kishan.panchal xyzkpz

Generation of a Self Signed Certificate

Generation of a self-signed SSL certificate involves a simple 3-step procedure:

STEP 1: Create the server private key

openssl genrsa -out cert.key 2048

STEP 2: Create the certificate signing request (CSR)

openssl req -new -key cert.key -out cert.csr

Activate Windows 8, 8.1, 10 and 11 Pro for Free

A guide how to get and activate Windows 8, 8.1, 10 and 11 Pro for free!

NOTE

If you see the Windows keyboard button in this guide; and you can't find it on your keyboard, you likely have/had Windows 10 which has the button . If you can't find that one, you likely have a PC that has been upgraded to Windows 8/8.1/10/11 from Windows 8.1/8/7/Vista/XP and other ones. If you have one of those, refer the Windows key button to as yours. A list of them is below:

Windows key buttons

- Windows 11

- Windows 10

Setup a Local Only SMTP Email Server (Linux, Unix, Mac)

1 - Point localhost.com to your machine

Most of programs will not accept an email using just @localhost as domain. So, edit /etc/hosts file to make the domain localhost.com point to your machine, including this content to the file:

127.0.0.1 localhost.com

2 - Install Postfix

Kubernetes Production Cluster Cheatsheet

Bootstraping clusters with kubeadm

Precheck

https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/install-kubeadm/#before-you-begin

One or more machines running one of:
- Ubuntu 16.04+

Install a 3-Node Kubernetes Cluster on Centos 7

This setup uses 3 machines:

Centos7
100GB HDD
32 GB RAM
8 CPU

All Machines

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"`

	For GCP Associate Cloud Engineer:
	A Cloud Guru:
	https://acloud.guru/learn/gcp-certified-associate-cloud-engineer

	Linux Academy:
	https://linuxacademy.com/cp/modules/view/id/238



	For AWS Cloud Practioner:

	#!groovy
	import groovy.json.JsonOutput
	import groovy.json.JsonSlurper

	def label = "mypod-${UUID.randomUUID().toString()}"
	podTemplate(label: label, yaml: """
	spec:
	containers:
	- name: mvn
	image: maven:3.3.9-jdk-8

	#!groovy
	# Best of Jenkinsfile
	# `Jenkinsfile` is a groovy script DSL for defining CI/CD workflows for Jenkins
	node {
	}