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@joseluisq
joseluisq / resize_disk_image.md
Last active July 12, 2024 14:00
How to resize a qcow2 disk image on Linux

How to resize a qcow2 disk image on Linux

This example takes olddisk.qcow2 and resizes it into newdisk.qcow2, extending one of the guest's partitions to fill the extra space.

1. qcow2 format

1.1. Verify the filesystems of olddisk.qcow2

@cmlewis89
cmlewis89 / arp-monitor.sh
Last active September 25, 2023 20:11
Bash script to monitor any new device connects to a network using arp
#!/bin/bash
#
# arp-monitor, an ARP tables monitor
# inspired by https://gist.github.com/maugern/30ace2764aafc683a802de2ed82f91af
#
# This script is intended to start on launch and run on an always connected device on a network (eg: server).
# It scans the network with 'arp -a' and sends a notification webhook whenever recognizes a new mac address on the network.
#
# For auto-run on login you can rename the script to a .command and add it to your Login items on Mac OS or
# modify the script to remove the loop and take a look at crontab
@Mau5Machine
Mau5Machine / docker-compose.yml
Last active July 4, 2024 16:57
Traefik Configuration and Setup
version: "3.3"
services:
################################################
#### Traefik Proxy Setup #####
###############################################
traefik:
image: traefik:v2.0
restart: always
@nealfennimore
nealfennimore / wireguard.conf
Last active July 21, 2024 13:38
Wireguard VPN - Forward all traffic to server
# ------------------------------------------------
# Config files are located in /etc/wireguard/wg0
# ------------------------------------------------
# ---------- Server Config ----------
[Interface]
Address = 10.10.0.1/24 # IPV4 CIDR
Address = fd86:ea04:1111::1/64 # IPV6 CIDR
PostUp = iptables -A FORWARD -i wg0 -j ACCEPT; iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE; ip6tables -A FORWARD -i wg0 -j ACCEPT; ip6tables -t nat -A POSTROUTING -o eth0 -j MASQUERADE # Add forwarding when VPN is started
PostDown = iptables -D FORWARD -i wg0 -j ACCEPT; iptables -t nat -D POSTROUTING -o eth0 -j MASQUERADE; ip6tables -D FORWARD -i wg0 -j ACCEPT; ip6tables -t nat -D POSTROUTING -o eth0 -j MASQUERADE # Remove forwarding when VPN is shutdown
@scottklarr
scottklarr / hdd_temps.py
Created August 21, 2019 15:40
Get S.M.A.R.T. HDD Temps and save to InfluxDB (for FreeNAS)
#!/usr/bin/env python
import os
import re
import subprocess
from influxdb import InfluxDBClient
from datetime import datetime
import time
@denizssch
denizssch / XpSerials.txt
Created July 21, 2019 00:13
Windows XP ALL Serial Keys :) (For testing purpose [Ex: VM or PenTest])
FCKGW-RHQQ2-YXRKT-8TG6W-2B7Q8
Windows XP PRO Corporate serial number S/N: Key: MQPWW-PGVKX-YPMKG-8DH3G-KC8PW
windows xp home edition serial number S/N: 034634-262024-171505-828316-729010-413531-800424-400442
Windows XP 64 serial number S/N: B2RBK-7KPT9-4JP6X-QQFWM-PJD6G
Windows XP serial number S/N: K6C2K-KY62K-DQR84-RD4QV-QB74Q
Windows XP Professional 64-bit Corporate Edition 5.2.3790.1830 serial number S/N: VCFQD-V9FX9-46WVH-K3CD4-4J3JM
Microsoft Windows XP Professional SP2 serial number S/N: YY8F2-3CKVQ-RKTRG-6JMDR-9DTG6
Windows XP Professional Service Pack 1 sp1 serial number S/N: F46YY - 2R8VQ - R8GMY - 926VK - 6BQ73
Windows XP Pro serial number S/N: KBWR7-76BD8-J7MDQ-KKG&C-V9Q2J
@artizirk
artizirk / gnupg_scdaemon.md
Last active July 12, 2024 20:07
OpenPGP SSH access with Yubikey and GnuPG

NB: This document describles a 'Old-School' way of using Yubikey with SSH

Modern OpenSSH has native support for FIDO Authentication. Its much simpler and should also be more stable with less moving parts. OpenSSH also now has support for signing arbitary files witch can be used as replacement of gnupg. Git also supports signing commits/tags with ssh keys.

Pros of FIDO

  • Simpler stack / less moving parts
  • Works directly with ssh, ssh-add and ssh-keygen on most computers
  • Simpler
  • Private key can never leave the FIDO device

Cons of FIDO

@chrisswanda
chrisswanda / WireGuard_Setup.txt
Last active July 10, 2024 12:03
Stupid simple setting up WireGuard - Server and multiple peers
Install WireGuard via whatever package manager you use. For me, I use apt.
$ sudo add-apt-repository ppa:wireguard/wireguard
$ sudo apt-get update
$ sudo apt-get install wireguard
MacOS
$ brew install wireguard-tools
Generate key your key pairs. The key pairs are just that, key pairs. They can be
@ageis
ageis / YubiKey-GPG-SSH-guide.md
Last active July 5, 2024 09:20
Technical guide for using YubiKey series 4 for GPG and SSH

YubiKey 4 series GPG and SSH setup guide

Written for fairly adept technical users, preferably of Debian GNU/Linux, not for absolute beginners.

You'll probably be working with a single smartcard, so you'll want only one primary key (1. Sign & Certify) and two associated subkeys (2. Encrypt, 3. Authenticate). I've published a Bash function which automates this slightly special key generation process.