I'm curious to see what information I'm blasting out to the various services I depend on for internet (ISP, DNS, probably Cloudflare, etc.).

Are there any easy to setup, entirely self-hosted tools I can run on my home network that would allow me to snoop on my own traffic.

I want more than just DNS, so I'm not just looking for pihole and its ilk. I want to see things like SNI and any non-protected traffic that any of the devices on my network might be sending that I just don't know about.

Ideally, it would be something I could leave on without affecting my speed/latency, but something to turn on occasionally and spot check would be better than nothing.

My router runs VyOS, so I should have quite a bit of flexibility in what I do with my traffic, though I never have figured out if/how to deploy custom software to it…

  • 𝖒𝖆𝖋@szmer.info
    link
    fedilink
    English
    arrow-up
    69
    ·
    1 year ago

    Oh, this the exact use case for a tool that I’m writing right now! It’s a daemon that runs on the gateway and acts as a DNS + DHCP + Firewall to monitor the activity of IoT devices.

    https://github.com/mafik/gatekeeper

    In the 1.6 (expected next weekend) I’m adding traffic graphs for each device and remote domain that it talks to.

        • Gooey0210@sh.itjust.works
          link
          fedilink
          English
          arrow-up
          1
          ·
          1 year ago

          I know, it’s pretty hard to create an old school 80s 90s look, even if you try, everything will try to look like 2023 anyway

          But my favorite looks are msdos and Macintosh, I’m usually trying to do those for my projects