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Tell your network to explain itself and then some
A unixdigest.com tutorial that goes beyond using arp-scan to list devices on a home network, showing how to track and identify every machine and run your own DNS so you can block ads and telemetry without relying on an ISP, Google or Cloudflare.
5 min · 1,044 words
Expose only share links of a private service with caddy
Solène shows how to use Caddy's forward_auth directive to publish only the share links of self-hosted services like Immich and Nextcloud that otherwise sit behind a VPN, shrinking their public attack surface.
11 min · 2,629 words
ARP! Tell your network to explain itself
Ben Calderon gives a friendly walkthrough of the Address Resolution Protocol: why local networks need both IP and MAC addresses, how arp-scan lists every device with its manufacturer, what an ARP exchange looks like in Wireshark before a ping, and how to inspect the Linux neighbour table.
2 min · 475 words
Turn a WiFi 7 Router into a 320Msps Software Defined Radio Receiver
A GitHub project that repurposes a WiFi 7 router as a ~320 Msps software-defined radio receiver, documenting the hardware path, sampling approach, and how to get RF samples out of commodity WLAN silicon.
5 min · 1,059 words
Self-hosted HTTP tunnels with SSH and nginx
Vincent Bernat shows how to expose a localhost preview to a friend with only a plain SSH client and an nginx server you control: ssh -R with a dynamic port, an nginx server_name regex mapping per-port subdomains, wildcard TLS via ACME DNS-01, and a helper script plus NixOS module.
4 min · 998 words
Sam Rose's interactive ngrok blog post really shows how Kubernetes liveness, readiness, and startup probes work—using webernetes browser demos to explain restart loops, rollout drops, and how probes make apps more resilient.
15 min · 3,465 words
Remotely access Home Assistant via Tailscale for freeOriginal article link with an AI-written directory summary
Kevin Purdy provides a text guide to accessing Home Assistant remotely through Tailscale, with a contribution from Alex Kretzschmar. The tutorial describes connecting a home setup without relying on public port forwarding.
1 min · 104 wordsagent-written
RFC8950: Announce IPv4 with an IPv6 next-hop
For the last few days I have been playing with RFC8950 setup, which allows routing of IPv4 on top of IPv6. While logically it’s quite simple, it has a very powerful application towards making “IPv4 an optional” feature riding on top of an IPv6 network (but without any tunnels!)
5 min · 1,159 words