Lukas Schauer lukas2511

Setting up Debian 13 on a Bluefield 2 as a standalone system

Somebody recently nudged me into the direction of NVIDIAs Bluefield 2 cards being a weird but fun system to play around with, so I did exactly that and I wanted to get rid of the vendor kernel and instead use a modern(ish) distro with a mainline kernel. Funnily enough that wasn't actually too hard.

In my case I got some DELL cards, part number 0JNDCM. They have 32GB of memory and 128GB of EMMC storage. Unfortunately the EMMC is highly redundant, which means that only about 40GB of storage is actually usable, and it's definitively not the fastest.

Change boot logo on ThinkPad X13

I had problems changing the boot logo on my ThinkPad X13 the official way. Using the Windows updater it silently failed, always showing the original logo instead. Using the bootable ISO updater it just showed various error messages (that had 0 results on google, wtf).

After some playing around I found a reliable way.

Prepare boot logo

Einleitung

Ich beschreibe hier kurz in eigenen Worten wieso bei dem Facebook-Ausfall am Abend des 04.10.2021 mehr betroffen war als nur die Facebook-eigenen Dienste. Ich arbeite nicht für Facebook, ich habe hier nur Informationen gesammelt und versuche diese in einfachen Worten weiterzugeben.

(Extrem)Kurzeinführung BGP

Im Internet gibt es Routen, diese geben an wie bestimmte Ziele erreicht werden können. Es gibt hierfür kein zentrales "Kartenmaterial", stattdessen sagt einfach nur jeder seinen Nachbarn,

We couldn’t find that file to show.

	#!/usr/bin/env python3

	# Usage:
	# - go to easyroam.de
	# - select manual options -> Open Network Config (ChromeOS)
	# - run this script as root: sudo python3 path/to/onc-to-nm.py path/to/easyroam_[...].onc
	# - connect to wifi (via gui or on console: nmcli conn up eduroam)
	# - optionally: enable autoconnect (via gui or on console: nmcli conn modify eduroam connection.autoconnect on)

	import json

	#!/bin/bash

	# don't set these too large, maps get huuuuuuge
	WIDTH=-1
	HEIGHT=72
	DURATION=60

	rm -rf frames
	mkdir -p frames

	#!/bin/bash

	set -e

	INFILE="rc3-mcr-11512-eng-deu-CIA_vs_Wikileaks_hd.mp4"
	OUTDIR="output/"
	FRAMES=1000

	#!/bin/bash

	pip install "$1" &
	easy_install "$1" &
	brew install "$1" &
	npm install "$1" &
	yum install "$1" & dnf install "$1" &
	docker run "$1" &
	pkg install "$1" &
	apt-get install "$1" &

	#!/bin/sh

	# This script configures a meraki ms220-8p switch completely from scratch
	# See https://leo.leung.xyz/wiki/Meraki_MS220-8P for rooting instructions

	# You can keep config and config.local completely empty, but i'd recommend to add a configuration
	# which isolates all ports from each other.
	# Without that you might have switching loops on bootup (unlikely since STP keeps longer to initialize
	# than it takes this script to take over, but it just feels cleaner).

	#!/usr/bin/env python3

	import gi
	gi.require_version("Gtk", "3.0")
	gi.require_version("Gst", "1.0")
	from gi.repository import Gtk, Gst, GLib

	import os, sys
	import time