codelinx

Add passworddless sudo user via ansible for Ubuntu 22.04 VM's(for personal uses/learning purposes only)

For my learning environment, i needed to quickly and correctly add a passwordless sudo user(for Ubuntu 22.04 VM), since i'm learning ansible, i decided to write the necessary inventory and playbook file, after that i decided to make it customizable via a bash script. User can enter the new user details(name and password) and machine ssh connection information (ip, username and password). And this script first tests the connection via ansible's ping module, after successful operation, asks user to run the generated playbook(or exit and show the command to run the playbook)

These bash scripts:

• install python3,pip and sshpass(for ansible), and install ansible via pip
• asks user to enter the new user details (username and password) to generate the ansible playbook
• asks user to enter the remote machine information to generate the ansible inventory
• pings the inventory machines

codelinx

How to install Ubuntu Server and Minikube on Raspberry Pi 4 4GB+ (recommended)

Disclaimer: this step-by-step GIST has been created with no guarantees, I may have missed some steps because of distraction or chiptune improvised on-chair-dancing, so be patient and let me know if I must add or fix something.

This is the way for living long and prospering!

Download Raspberry Pi Imager

Download and install Raspberry Imager: https://www.raspberrypi.org/software/

codelinx

Updating expired GPG keys and their backup 🔑🔐💻

I use a GPG key to sign my git commits.

An error like this one might be a sign of an expired GPG key.

error: gpg failed to sign the data fatal: failed to write commit object

codelinx

if (process.argv.length < 3) {
  throw `Usage: ${process.argv[1]} path_prefix`
}
const PATH_PREFIX = process.argv[2]

const path = require('path')
const AWS = require('aws-sdk')
const ssm = new AWS.SSM()

function getParametersByPath(nextToken, callback) {

codelinx

Multiple SSH Keys settings for different github account

create different public key

create different ssh key according the article Mac Set-Up Git

$ ssh-keygen -t rsa -C "your_email@youremail.com"

codelinx

#!/bin/sh

# This script runs every other night at 04:56 CET on a webserver I maintain
# Results are always at: https://jult.net/block.txt ( or https://jult.net/block.txt.gz )
# And much smaller, stripped of BS; https://jult.net/bloc.txt
# For use in Tixati IP filter: https://jult.net/bloc.txt.gz
# And finally a txt file with just the bold IP-ranges: https://jult.net/bl.txt (or https://jult.net/bl.txt.gz )

# Download open block-lists, unpack, filter:
curl -s https://www.iblocklist.com/lists.php | grep -A 2 Bluetack | xargs wget -qO - --limit-rate=500k | gunzip -f | egrep -v '^#' > /tmp/xbp