Guides | B4 - Bye Bye Big Bro

📄️ Unblocking a site

Find a bypass strategy for a blocked site with Discovery, apply it as a set, and check that it works.

Adding domains, GeoSite categories, addresses, GeoIP categories and networks to a set, from the set editor, the Traffic page or the dashboard.

Let the watchdog search for a new strategy when a set stops working, and fall back to a backup set.

Send the traffic of selected sites through a VPN tunnel or a second uplink of the router, and everything else by the normal route.

Hand the connections of selected sites to an upstream SOCKS5 proxy, such as Xray or sing-box, without proxy settings on the devices.

How a set answers DNS for its domains - another resolver, DNS over HTTPS, pinned addresses, the IPv4 fallback and ECH keys.

Blocking ads, trackers or any site for every device on the network with a block set.

Give DPI bypass only to some devices, exclude devices from it, or limit one set to some devices.

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Turning a zapret or byedpi command line or configuration file into b4 sets.

A login, HTTPS, and what the Expose to internet switches open and cannot open.

How a b4 routing set and Xray's TUN inbound share the router, and the two arrangements that work.

Mark a set's traffic with a DSCP value, so the router in front of b4 can send it through a VPN or a second uplink.

Letting an AI application read b4's state over MCP and, when allowed, change settings.

Mirrors, a personal Cloudflare Worker and installing from a file, for networks where b4 cannot download from GitHub.