Knocker

Self-hosted single-packet authorization gateway that opens homelab services on-demand for approved IPs only.

Webfreeglobal

Knocker is a free, open-source single-packet authorization service that acts as an on-demand access gateway for self-hosted homelab services. It integrates with reverse proxies like Caddy or with firewalld to keep services private by default, opening access to specific IPs only after a signed request, without requiring a persistent VPN connection. It's aimed at homelab operators who want to reduce their public attack surface while still allowing remote access.

Website

Full match profile

Behind the summary, Matchbox keeps a richer profile of Knocker - the signals our matcher actually reads to decide when to surface it. It stays private; claim the listing to see and control it.

Problem & pain-point mapping
Who we surface it to (audience fit)
What it's a strong alternative to
Trust & credibility signals

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