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@jauderho
jauderho / gist:6b7d42030e264a135450ecc0ba521bd8
Last active October 1, 2025 10:56
HOWTO: Upgrade Raspberry Pi OS from Bullseye to Bookworm
### WARNING: READ CAREFULLY BEFORE ATTEMPTING ###
#
# Officially, this is not recommended. YMMV
# https://www.raspberrypi.com/news/bookworm-the-new-version-of-raspberry-pi-os/
#
# This mostly works if you are on 64bit. You are on your own if you are on 32bit or mixed 64/32bit
#
# Credit to anfractuosity and fgimenezm for figuring out additional details for kernels
#
@diegorodrigo90
diegorodrigo90 / garmin-express-wine.md
Last active September 15, 2025 03:15
Installing garmin express in linux with wine

First we start by creating a wineprefix and installing our prerequisites from terminal:

WINEARCH=win32 WINEPREFIX=/home/$USER/GarminExpress winetricks dotnet452 vcrun2010 corefonts
WINEARCH=win32 WINEPREFIX=/home/$USER/GarminExpress winetricks win7
@lizthegrey
lizthegrey / attributes.rb
Last active August 29, 2025 15:40
Hardening SSH with 2fa
default['sshd']['sshd_config']['AuthenticationMethods'] = 'publickey,keyboard-interactive:pam'
default['sshd']['sshd_config']['ChallengeResponseAuthentication'] = 'yes'
default['sshd']['sshd_config']['PasswordAuthentication'] = 'no'
@luk6xff
luk6xff / ARMonQEMUforDebianUbuntu.md
Last active October 27, 2025 03:29 — forked from bruce30262/ARMDebianUbuntu.md
Emulating ARM with QEMU on Debian/Ubuntu

You might want to read this to get an introduction to armel vs armhf.

If the below is too much, you can try Ubuntu-ARMv7-Qemu but note it contains non-free blobs.

Running ARM programs under linux (without starting QEMU VM!)

First, cross-compile user programs with GCC-ARM toolchain. Then install qemu-arm-static so that you can run ARM executables directly on linux

If there's no qemu-arm-static in the package list, install qemu-user-static instead

@sarthology
sarthology / regexCheatsheet.js
Created January 10, 2019 07:54
A regex cheatsheet 👩🏻‍💻 (by Catherine)
let regex;
/* matching a specific string */
regex = /hello/; // looks for the string between the forward slashes (case-sensitive)... matches "hello", "hello123", "123hello123", "123hello"; doesn't match for "hell0", "Hello"
regex = /hello/i; // looks for the string between the forward slashes (case-insensitive)... matches "hello", "HelLo", "123HelLO"
regex = /hello/g; // looks for multiple occurrences of string between the forward slashes...
/* wildcards */
regex = /h.llo/; // the "." matches any one character other than a new line character... matches "hello", "hallo" but not "h\nllo"
regex = /h.*llo/; // the "*" matches any character(s) zero or more times... matches "hello", "heeeeeello", "hllo", "hwarwareallo"
@rafaeltuelho
rafaeltuelho / linux-mcast-net.md
Last active December 27, 2022 10:53
Linux Multicasting Network troubleshooting...
  • to see mcast group information
ip maddr show
  • to see if mcast is enabled on your current kernel
grep "MULTICAT" /usr/src/kernels/<kernael version>.x86_64/.config
@plepe
plepe / gist:52ecc9f18efb32c68d18
Last active October 21, 2025 13:49
MDADM and LVM cheat sheet

mdadm

Glossary:

  • md: multiple devices
command description
cat /proc/mdstat show status of all raids
mdadm --detail /dev/md0 detailed status of raid md0
@hdo
hdo / gist:6027504
Last active December 13, 2023 23:20
import struct
import sys
import time
import json
from struct import *
from twisted.web import server, resource
from twisted.internet.protocol import DatagramProtocol
from twisted.internet import reactor
from twisted.application.internet import MulticastServer
@tylerneylon
tylerneylon / learn.lua
Last active September 27, 2025 10:19
Learn Lua quickly with this short yet comprehensive and friendly script. It's written as both an introduction and a quick reference. It's also a valid Lua script so you can verify that the code does what it says, and learn more by modifying and running this script in your Lua interpreter.
-- Two dashes start a one-line comment.
--[[
Adding two ['s and ]'s makes it a
multi-line comment.
--]]
----------------------------------------------------
-- 1. Variables and flow control.
----------------------------------------------------
@cosimo
cosimo / parse-options.sh
Created September 21, 2012 09:31
Example of how to parse options with bash/getopt
#!/bin/bash
#
# Example of how to parse short/long options with 'getopt'
#
OPTS=`getopt -o vhns: --long verbose,dry-run,help,stack-size: -n 'parse-options' -- "$@"`
if [ $? != 0 ] ; then echo "Failed parsing options." >&2 ; exit 1 ; fi
echo "$OPTS"