RealYukiSan

Live Boot arch linux:

qemu-system-x86_64 \
-drive format=raw,file=./archlinux-2024.04.01-x86_64.iso,index=0,media=disk \
-enable-kvm -machine pc -cpu host -m 1G -nographic

Since the above command using -nographic, so we don't start VNC server, thus don't forget to add console=ttyS0 to kernel parameter, press on the bootloader to modify kernel parameter

not related link:

RealYukiSan

The idea came from Nir Lichtman video with the title: 'Making Simple Linux Distro from Scratch'

this gist just re-document it in the form of text

Requirement

• compiled linux kernel
• compiled static-linked busybox
• installed qemu

Creating initramfs

RealYukiSan

const { spawn } = require('node:child_process')
const readline = require('node:readline');
const { stdin: input, stdout: output } = require('node:process');

const rl = readline.createInterface({ input, output });

const shell = spawn('sh')

shell.stdout.on('data', (data) => {
    process.stdout.write(data.toString())

RealYukiSan

const { get } = require("node:https")
require('dotenv').config();

function fetch(url) {
    return new Promise((resolve, reject) => {
        get(url, (res) => {
            let buff = Buffer.alloc(0);
            res.on("data", chunk => buff = Buffer.concat([buff, Buffer.from(chunk)]))
            res.on("error", reject)
            res.on("end", () => resolve(buff))

RealYukiSan

start the program in background

setsid ngrok tcp <port> &>/dev/null </dev/null

optional, if you want store the log, enable ngrok option --log=stdout

parse the json string with node

node -pe 'JSON.parse(process.argv[1])' $(curl -s http://localhost:4040/api/tunnels)
# atau

RealYukiSan

const { get } = require("node:https");

(async () => {
	const stickerName = ['Elaina_san', 'bagasgoyang']
	const token = "bot7003873933:AAFKl0LwWViMJIA34-qjbTh7nZwcNQr2hFs"
	const domain = "https://api.telegram.org"
	const file_baseurl = `${domain}/file/${token}`
	const api_baseurl = `${domain}/${token}`

	stickerName.forEach(async (name) => {

RealYukiSan

#!/usr/bin/sh

watch -n 0.1 "date +\"%d-%m-%Y %H:%M:%S.%9N\""

RealYukiSan

#!/bin/sh

threshold=10  # threshold percentage to trigger alert

while :; do
    capacity=$(cat /sys/class/power_supply/BAT1/capacity)

	  # If battery is discharging with capacity below threshold
	  if [ "${capacity}" -lt ${threshold} ];then
	    # Send a notification that appears for 300000 ms (5 min)

RealYukiSan

const socket = new WebSocket("ws://localhost:8080")

socket.onopen = function (e) {
    alert('[open] connection established')
    alert('sending data to server')
    socket.send('My name is who am i?');
}

socket.onmessage = function (ev) {
    alert(`[message] data received from srv: ${ev.data}`);

RealYukiSan

# Transparent SOCKS proxy
# See: http://darkk.net.ru/redsocks/

*nat
:PREROUTING ACCEPT [0:0]
:INPUT ACCEPT [0:0]
:OUTPUT ACCEPT [0:0]
:POSTROUTING ACCEPT [0:0]
:REDSOCKS - [0:0]