Accessing the Command Line

Linux File System Hierarchy

Create Files & Directories

A Quick Message from Your Instructor

Find Your Way In Linux

Copy, Move, Rename & Delete Files

Copy, Move, Rename & Delete Directories

Cat Command

Grep Command 1

Grep Command 2

Get Help with Manual Pages

Get Help with Pinfo

Read Linux Documentation

Use Input & Output redirection

Create & Edit Text Files

Create Hard & Soft Links

Finding Files

Archive, Compress, Unpack & Uncompress Files

Access Remote Systems Using SSH

Configure Key-Based Authentication for SSH

Disallow User Root from Logging In Using SSH

Copying Files Securely Between Systems

Synchronize Files & Folders Securely Between Systems

Configure Key-Based Authentication

Configure Key-Based Authentication 2

Create Local Users & Local Groups

Gain Super Powers

Modify Users, Groups & Password Aging

Configure A System To Use An Existing Authentication Service

Notation Permissions

Symbolic Permissions

Special Permissions

Create and manage Access Control Lists ACLs

Monitor Running Processes with ps Command

Run Processes in the Background

Terminate Running Processes with Kill & Pkill

Monitoring Running System with top

Adjust Process Priority With Renice

Use procsys and sysctl to Modify or Set Kernel runtime parameters

Produce and deliver reports on system utilization(processor,memory,disk,network)

Listing Unit Files with systemctl

Start, Stop & Check The status of a Linux Service

The Truth About System Log

The rsyslog

The SystemD Journal

SystemD Journal Preservation

Boot, Reboot And Shut Down A System Normally

Boot Systems Into Different Targets Manually

Interrupt The Boot Process To Gain Access To A System

Examining the File System

Mounting & Unmounting File System

Create, Mount, Unmount And Use Vfat, ext4 And xfs File Systems

Logical Volume Management (LVM)

Extend Existing Logical Volume

Create SWAP file and SWAP partition

Creating and Mounting a VDO

Configure a system as an iSCSI target

Configure a system as an iSCSI initiator

Mount and Unmount CIFS and NFS Network File Systems

Provide network shares to specific clients

Provide network shares suitable for group collaboration

Use Kerberos to Control Access to NFS network shares (configure Kerberos)

Use Kerberos to Control Access to NFS network shares ( Configure Nfs Server )

Provide Network Shares to Specific Clients-client installation and configuration

Provide Network Shares Suitable for Group Collaboration

Validate Your Network Configuration

Configure Linux Network

Edit Network Configuration Files

Configuring Hostnames & Names Resolution

Configure IPv6 Addresses and Perform Basic IPv6 Troubleshooting

Configure Aggregated Network Links Between 2 RHEL Systems or Interfaces

Configure Firewall Settings Using Firewall-config & Firewall-cmd

Configure Network Address Translation(NAT) - Masquerade

Firewalld - The rich rules

Configure Network Address Translation (NAT) - Port forwarding

Introduction To SElinux

List And Identify SElinux File And Process Context

Restore Default File Contexts

Use Boolean Settings To Modify System SElinux

Diagnose And Address Routine SElinux Policy Violation

Configure SELinux to support the service

Use SELinux port labelling to allow services to use non-standard ports

Install & Update Software with yum

Configure yum repository

Manage RPM Packages

Schedule Tasks Using at and cron

Maintain Accurate Time with ntp

Synchronize time using other NTP peers

Install the packages needed to provide the service

Configure the service to start when the system is booted

Install and Configure Apache

Configure Apache access restrictions on directories

Configure Group Managed Content

Deploy a basic CGI application

Configure an Apache Virtual Host

Configure TLS security

The Apache Configuration File

Configure a Caching-Only Name Server

Configure a system to forward all emails to a central mail server

Install and Configure MariaDB

Create a simple database schema

Backup database

Perform simple SQL queries against a database

Restore a MariaDB database

Introduction to System Performance Tuning

Understanding and Installing the 'tuned' Service

Enabling and Checking the Status of the 'tuned' Service

Monitoring CPU Resource Usage

Adjusting Process Priorities with 'renice'

