Drallas

High Available Pi-hole failover cluster using Keepalived and Orbital Sync

Part of collection: Hyper-converged Homelab with Proxmox

Introduction

Keepalived is a Loadbalancer to add ‘high availability` to Linux systemen. See the Keepalived documentatie for more background information.

zrruziev

What is NUMA (Non-Uniformed Memory Access)

Non-Uniform Memory Access (NUMA) is one of the computer memory design methods used in multiprocessor systems, and the time to access the memory varies depending on the relative position between the memory and the processor. In the NUMA architecture, when a processor accesses its local memory, it is faster than when it accesses the remote memory. Remote memory refers to memory that is connected to another processor, and local memory refers to memory that is connected to its own processor. In other words, it is a technology to increase memory access efficiency while using multiple processors on one motherboard. When a specific processor runs out of memory, it monopolizes the bus by itself, so other processors have to play. , and designate 'access only here', and call it a NUMA node.

1. Check Nodes

lspci | grep -i nvidia
  
01:00.0 VGA compatible controller: NVIDIA Corporation TU106 [GeForce RTX 2060 12GB] (rev a1)

abellaismail7

/*
This will hide search box/bar in Firefox
you should enable legacy customization too
While this will hide some elements you should use this HotKeys
	show search box: CTRL-L or ALT-D or F6
	hide search box: Esc | Tab
	go-back: ALT - <=
	go-forward: ALT- =>
	reload: CTRL-r
	switch tabs: ALT-(1-8)

chaiyujin

Ubuntu: Install Kernel and Set GRUB Default Kernel

Install Kernel

Install the default kernel:

sudo apt install linux-generic

Set GRUB Default Kernel

1. Find entrance from /boot/grub/grub.cfg
   • Get the $menuentry_id_option:

advaith1

Intents Explainer

If you're wondering what Gateway Intents are, what Privileged Intents are, why your bot can't see statuses, or why your bot can't see member joins anymore, then this page should explain it to you!

if you do not know what intents are, please read this entire page

Intro

First, a short explanation of how bots work: bots can make requests over the REST (HTTP) API to retreive information and do actions, and they get real-time updates from Discord in the form of websocket gateway events. They can also fetch server members via the gateway.

Examples of gateway events you are probably familiar with are Message Create (a message was sent) and Guild Member Add (a user joined a server).

feedsbrain

#!/bin/bash
# Taken from: https://red-full-moon.com/make-hevc-qsv-env-first-half/

# 環境の最新化
sudo apt update
sudo apt dist-upgrade
# 必要パッケージのインストール
sudo apt install cmake make autoconf automake libtool g++ bison libpcre3-dev pkg-config libtool libdrm-dev xorg xorg-dev openbox libx11-dev libgl1-mesa-glx libgl1-mesa-dev libpciaccess-dev libfdk-aac-dev libvorbis-dev libvpx-dev libx264-dev libx265-dev ocl-icd-opencl-dev pkg-config yasm libx11-xcb-dev libxcb-dri3-dev libxcb-present-dev libva-dev libmfx-dev intel-media-va-driver-non-free opencl-clhpp-headers

# libvaのインストール

namndev

Things to do After Installing Ubuntu

Some package for dev

sudo add-apt-repository ppa:bamboo-engine/ibus-bamboo
sudo apt update
sudo apt install vim git zsh build-essential heif-gdk-pixbuf ibus ibus-bamboo gdebi
im-config -n ibus

AnatomicJC

Backup android app, data included, no root needed, with adb

Note: This gist may be outdated, thanks to all contributors in comments.

adb is the Android CLI tool with which you can interact with your android device, from your PC

You must enable developer mode (tap 7 times on the build version in parameters) and install adb on your PC.

Don't hesitate to read comments, there is useful tips, thanks guys for this !

sundowndev

Google dork cheatsheet

Search filters

Filter	Description	Example
allintext	Searches for occurrences of all the keywords given.	allintext:"keyword"
intext	Searches for the occurrences of keywords all at once or one at a time.	intext:"keyword"
inurl	Searches for a URL matching one of the keywords.	inurl:"keyword"
allinurl	Searches for a URL matching all the keywords in the query.	allinurl:"keyword"
intitle	Searches for occurrences of keywords in title all or one.	intitle:"keyword"

GAS85

OS: Ubuntu 18.04 Apache/2.4.18 1.0.2g-1ubuntu4.10
Aim: to install Aria2 with WebUI and secure Token.
IP Addr of your Aria2 server is 192.168.0.111
Your local IP network is 192.168.0.0/24

Aria 2

1. Installation

Install aria2 package: