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Cheat Sheets

OpenAI Codex CLI Cheat Sheet – Commands, Shortcuts, Tips

Josphat Mutai - Modified date: March 20, 2026

How To

Add Kali Linux Official Repositories to sources.list

Josphat Mutai - Modified date: March 20, 2026

Cheat Sheets

Claude Code Cheat Sheet – Commands, Shortcuts, Tips

How To

Install Kali Linux 2025.4 – Step by Step with Screenshots

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OpenAI Codex CLI Cheat Sheet – Commands, Shortcuts, Tips

Modified date: March 20, 2026

kali linux login

Add Kali Linux Official Repositories to sources.list

Modified date: March 20, 2026

claude code cheat sheet commands shortcuts tips

Claude Code Cheat Sheet – Commands, Shortcuts, Tips

Modified date: March 20, 2026

install kali linux 20261 step by step

Install Kali Linux 2025.4 – Step by Step with Screenshots

Modified date: March 20, 2026

Ship Kubernetes Logs to External Elasticsearch with Filebeat and Fluentd

Modified date: March 20, 2026

install and use metasploit framework on kali linux

Install and Use Metasploit Framework on Kali Linux

Modified date: March 20, 2026

configure call transfer and forwarding in asterisk pbx

Configure Call Transfer and Forwarding in Asterisk PBX

Modified date: March 20, 2026

advanced asterisk ivr call queues dial by name and ari int

Advanced Asterisk IVR – Call Queues, Dial-by-Name, and ARI Integration

Modified date: March 20, 2026

secure asterisk and freepbx from voip fraud and brute force

Secure Asterisk and FreePBX from VoIP Fraud and Brute Force Attacks

Modified date: March 20, 2026

configure ivr in asterisk pbx with pjsip on linux

Configure IVR in Asterisk PBX with PJSIP on Linux

Modified date: March 20, 2026

kamailio centos 7

Install Kamailio SIP Server on Rocky Linux 10 / AlmaLinux

Modified date: March 20, 2026

RTPproxy installation ubuntu

Install RTPProxy from Source on Ubuntu 24.04 / 22.04

Modified date: March 20, 2026

Books

html books cover

Top Books to Master HTML & HTML5 in 2026

Modified date: March 6, 2026

Books For Mastering Apache Hadoop

Books For Mastering Apache Hadoop in 2025

Modified date: March 16, 2026

best books nodejs angularjs reactjs

Best Books to Master Node.js, AngularJS, ReactJS & ExpressJS

Modified date: March 16, 2026

Best Photoshop Design Mastery Books for 2025

Best Photoshop Design Mastery Books for 2025

Modified date: March 16, 2026

books to learn master linux

Books To Learn and Master Linux – (Beginners & Experts)

Modified date: March 16, 2026

linux kernel programming books

Best Linux Kernel Programming Books in 2025

Modified date: March 16, 2026

Ubuntu

ldap account manager add new user set shell home min 1

Install and Configure OpenLDAP Server on Ubuntu 22.04|20.04|18.04

Modified date: February 28, 2024

python virtualenv

Fix mkvirtualenv command not found on Ubuntu

Modified date: November 17, 2023

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How to Install Latest Apache Ant on Ubuntu, Debian and Linux...

Modified date: December 28, 2018

install gns3 ubuntu 18.04 setup wizard 05 min 1

How To Install GNS3 on Ubuntu 22.04|20.04|18.04

Modified date: November 17, 2023

How To Install Virtualbox on Ubuntu and Kali Linux

Modified date: October 13, 2022

install persepolis download manager ubuntu 18.04 add url

Install Persepolis Download Manager on Ubuntu 24.04 / Linux Mint 22

Modified date: March 18, 2026

ralph cmdb dashboard

How To Install Ralph CMDB on Ubuntu 22.04|20.04|18.04

Modified date: August 16, 2023

kanboard ubuntu 18.04 admin dashboard min

How To Install Kanboard on Ubuntu 20.04 with Nginx

Modified date: January 26, 2021

Protect grub with password on Debian or Ubuntu or Kali Linux

Modified date: August 2, 2024

install php 8.4 ubuntu linux

Install PHP 8.4 on Ubuntu 24.04 / 22.04 / 20.04

Modified date: September 6, 2025

Install Ubuntu 22.04 – Step by Step With Screenshots 28

Install Ubuntu 22.04 (Jammy Jellyfish) – Step by Step With Screenshots

Modified date: April 22, 2024

connect to tor network

Install Tor Browser on Ubuntu 24.04 / Linux Mint 22 /...

Modified date: March 18, 2026

Electronics

Honeywell Home RTH9585WF Wi Fi Smart Color Thermostat

7 Feature-rich Smart Thermostats to Elevate your Home

Modified date: November 14, 2023

Doogee S89 Series Powerhouse

Modified date: August 19, 2022

M.2 NVMe and SATA SSD Enclosure

Best Enclosures for M.2 PCIe NVMe and SATA SSDs

Modified date: May 10, 2023

Doogee V20 Pro 02

Doogee V20 Pro, S100 Pro, and T30 Pro Are Making A...

Modified date: June 12, 2023

10 Best Wireless Earbuds to buy 2022

Modified date: January 1, 2022

Bose SoundLink Flex Bluetooth Speaker

Best Portable and Waterproof Speakers in 2024

Modified date: March 6, 2024

CentOS

how to setup saltstack on rocky linux 8 centos 8

Install Saltstack Master/Minion on CentOS 8 | Rocky Linux 8

Modified date: August 30, 2022

faraday login page

Faraday – Penetration Testing IDE & Vulnerability Management Platform

Modified date: August 23, 2023

install rabbitmq rhel 8 centos8 01

How To Install RabbitMQ on RHEL 8 / CentOS 8

Modified date: May 10, 2024

kamailio centos 7

Install Kamailio SIP Proxy Server From Source on CentOS 7

Modified date: March 20, 2026

How To Install Syncthing on Rocky 9 / CentOS 9 /...

Modified date: February 29, 2024

Add Prometheus data source grafana 02

Install Prometheus and Grafana on CentOS 7 / RHEL 7

Modified date: March 16, 2026

install postgresql 11 centos 7

How To Install PostgreSQL 14 CentOS 7 / RHEL 7

Modified date: May 25, 2023

install elasticsearch 8x on ubuntu 2404 2204

Install Elasticsearch 8.x on Ubuntu 24.04/22.04

Modified date: March 18, 2026

install grafana 6 centos7

How To Install Grafana on CentOS 7 / RHEL 7

Modified date: June 6, 2024

install nodejs ubuntu 18.04 debian 9

How To Install Node.js 12,10 on RHEL 8 / CentOS 8

Modified date: August 21, 2023

squid changeproxy

Install Squid Proxy Server on Ubuntu 18.04 / CentOS 7

Modified date: August 19, 2023

install python3 python2 rhel 8

Install Python 3 / Python 2.7 on CentOS 8|RHEL 8

Modified date: August 21, 2023

Debian

Upgrade to Debian 13 Trixie from Debian 12 Bookworm featured

Upgrade to Debian 13 (Trixie) from Debian 12 (Bookworm)

Modified date: March 16, 2026

How To Upgrade from Debian 10 Buster To Debian 11 Bullseye

Upgrade from Debian 10 (Buster) To Debian 11 (Bullseye)

Modified date: February 5, 2024

install vnc server ubuntu 18.04 02

Install and Configure VNC Server on Ubuntu 22.04|20.04|18.04

Modified date: January 25, 2023

install mysql 8.0 fedora 29 fedora 28 min

How To Install MySQL 8.0 on Debian 12/11/10

Modified date: December 14, 2024

install java jdk on centos7 fedora 29

Install Oracle Java 18 (OpenJDK 18) on Ubuntu / Debian

Modified date: September 29, 2023

opensearch dashboard

How To Install OpenSearch on Debian 12/11/10

Modified date: March 8, 2024

Fedora

install rabbitmq fedora dashboard

Backup and Restore RabbitMQ Data & Configurations

Modified date: April 6, 2024

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Install Latest LibreOffice on Fedora 43/42/41/40/39

Modified date: December 20, 2025

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How To Install GNS3 on Fedora 43/42/41/40

Modified date: February 28, 2026

How To Install Fedora 36 – Step by Step With Screenshots

Modified date: May 11, 2023

introducing fedora coreos

How To Run Fedora CoreOS (FCOS) on VMware Workstation

Modified date: May 20, 2025

elasticsearch kibana centos7 min

Install ELK Stack on CentOS 7 / Fedora 39/38/37/36/35

Modified date: November 14, 2023

Stratis Storage Cheat Sheet – reference guide

Modified date: June 6, 2023

mongodb 7 install fedora centos stream

MongoDB 7.0 Installation on CentOS Stream and Fedora

Modified date: July 28, 2025

monaco editor linux

Install Monaco Editor – Browser based Code Editor for Linux

Modified date: September 19, 2023

install kde plasma fedora details

Install KDE Plasma Desktop on Fedora 43/42/41/40

Modified date: December 20, 2025

install lightworks fedora

Install Lightworks Video Editor on Fedora 43/42/41

Modified date: November 21, 2025

How To Install Xfce Desktop on Fedora

How To Install Xfce Desktop on Fedora 41

Modified date: March 16, 2026

Kali Linux

Installing MariaDB 11 or MariaDB 10 on Kali Linux

Modified date: January 17, 2024

install virtualbox 6.0 ubuntu 18.04 16.04 debian 9 02

How To Install VirtualBox 7.0 on Kali Linux / Linux Mint

Modified date: January 17, 2024

mariadb foundation

How To Install MariaDB 10.x on Kali Linux

Modified date: June 26, 2024

Kali Linux Purple What it is and how to install 22

Installing Kali Linux Purple – Steps with screenshots

Modified date: March 16, 2026

java installation

How To Install Java JDK on Kali Linux

Modified date: June 26, 2024

understanding and using burp suite on kali linux 33

Understanding and Using Burp Suite on Kali Linux

Modified date: March 16, 2026

OpenStack

add rhel 8 image to openstack 04

How To Add RHEL 8 qcow2 Image To OpenStack Glance

Modified date: June 17, 2024

openstack Barbican

Install and Configure OpenStack Barbican Key Manager Service

Modified date: February 25, 2024

openstack use floating ip 06

Assign a Floating IP Address to VM Instance in OpenStack

Modified date: February 7, 2024

openstack magnum

Upgrade Kubernetes Cluster on OpenStack Magnum

Modified date: June 8, 2023

install openstack centos 8 01

Install OpenStack on Rocky Linux 8 – Setup Pre-reqs (Step 1)

Modified date: November 25, 2022

run rocky linux 8 openstack 01

Generate Rocky Linux 8 Qcow2 Image for OpenStack / KVM /...

Modified date: March 18, 2026

Kubernetes

Kubernetes Cluster using Portainer Web Dashboard 12

Containers

How To Manage Kubernetes Cluster using Portainer Dashboard

setup local openshift cluster 05

Openshift

Setup Local OpenShift 4.19 Cluster with CodeReady Containers

Run immudb SQL and Key Value Database on DockerKubernetes

Databases

Run immudb SQL and Key-Value Database on Docker / Kubernetes

Specify Metric Conditions

How To

Amazon EKS Autoscaling Based on Cluster Metrics

eks compute options

Kubernetes

Easily Setup EKS Kubernetes Cluster on AWS

jenkins login 1

Dev

How To Add Multiple Kubernetes Clusters to Jenkins

Automation

WildFly on Debian

How To Install WildFly (JBoss) on Debian 11 / Debian 10

Modified date: September 2, 2023

Install Portainer (Docker Web UI) on Linux

Modified date: July 15, 2024

Install and Configure Ansible on Ubuntu / Debian / RHEL /...

Modified date: March 19, 2026

How To Create LXC Containers using Terraform

Modified date: November 6, 2023

Modern Deal Flow Management

The Role of Automation in Modern Deal Flow Management

Modified date: June 3, 2024

Automated RMM Solutions

Streamlining IT Operations With Automated RMM Solutions

Modified date: March 20, 2024

Virtualization

Install VMware vSphere ESXi 8.0 on Bare-Metal Servers

Josphat Mutai - Modified date: December 18, 2022

Install VMware Workstation / Player 16 on Rocky Linux 9

Modified date: August 4, 2022

Understanding and Automating: Azure Backups vs AWS Snapshots

Modified date: March 20, 2026

Configure and Use Dnsmasq DHCP Server in Proxmox VMs

Modified date: July 11, 2024

Install VMWare Workstation 17.x Pro on CentOS 8

Modified date: August 25, 2023

Cloud

How To Setup AWS VPC Network With CloudFormation

Maureen Barasa - Modified date: November 12, 2020

Run MicroShift on RHEL 10 / Fedora for Edge OpenShift

Modified date: March 18, 2026

Mastering Cloud Infrastructure Management: A Guide for Modern Businesses

Modified date: November 6, 2024

Monitor Docker Containers and Kubernetes using Weave Scope

Modified date: August 17, 2023

Install Dynatrace ActiveGate Environment on CentOS | Ubuntu

Modified date: March 17, 2021

Databases

PostgreSQL database

How To Install PostgreSQL 16 on Debian 12/11/10

Modified date: February 19, 2024

install influxdb 04

How To Install InfluxDB v2 on Ubuntu 24.04

Modified date: September 6, 2025

create stack diagram

Setup AWS RDS MySQL DB Instance with CloudFormation

Modified date: July 6, 2021

how to solve mysql secure file priv error

Convert MySQL tables from MyISAM into InnoDB Storage engine

Modified date: November 13, 2023

How To Install PostgreSQL 16 on CentOS 9 / RHEL 9

Modified date: March 16, 2026

How To Install PostgreSQL 17 on Ubuntu 24.04 22.04

How To Install PostgreSQL 17 on Ubuntu 24.04 / 22.04

Modified date: March 16, 2026

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