Install Your Virtualization Environment

Access Virtual Machine Console

Introduction to Containers

Managing Containers on Red Hat

Secure Linux Logging with Syslog and Rsyslog

Managing Linux Logs with journald

Managing and Auditing User Passwords in Linux

Auditing User Passwords with John the Ripper

Auditing File System Access with Auditd in Linux

Securing_SSH_with_Fail2ban

Disk Encryption with LUKS on Linux

Encrypting Files with GPG on Linux

Securing Network Traffic with SSH

Understanding and Using SELinux

Customizing SELinux

Chroot Jails Setting Up a Secure Jail

Introduction to LXC Containers Setting Up and Managing Linux Containers

Verifying Firewall Configurations in Linux

Introduction

Install VirtualBox and create ubuntu virtual machine (Windows)

Install Visual Studio Code on Windows and connect to Ubuntu vm

Install Visual Studio Code on Ubuntu 22 and Rocky 9

Install Visual Studio Code on macOS

Creating Your First Shell Script

Making a Shell Script Executable

Understanding Shebang (#!)

Using Variables

Command Line Arguments

Read User Input

If statements and conditions

Case statements

Using 'echo' and 'printf' for output

Using 'read' for input

Using 'grep', 'awk', and 'sed' for text processing

Functions: Definition and Usage

Local and Global Variables in Functions

Arrays: Definition and Usage

File and Directory Handling Commands

Understanding /dev, /proc, and /sys Filesystems

Working with File Permissions

Script Debugging Techniques

Error Handling

Signals and Traps

The Cronjob & The at Command (Basics)

The Cronjob & The at Command (Advanced)

Automating System Tasks

Writing a Backup Script

Writing a System Monitoring Script

Writing a User Management Script

Shell Scripting Best Practices

Shell Scripting Security Considerations

Course Overview

Introduction To Secure Shell

How to verify if SSH installed or not on Linux?

Install the OpenSSH on Linux CentOS

Install OpenSSH on Linux Ubuntu

Install OpenSSH on Windows

How do I connect to a remote host

How do I connect to a remote host on a different SSH port

How can I login to a specific directory?

How do I execute a command on a remote host using SSH?

How can I copy (file/files) to a remote host using SCP?

How can I copy (file/files) from a remote host using SCP?

How can I Copy entire directory using SCP?

Can I limit the speed (bandwidth) of files transfer using SCP?

What is SFTP and how to connect to SFTP?

SFTP List file and check the working directory

SFTP Uploading Files

SFTP Downloading Files

SFTP Switching and Creating Directories

SFTP Remove Files and Directories

Multiple SSH Sessions with screen (Install Screen)

Multiple SSH Sessions with screen (Start working)

Multiple SSH Sessions with screen Lock and Exit from the screen

Tunneling x11 Through SSH (Linux)

Tunneling x11 Through SSH (Run Linux Applications on Windows)

Remote Desktop with SSH (Install and Configure VNC Server)

Remote Desktop with SSH (Connect to Remote Desktop)

Change The Default Port

Disable Direct Root Access

Allow Access for Certain User(s)

Deny Access from Known IPs

Allow Access from Known IPs

Public Key Authentication

Disable Password Authentication

Introduction to web server

Essentials

Install Apache on CentOS 7.4

Enable Apache to automatically start when system boot

Configure the firewall service

Where is Apache?

Apache directory structure

Configuration file

Create your first page

Setting up the virtual host - name based

Setting up the virtual host - port based

Configuring an alias for a url

Redirects

The error log

The access log

Custom log

Log rotation

Basic Security - Part 1

Basic Security - Part 2

Set up TLS/SSl for free

Basic authentication

Digest authentication

Access Control

.htaccess (Administrator Side)

.htaccess (User Side)

Authentication ( notes )

Install and Configure antivirus

Mitigate dos attacks - mod_evasive

Apache Multi-Processing Modules (MPMs)

Adjusting httpd.conf - Part 1

Adjusting httpd.conf - Part 2

Troubleshoot Apache (Analyz Access Log) - Part 1

Troubleshoot Apache (Analyze Access Log) - Part 2

Use Apachetop to monitor web server traffic

Introducing the Course: A Gateway to Real-World Job Simulation Projects

Elevating Your Career: The Market Value of Linux Expertise

Introduction to Vagrant: Unveiling the Power of Virtual Environments

Effortless Setup: Navigating Vagrant and VirtualBox Installation Across Platform

Navigating Vagrant: Essential Commands for Efficient Workflow

Setting Up and Running Project Labs for Linux Mastery

Presentation (Project 1)

Tasks Overview (Project 1)

Monitoring System Health with Htop (Project 1)

Exploring I/O Metrics and Disk Simulation in Htop (Project 1)

System Performance Analysis with Vmstat (Project 1)

Understanding Storage Performance with iostat (Project 1)

Comprehensive System Reporting with Sar (Project 1)

Creating a Disk Usage Alert Script for Linux Servers (Project 1)

Automating Monthly System Reports with Sar Scripting (Project 1)

Assignment (Project 1)

Conclusion (Project 1)

Presentation (Project 2)

Tasks Intro (Project 2)

Regular Audit of SSH Access Logs (Project 2)

Secure SSH Based on Our Findings (Project 2)

Develop Bash Script to Monitor SSH Failed Logs (Project 2)

Install Pritunl On Ubuntu 22.04 (Project 2)

Pritunl Initial Setup (Project 2)

Create a VPN User Profile (Project 2)

Test VPN (Project 2)

Conclusion (Project 2)

Tasks intro (Project 3)

Issue SSL Certificate (Project 3)

Install and Configure MySQL Database (Project 3)

Create Database, Username and Password (Project 3)

Install and Configure Laravel (Project 3)

Install and Configure Nginx (Project 3)

Conclusion (Project 3)

Presentation (Project 4)

Tasks Overview (Project 4)

Introduction to ClamAV on Rocky Linux 9.0: Installation and Basic Configuration

Advanced ClamAV Usage: Scanning Directories and Handling Infected Files

Automating ClamAV Scans and Slack Notifications with Bash Scripting (Project 4)

Setting Up Real-Time Scanning with ClamAV on Linux Systems (Project 4)

Integrating ClamAV with Slack for Real-Time Malware Alerts (Project 4)

Install vuls on Ubuntu 22.04 (Project 4)

Scan Linux systems with vuls and slack integration (Project 4)

Assignment (Project 4)

Conclusion (Project 4)

Presentation: Network File System (Project 5)

Presentation: Backup Methods In Linux (Project 5)

Tasks Overview (Project 5)

NFS Server Setup: Installation and Configuration Essentials (Project 5)

Implementing LVM for Efficient Storage: Guide to Creation and NFS Sharing

RAID Array Configuration and NFS Integration (Project 5)

Data Storage Assignment (Project 5)

Mastering Local Backup Techniques in Linux: Full, Incremental, and Differential

Efficient Linux Backup Automation: Secure Off-Site Strategies (Project 5)

Conclusion (Project 5)

ChatGPT Fundamentals

How to delete files that are older than x amount of days in Linux?

Give me a cronjob that runs on the 3rd day of each month at 1:45 am

Create a selfsigned certificate by using OpenSSL

Install nginx latest version and laravel 7 then configure nginx as reverse proxy

Configure SSL for Laravel

Steps on how to install MariaDB, create database and username for Laravel

Configure firewalld

Restrict SSH login to a specific IP or host

Configure network to assign a static IP on Ubuntu 22.0

Troubleshoot 'no route to host' error when connecting to remote host using ssh

I'm getting connection timeout in nginx with requests take more than 2 minutes

Troubleshoot 'SSH HOST IDENTIFICATION HAS CHANGED' error

Troubleshoot MariaDB too many connections error

Shell command to get the top ips that are connected to nginx

Shell script to check top processes that consume CPU and send me notification

Shell script to monitor hard disk partitions free space and send notification

Shell script to monitor nginx access log every 6 hours to get 5xx errors

Introduction to the Course

Objectives and learning outcomes

Importance of Python in Linux and DevOps

Overview of tools and technologies to be used

Basic syntax and semantics

Code Structure

Variables, data types, and type casting

Operators and expressions

Lab: Basics

Conditional statements (if, elif, else)

Looping Constructs (for, while)

Lab: Looping Constructs (for, while)

Loop Control Statements (break, continue, pass)

Lab: Loop Control Statements (break, continue, pass)

Lists, Tuples, Sets, and Dictionaries

Lab: Lists, Tuples, Sets, and Dictionaries

List Comprehensions and Generator Expressions

Lab: List Comprehensions and Generator Expressions

Working with Collections and Iterables

Lab: Working with Collections and Iterables

Introduction to Functions in Python

Lab: Converting Celsius to Fahrenheit

Default Arguments and Variable Length Arguments

Lab: Create a Function to Accept Variable Arguments & Calculate Their Average

Introduction to Lambda Functions

Lab: Use Lambda Functions to Filter out Odd Numbers From a List of Integers

Importing built-in Modules

Lab: Using the time Module to Measure Function Execution Time

Creating Custom Modules and Packages

Lab: Creating a Custom Module for File Operations

Understanding Scope and Namespaces

Lab: Experimenting with global and nonlocal in Nested Functions

Reading from and Writing to files

Lab: Python File Operations

Working with Directories Using os and shutil Modules

Lab: Python Directory Management

Parsing Configuration Files (INI, JSON and YAML)

Lab: Parsing Configuration Files

Exception Handling in Python

Lab: Exception Handling in Python

Environment Variables

Lab: Environment Variables

File and Directory Operations

Lab: File and Directory Operations

System Specific Parameters and Functions

Lab: System Specific Parameters and Functions

Lab: Executing Shell Commands

Running External Commands and Capturing Output

Lab: Running External Commands and Capturing Output

Error Handling in Subprocesses

Lab: Error Handling in Subprocesses

Lab: Disk Usage Reporting

Automating User Account Creation

Using The re Module

Searching Matching and Replacing Text

Introduction to sockets Module

Lab: Resolve a Domain Name

Creating TCP UDP Clients and Servers

Lab: Build a Simple TCP echo Server

Lab: Create a UDP Chat Application

Web Requests and APIs

Consuming RESTful APIs

Handling JSON and XML Data

Lab: API Interaction Fetching Weather Data with Python

What is Docker and Why Use It?

Docker vs. Virtual Machines

Docker Terminology and Architecture

Setting Up Your Docker Environment - Windows Installation

Setting Up Your Docker Environment - Ubuntu Installation

Presentation: Docker Basics

Working with Docker Images

Managing Containers

Networking in Docker

Persistent Storage and Volumes

Introduction to Docker Compose and Services

Introduction to Docker Compose: Hands-On

Multi-Container Application: Hands-On

Scalability and Load Balancing: Hands-On

Docker for Development - Overview

Setting Up a Development Environment with Docker: Hands-On

Best Practice for Dockerfile

Debugging Containers

Introduction to Security in Docker

Running Docker Containers as a Non-root User

Scanning Docker Images for Vulnerabilities: Hands-On

Setting Up Network Policies to Control Traffic Between Containers: Hands-On

Introduction to Docker Swarm

Introduction to Kubernetes

CI/CD with Docker and GitHub Actions: Overview

CI/CD with Docker and GitHub Actions: Hands-On

Introduction to Microservices and Docker

Deploying Microservices with Docker: Hands-On

The Importance of Monitoring and Logging

Docker Monitoring & Logging with ELK Stack: Hands-On

Welcome and Course Overview

Introduction to Ansible

Getting Started with Ansible - Installation Guide on Ubuntu 22.04

Ansible Essentials - Installing with Pip in a Virtual Environment

Understanding Ansible- Architecture and Essentials

Understanding Ansible: Inventory Basics

Building Blocks of Ansible: Crafting Your First Inventory File

Anatomy of Ansible: Unravelling Hosts and Groups

Hands-On Ansible: Implementing Hosts and Groups in Practice

YAML Essentials for Ansible Automation- A Beginner s Guide

YAML Essentials for Ansible Automation- Hands-on

Playbook Structure

Create your first playbook

Ansible Essentials: Modules and Commands

Automating with Ansible: A Guide to Essential Modules

Quick Wins with Ansible: Mastering Ad-Hoc Commands

Understanding Variables and Facts in Ansible

Practical Guide to Using Variables in Ansible

Discovering and Using Facts in Ansible

Ansible Task Control: Handlers, Tags, and Error Management

Handlers: Hands-On

Tags: Hand-On

Conditional: Hands-On

Error Handling in Playbooks: Hands-On

Ansible Roles: Your Automation Swiss Army Knife

Ansible & Jinja2: Dynamic Configuration Generation

Automating with Ansible- Building and Deploying Nginx Using Roles

Advanced Configuration Management with Jinja2 Templates in Ansible

Securing Automation: Ansible Vault

Secure Your Automation: Ansible Vault Hands-On

Understanding REST API Automation with Ansible

Implementing REST API automation with Ansible

Managing AWS Resources Using Ansible- Presentation

Automating AWS EC2 management with Ansible - Hands-On

Ansible Debugging Essentials- A Presentation on Troubleshooting Playbooks

Debugging Ansible Playbooks- A Practical Approach to Solving Common Issues

Polishing Playbooks- A Practical Guide to Ansible Lint and Coding Standards

Presentation: Project Overview

Our Project Workflow

Setting Up MySQL with Ansible: Start to Secure

Node.js Backend Deployment via Ansible

Frontend Deployment with Nginx & Ansible

Project Deployment with Ansible

How to Create a proper CV

Creating the Right Cover Letter

Overview of Elastic Stack

Components of Elastic Stack

Use Cases

Provision Virtual Machine labs with Vagrant

Provision Elasticsearch cluster with Kibana using docker-compose

Overview of Elasticsearch

Data Ingestion and Document Indexing

Basic Operations and CRUD Operations

Data Modeling and Mapping

Analyzers, Tokenizers, Filters

Lab 1: Install and Configure Elasticsearch

Lab 2: Elasticsearch Basic Operations

Overview of Beats

Install Beats (Metricbeat)

Metricbeat Configuration: A Slide Overview

Metricbeat Configuration: Lab

Introduction to Kibana

Kibana Configuration (A slide overview)

Install and Access Kibana

Kibana Essentials Visualizing VM Metrics - Part 1

Kibana Essentials Visualizing VM Metrics - Part 2

Create Kibana Dashboard

Discover and Analyze

Starts a 30-day trial

Overview of Security in the Elastic Stack

Enable Elasticsearch Security: (A slide overview)

Enable Elasticsearch Security

Enroll kibana with security enabled

Securing Metricbeat for Elasticsearch Authentication

Role-Based Access Control in Elastic Stack: (A slide overview)

Create a User and Assign the Role

Create a User for Dashboard-Only Access

Introduction to Cluster Monitoring

Cluster Health and Stats in Elasticsearch

Cluster Health Monitoring with _cluster/health endpoint

Monitoring Elasticsearch with Metricbeat

Monitoring Your Elasticsearch Cluster with Monitoring APIs

Introduction to Elastic Stack Observability

Implementing a basic observability setup

Real-Time Infrastructure Monitoring with Elastic Observability

Logs Stream with Elastic Observability (Nginx access log example)

Install and Configure APM Server

APM Python App Example

Welcome to the Project

Project Design and Architecture

Initialize First Elasticsearch Node

Add Additional Master nodes to Elasticsearch cluster

Add Additional Data nodes to Elasticsearch cluster

Configure Master nodes roles to be master only

Install and connect Kibana to project-one Elasticsearch cluster

Install and Configure Logstash

Configure Metricbeat to send its metrics directly to elasticsearch

Configure Metricbeat to send its metrics directly to Logstash

Configure alerts from Kibana - Send alerts to slack

Introduction to DevSecOps

The Shift-Left Approach

DevSecOps in the SDLC

Benefits of Integrating Security Early

Key DevSecOps Principles

The Fundamentals of Version Control Systems

Set Up a Version Control Account - GitHub

Install git on Windows and Ubuntu

Configure git

Practice Initial Commit - Modifications and Adding a New Commit

Mastering git - presentation

Branching Fundamentals

Encountering and Resolving Conflicts

Pull Requests and Reviews

Protect Main Branch

Change repo visibility

CI/CD Foundation

CI/CD Foundation: Hands-On

Add Linting workflow to GitHub Actions

Add Unit Testing Work Flow to GitHub Actions

Building CI/CD Workflows for DevSecOps

Secure Your Code: Integrating Snyk with GitHub Actions for Python Dependency

Fortify Your Python Code Integrating Bandit for Enhanced Security

Prevent Leaks Implementing Secret Detection with GitHub Actions

CI/CD with Docker and GitHub Actions: Overview

CI/CD with Docker and GitHub Actions: Hands-On

Threat Modeling Overview

Introduction to STRIDE Threat Model

Introduction to PASTS Model

Introduction to DREAD Model

Introduction to Attack Trees Model

Introduction to Secure Code

Understanding and Preventing Injection Flaws

Understanding and Preventing Injection Flaws 2

Cross-Site Scripting Avoidance

Introduction to Infrastructure as Code

Introduction to Platform, Infrastructure, and Configuration Management

Security in Infrastructure as Code

Push and Pull-Based Configuration Management Systems

Golden Image Creation with Packer and Ansible

Lab 1: Building Secure Golden Images with Packer and Ansible

Lab 2: Building Secure Golden Images with Packer and Ansible.mp4

Lab 3: Building Secure Golden Images with GitHub Actions

Automating Compliance- Integrating Standards into DevOps Pipelines

Secure Your Infrastructure- Writing InSpec Compliance Rules

Integrating InSpec with Packer for Automated Testing

What is MLOps?

MLOps vs DevOps

Real-World Use Cases

ML Lifecycle Overview

Data Pre-processing

Model Training & Evaluation

Model Serialization Formats

Introduction

Variables and Assignments in Python

Working with Different Data Types

Conditionals and Evaluations

Exception Handling

Introduction to List

Creating and Iterating Lists

Adding Data to Lists in Python

Introduction to Dictionaries

Introduction to Tuples and Sets

Extracting Data From Lists

Extracting Data From Dictionaries

Introduction to Functions

Function Structure and values

Function Arguments

Variable and Keyword Arguments

Introduction to Classes

Using a Constructor in Classes

Adding Methods to Classes

Class Inheritance

Introduction to Modules

Python Modules - Import

Working With Python Scripts

Virtual Environments and Dependencies

Introduction to Pandas

Loading Data into Pandas

Writing Data From Pandas

Exploratory Data Analysis with Pandas

Common DataFrame Operations in Pandas

Manipulating Text in DataFrames

Applying Functions with Pandas

Visualizing Data with Pandas

Introduction to NumPy Arrays

More Numpy Array Operation

Introduction to argparse Build Your First CLI Script

(Project 1) Part 1 - Loading and Inspecting the Titanic Dataset

(Project 1) Part 2 - Loading and Inspecting the Titanic Dataset

(Project 1) Handling Missing and Incorrect Data

Feature Engineering with Functions and Conditions

Exploratory Data Analysis with Pandas

Project Wrap Up and Script Version