Category: Networking

  • IP Changed?

    IP Changed?

    Very simple Python script that tracks one or multiple hosts/domains for IP changes, and prints it in a Matrix room. Includes a Docker container to keep it running. I made it less noisy (i.e. won’t talk when the IP didn’t change) and as the IP of my DynDNS hosts hasn’t changed yet, there’s not much…

  • PoC: Betteruptime + Python-kasa

    PoC: Betteruptime + Python-kasa

    Content Update The provided scripts have been updated on 16 Jul 2023. Specifically the SmartStrip part was not working as intended. I’ve been a big fan of Betteruptime. I’ve started using it to monitor all my assets online (websites, DNS, ping, successful script runs) as well as my servers (using heartbeats). I have a few…

  • killwarp


    Is your company forcing Cloudflare Warp on you, and are you running on a Mac (with sudo access)? It probably sucks, spies on you, does MitM attacks, breaks most video conferencing tools, and is generally not very stable… Also… Zero trust! Add this function to your .bashrc or .zshrc (whichever shell you’re using*): Open a…

  • Bookworm: eth0 -> enX0

    Bookworm: eth0 -> enX0

    Started updating my Debian systems from Bullseye to Bookworm. The first thing I noticed was that ethX renamed to enXY. To get back to the old naming scheme, you can fix this by adding the following in /etc/network/interfaces: And reboot.

  • Allow ping from USG

    Allow ping from USG

    Because I keep forgetting and it takes me far too much time to go through one of my million sites where I set this up and find the right config… To allow a USG (Unifi Security Gateway) to reply to external (WAN) ping requests, do the following: That’s it… All this for Smokeping.


    I’ve revamped my Smokeping infra a bit since 2020. First off, starting to use the smokeping.eu1 domain that Bianco got 10 or so years ago instead of using weird URLs under domain. It’s running on four nodes as we speak: a virtual machine on a colocation server in Leaseweb, Amsterdam, NL -> a…

  • Remote desktop and Wake-on-LAN

    Remote desktop and Wake-on-LAN

    Shan uses her iPad a lot, but a lot of the more serious (interior design) work needs to happen on AutoCAD or Photoshop. That is just not going to work on an iPad. When we’re travelling (read: holiday) she’s carrying an old Lenovo ThinkPad 13 (great device!) just “in case” she needs to open AutoCAD…

  • Encryption

  • Sony stops DNS resolvers

    The Hamburg Regional Court today ruled that they would not suspend an existing injunction against Quad9 in a case filed by Sony Music Germany. The case centers around Sony Music’s demand that Quad9’s servers located in Germany stop resolving DNS names of third-party sites which are claimed to have URLs that contain copyright infringements. Source.…