit hashes in flash and binary-search them. 7 MB of flash and are matched in 10 ms, using 50 KB of RAM.

What this is: a set of DNS blocklists that block ads, trackers, telemetry, phishing, malware, scams, and other unwanted domains network-wide. They work for any region and with every common DNS server, ad blocker, and content blocker.

The Pi-hole® is a DNS sinkhole that protects your devices from unwanted content without installing any client-side software.

cron is baked into the container and will grab the newest versions of your lists and flush your logs. This happens once per week in the small hours of Sunday morning.

使用 anti-AD 能够屏蔽广告域名，能屏蔽电视盒子广告，屏蔽 App 内置广告，同时屏蔽了一些日志收集、大数据统计等涉及个人隐私信息的站点，能够保护个人隐私不被偷偷上传。

Scan the devices connected to your WIFI / LAN and alert you the connection of unknown devices. It also warns if a "always connected" device disconnects. In addition, it is possible to check web services for availability.