Alik Khilazhev alikhil

A Short IPv6 Guide for Home IPv4 Admins

This guide is for homelab admins who understand IPv4s well but find setting up IPv6 hard or annoying because things work differently. In some ways, managing an IPv6 network can be simpler than IPv4, one just needs to learn some new concepts and discard some old ones.

Let’s begin.

First of all, there are some concepts that one must unlearn from ipv4:

Concept 1

Installing Home Assistant on OrangePi 5 Board

This tutorial will enable the use of Home Assistant on an OrangePi 5 board with the following characteristics:

OrangePi Debian OS
OS running on a SDCard
Home Assistant Supervised Instalation

The steps are a compilation with few modifications from instructions found over the web. Links are at the end.

Note

This tutorial is for Ubuntu & Squid3. Use AWS, Google cloud, Digital Ocean or any services with Ubuntu to follow this tutorial.

Install squid & update

sudo apt-get update
sudo apt-get install squid3
sudo apt-get install apache2-utils

The view ClusterRole doesn’t actually have permissions for the Cluster level objects like Nodes and Persistent Volume Claims. So we’ll have to create a new RBAC config.

First, we’ll create a new dashboard-viewonly ClusterRole:

---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  name: dashboard-viewonly

High-Performance Matrix Multiplication

This is a short post that explains how to write a high-performance matrix multiplication program on modern processors. In this tutorial I will use a single core of the Skylake-client CPU with AVX2, but the principles in this post also apply to other processors with different instruction sets (such as AVX512).

Intro

Matrix multiplication is a mathematical operation that defines the product of

	func Test$NAME$(t *testing.T) {
	type args struct {
	$ARGS$
	}
	type want struct {
	$WANT$
	}

	test := func(args args, want want) func(t *testing.T) {
	return func(t *testing.T) {

	#!/usr/bin/python

	import os
	import subprocess

	def process_log_for_svc(svc,out):
	print('Processing ' + svc)
	os.system("rm -f /storage/goaccess/imported-logs/imported-log.log")

	os.system('find /var/log/containers/ \| grep nginx-ingress \| xargs sudo cat \| grep ' + svc + ' >> /storage/goaccess/imported-logs/imported-log.log')

-#!/bin/sh
-# based on https://gist.github.com/ipedrazas/9c622404fb41f2343a0db85b3821275d
-# delete all evicted pods from all namespaces
-kubectl get pods --all-namespaces | grep Evicted | awk '{print $2 " --namespace=" $1}' | xargs kubectl delete pod
-# delete all containers in ImagePullBackOff state from all namespaces
-kubectl get pods --all-namespaces | grep 'ImagePullBackOff' | awk '{print $2 " --namespace=" $1}' | xargs kubectl delete pod
-# delete all containers in ImagePullBackOff or ErrImagePull or Evicted state from all namespaces

	#!/bin/bash
	fileid="FILEIDENTIFIER"
	filename="FILENAME"
	curl -c ./cookie -s -L "https://drive.google.com/uc?export=download&id=${fileid}" > /dev/null
	curl -Lb ./cookie "https://drive.google.com/uc?export=download&confirm=`awk '/download/ {print $NF}' ./cookie`&id=${fileid}" -o ${filename}

	FROM postgres:9.6

	RUN DEBIAN_FRONTEND=noninteractive apt-get update \
	&& apt-get install -y git \
	&& apt-get install -y build-essential \
	&& apt-get install -y postgresql-server-dev-9.6 \
	&& rm -rf /var/lib/apt/lists/*

	RUN mkdir -p hunspell \
	&& cd hunspell \