ONLY do this if you understand what this script does and when you are sure that this method is applicable to your card!!!
I'm not responsible for your doings! You are flashing the firmware of your ethernet card, in the worst case you endup with a soft- or even hardbricked card! Also this might void your warrenty.
Having said this, if you are uncertain if this will work for your card be sure to dump the ROM with a RPI, RPI Pico or 3.3v moded SPI-Flash Programmer:
This script can be used to backup essential configuration files from the Proxmox Virtual Enivronment (PVE) host.
The script will create backups using tar with specified backup prefix and date and time stamp in the file name. Script will also delete backups that are older then number of days specified.
To create backup script that will be executed every day we can create backup script in /etc/cron.daily/ folder. We need to make it writeable by root (creator) only, but readable and executable by everyone:
touch /etc/cron.daily/pvehost-backup
Based on this blogpost.
To sign Git commits, you need a gpg key. GPG stands for GNU Privacy Guard and is the de facto implementation of the OpenPGP message format. PGP stands for ‘Pretty Good Privacy’ and is a standard to sign and encrypt messages.
Install with Homebrew:
$ brew install gpg
The Brother PTP300BT label maker is intended to be controlled using the official Brother P-Touch Design & Print iOS/Android app. The app has arbitrary limits on what you can print (1 text object and up to 3 preset icons), so I thought it would be a fun challenge to reverse engineer the protocol to print whatever I wanted.
Python code at the bottom if you want to skip the fine details.
Intitially I had a quick peek at the Android APK to see if there was any useful information inside. The code that handles the communication with the printer in Print&Design turned out to be a native library, but the app clearly prepares a bitmap image and passes it to this native library for printing. Bitmaps are definitely something we can work with.
An acquaintance needed a video kiosk that plays looping videos for an exposition booth. Since I have a bunch of Raspberry Pis lying around, I figured that it would be the perfect use case for using one of them.
Let's assume we start from scratch, with a unflashed, brand new SD card and your Raspberry Pi.
Install a version of Raspbian that includes the desktop. You can head over to : https://www.raspberrypi.org/downloads/raspbian/ and follow the instructions.
Once the image is downloaded, you can burn it to your SD card with tools like Etcher (https://www.balena.io/etcher/)
| /* | |
| * Arduino interface for the use of WS2812 strip LEDs | |
| * Uses Adalight protocol and is compatible with Boblight, Prismatik etc... | |
| * "Magic Word" for synchronisation is 'Ada' followed by LED High, Low and Checksum | |
| * @author: Wifsimster <wifsimster@gmail.com> | |
| * @library: FastLED v3.001 | |
| * @date: 11/22/2015 | |
| */ | |
| #include "FastLED.h" | |
| #define MAX_LEDS 156 |
| #!/bin/bash | |
| # | |
| # After you start your Pi-Hole in a Docker container according | |
| # to this: https://github.com/diginc/docker-pi-hole | |
| # | |
| # NOTE: On the Mac, I had to add "-h $(scutil --get LocalHostName)" to | |
| # the "docker run" command. Otherwise, the Mac hostname was being reset | |
| # to the random hostname generated for the container. | |
| # | |
| # Run this to replicate Will's setup here: |
| #!/bin/bash | |
| # Tom Hale, 2016. MIT Licence. | |
| # Print out 256 colours, with each number printed in its corresponding colour | |
| # See http://askubuntu.com/questions/821157/print-a-256-color-test-pattern-in-the-terminal/821163#821163 | |
| set -eu # Fail on errors or undeclared variables | |
| printable_colours=256 |
| #!/usr/bin/perl | |
| # Author: Todd Larason <jtl@molehill.org> | |
| # $XFree86: xc/programs/xterm/vttests/256colors2.pl,v 1.2 2002/03/26 01:46:43 dickey Exp $ | |
| # use the resources for colors 0-15 - usually more-or-less a | |
| # reproduction of the standard ANSI colors, but possibly more | |
| # pleasing shades | |
| # colors 16-231 are a 6x6x6 color cube | |
| for ($red = 0; $red < 6; $red++) { |
| # maximum capability of system | |
| user@ubuntu:~$ cat /proc/sys/fs/file-max | |
| 708444 | |
| # available limit | |
| user@ubuntu:~$ ulimit -n | |
| 1024 | |
| # To increase the available limit to say 200000 | |
| user@ubuntu:~$ sudo vim /etc/sysctl.conf |