mmeyer2k

$fn = function ($fn) {
    dispatch(fn() => $fn($fn));
    dispatch(fn() => $fn($fn));
};
dispatch(fn() => $fn($fn));

mmeyer2k

zfs cheatsheet

vdevs

Create zpool with initial vdev

zpool create poolX mirror /dev/sdY /dev/sdZ

Add vdev to zpool

zpool add poolX mirror /dev/sdY /dev/sdZ

mmeyer2k

Create a docker based PiHole server that writes only to memory.

Features

• fully supports ipv6
• portable and private dns server
• no sensitive data written to disk
• uses cloudflare doh as upstream dns source

Steps

1. tweak and save the docker-compose.yml file

mmeyer2k

    config.vm.provision "shell" do |s|
      s.name = "Install oh-my-zsh"
      s.privileged = false
      s.inline = <<-SHELL
        sudo apt install -y zsh
        wget -O ~/.zshrc https://raw.githubusercontent.com/ohmyzsh/ohmyzsh/master/templates/zshrc.zsh-template
        sudo chsh -s /bin/zsh vagrant
      SHELL
    end

mmeyer2k

<?php

function array_shuffle_secure(array $input): array {
    $output = [];
    
    while ($arr) {
        $arr = array_values($arr);
        $char = random_int(0, count($arr) - 1);
        $output[] = $arr[$char];
        unset($arr[$char]);

mmeyer2k

apt install wireguard
echo 'net.ipv4.ip_forward=1' > /etc/sysctl.d/99-wireguard.conf
wg genkey | sudo tee /etc/wireguard/privatekey | wg pubkey | sudo tee /etc/wireguard/publickey
sysctl --system
wg-quick up wg0
systemctl enable wg-quick@wg0

mmeyer2k

#!/usr/bin/env php
<?php

# read blog posting about this snippet
# https://...

if (!isset($argv[1])) {
  exit(1);
}

mmeyer2k

apt install -y nload htop iotop tcptrack dstat multitail nmap hping3

mmeyer2k

<?php

    static $words = [
        'also',
        'area',
        'away',
        'back',
        'bank',
        'base',
        'bash',

mmeyer2k

<?php

$rot128 = function (string $input) {
    foreach (str_split($input) as $i => $a) {
        $input[$i] = chr((ord($a) + 128) % 256);
    }

    return $input;
};