kdmukai

Run Proxmox Backup Server (PBS) on a Proxmox VE host

Rather than set up even more infrastructure, I run Proxmox Backup Server on the same machine that's running a Proxmox VE host.

Install Proxmox Backup Server

Open a shell on your Proxmox VE host. We'll be installing PBS alongside Proxmox VE at the OS level. We will NOT run PBS inside a container.

plembo

VirGL for Linux KVM guests on Ubuntu Desktop

NOTE: Please don't ask for help here, it was a miracle that I got it to work at all. Seek answers in the usual places (yes, even Stackoverflow knows more than I do).

The question: How can I get 3d accelerated graphics for Linux guests in KVM without using PCI passthrough?

The short answer is: Use VirGL. The long answer is more complicated, because the VirGL project has had slow but steady progress towards actually working reliably, but the degree to which any given Linux distribution (or related driver project) is in sync has varied greatly over time. Even if it works right now, today, on your machine, it might not tomorrow. Note that even when it works, graphics performance is mediocre to downright painful.

Tested on Ubuntu Desktop 22.04.04 LTS with qemu-kvm, in an "Ubuntu on Xorg" session (not Wayland). Linux quests must have spice-vdagent installed (Ubuntu installs this by default). The hardware is a AMD 5600G d

Neo23x0

log4j RCE Exploitation Detection

You can use these commands and rules to search for exploitation attempts against log4j RCE vulnerability CVE-2021-44228

Grep / Zgrep

This command searches for exploitation attempts in uncompressed files in folder /var/log and all sub folders

sudo egrep -I -i -r '\$(\{|%7B)jndi:(ldap[s]?|rmi|dns|nis|iiop|corba|nds|http):/[^\n]+' /var/log

saidone75

#!/bin/bash

if [[ `id -u` -ne 0 ]]; then
    echo "Error: you must be root to execute this script!"
    exit 1
fi

TMPDIR="$(mktemp -d -p /tmp -t "tmp.XXXXXXXXXX")"
cd $TMPDIR

apogiatzis

name: Challenge Deployment
on: push

jobs:
  cancel:
    runs-on: ubuntu-latest
    steps:
      - name: Cancel Previous Runs
        uses: styfle/cancel-workflow-action@0.6.0
        with:

danvy

# Check these threads before proceeding:
# https://github.com/microsoft/WSL/discussions/5857
# https://github.com/microsoft/WSL/issues/5821
if (-Not ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] 'Administrator')) {
  $CmdLine = "-File `"" + $MyInvocation.MyCommand.Path + "`" " + $MyInvocation.UnboundArguments
  Start-Process -FilePath PowerShell.exe -Verb Runas -ArgumentList $CmdLine
  Exit
}
# Restart the Host Network Service 
Restart-Service -Force -Name hns

serverwentdown

import sys
import itertools

from netaddr import *

PREFIX = IPNetwork('fd00:0:3:1337::/64')
NAME = 'virtual0'
COUNT = 30

UPSTREAM=0

charlesroper

How to setup a practically free CDN using Backblaze B2 and Cloudflare

⚠️ Note 2023-01-21
Some things have changed since I originally wrote this in 2016. I have updated a few minor details, and the advice is still broadly the same, but there are some new Cloudflare features you can (and should) take advantage of. In particular, pay attention to Trevor Stevens' comment here from 22 January 2022, and Matt Stenson's useful caching advice. In addition, Backblaze, with whom Cloudflare are a Bandwidth Alliance partner, have published their own guide detailing how to use Cloudflare's Web Workers to cache content from B2 private buckets. That is worth reading,

netscylla

#!/bin/bash
##########################################
#
# Disass.sh (c) 2014
#  Leveraging other OS disassembly and AV tools to fingerprint potential malware
#
# License : 
# http://www.gnu.org/licenses/agpl-3.0.txt
#
# Author: Andy @ Netscylla 

verticalgrain

Below are the steps required to flash a NextThingCo CHIP or PocketCHIP from the command line, as of November 2018. The web flasher no longer works, and there are numerous errors when flashing from the command line, mostly due to broken dependencies. The following method works for flashing a CHIP as of November 2018:

Note: Flashing must be done on Linux. Tested on Ubuntu and Rasparian. Mac OS seems to not work.

1. Download and unpack the CHIP-SDK.zip from one of the following:

• https://archive.org/details/C.h.i.p.FlashCollection
• https://github.com/NextThingCo/CHIP-SDK
• https://github.com/Project-chip-crumbs/CHIP-SDK

2. Download and unpack CHIP-tools.zip from one of the following: