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DevOps Tutorials

DevOps provides a structured approach to learning modern software development and IT operations practices. Whether you're a beginner or an experienced professional, our DevOps tutorials offer a systematic exploration of key concepts and tools. With free labs and practical code examples, you'll develop skills in continuous integration, deployment, and infrastructure management. Our DevOps playground enables real - time experimentation with various tools and workflows.

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Configure Network Services to Start Automatically at Boot

Configure Network Services to Start Automatically at Boot

In this challenge, you will learn how to configure network services to start automatically at system boot.
Red Hat Enterprise Linux
Basic Vulnerability Scanning with Nmap

Basic Vulnerability Scanning with Nmap

In this lab, you will learn the fundamentals of vulnerability scanning using Nmap. You'll install Nmap, perform a port scan on your local machine, and analyze the results to identify potential security weaknesses.
CompTIALinuxNmap
Identifying Malware Indicators on Linux

Identifying Malware Indicators on Linux

In this lab, you will learn fundamental techniques for identifying potential malware indicators on a Linux system. You will use standard command-line utilities to investigate suspicious process activity, detect unexpected file modifications, and analyze system logs for anomalous entries.
CompTIALinux
Password Policies and Detecting Attack in Linux

Password Policies and Detecting Attack in Linux

In this lab, you will enhance Linux security by implementing robust password policies. You'll configure complexity and aging rules, enforce them for new users, and monitor authentication logs to detect suspicious activities like repeated failed login attempts, a sign of brute-force attacks.
CompTIALinux
Configure and Verify IPv6 Addresses in Linux

Configure and Verify IPv6 Addresses in Linux

In this lab, you will learn to configure and verify IPv6 addresses on a Linux system. Using the ip and ping6 commands, you'll discover link-local addresses, assign a static global unicast address, and test network connectivity to ensure your IPv6 setup is functioning correctly.
CompTIALinux
Applying Security Baselines and Compliance Controls

Applying Security Baselines and Compliance Controls

In this lab, you will learn how to establish a basic security baseline for user accounts on a Linux system, verify compliance, and set up auditd for monitoring critical configuration files.
CompTIALinux
Secure Remote Access in Linux with SSH

Secure Remote Access in Linux with SSH

In this lab, you will learn the fundamentals of securing remote access to a Linux system using SSH. You will gain hands-on experience with key-based authentication, securely transferring files with `scp`, and creating SSH tunnels for port forwarding with `ssh -L`.
CompTIALinux
Demonstrating Input Validation and Code Integrity

Demonstrating Input Validation and Code Integrity

In this lab, you will learn the importance of input validation and code integrity by creating a simple script, simulating a command injection attack, implementing sanitization, and verifying the script's integrity with hashing.
CompTIALinux
Link Aggregation (Port Bonding) in Linux

Link Aggregation (Port Bonding) in Linux

In this lab, you will learn to implement Link Aggregation (port bonding) in Linux. This technique combines multiple network interfaces into one logical interface to increase throughput and provide fault tolerance. You will use commands like `ip a` to configure, manage, and verify a bonded connection.
CompTIALinux
Secure Network Monitoring with SNMPv3 in Linux

Secure Network Monitoring with SNMPv3 in Linux

In this lab, you will learn how to implement secure network monitoring on a Linux system using SNMPv3. You will configure the SNMP agent (snmpd) to enforce strong authentication and encryption, create a secure user, and use snmpwalk to perform secure queries against your configured agent.
CompTIALinux
HTTPS with a Self-Signed Certificate on Nginx in Linux

HTTPS with a Self-Signed Certificate on Nginx in Linux

In this lab, you will secure an Nginx web server on Linux by implementing HTTPS with a self-signed certificate. You will install Nginx, use OpenSSL to generate a certificate, configure Nginx for HTTPS, and then test the secure connection using command-line tools like curl and openssl.
CompTIALinux
Ensuring Data Integrity and Authenticity with Cryptography

Ensuring Data Integrity and Authenticity with Cryptography

In this lab, you will learn to use hashing and GnuPG (GPG) to ensure data integrity and authenticity. You will practice creating digital signatures and encrypting files on a Linux system.
CompTIALinux
Configure an IPv4-to-IPv6 6to4 Tunnel in Linux

Configure an IPv4-to-IPv6 6to4 Tunnel in Linux

In this lab, you will learn how to configure an IPv4-to-IPv6 6to4 tunnel in a Linux environment. This hands-on exercise guides you through creating a SIT tunnel interface, assigning a 6to4-formatted IPv6 address, adding a default route, and testing IPv6 connectivity over an existing IPv4 network.
CompTIALinux
GitHub Actions Uploading Build Artifacts

GitHub Actions Uploading Build Artifacts

In this lab, you will learn how to persist workflow data using build artifacts. You will configure a workflow to upload a build directory so it can be downloaded later.
Git
Set Up a Local Authoritative DNS Server on Linux

Set Up a Local Authoritative DNS Server on Linux

In this lab, you will set up a local authoritative DNS server on Linux using `bind9`. You'll install `bind9`, configure global options, define forward and reverse lookup zones, and validate the configuration. Finally, you will test DNS resolution with the `dig` utility.
CompTIALinux
Foundational Security Concepts (CIA Triad) in Linux

Foundational Security Concepts (CIA Triad) in Linux

In this lab, you will gain hands-on experience with the CIA Triad (Confidentiality, Integrity, Availability) in a Linux environment. You'll learn to configure file permissions with `chmod`, verify file integrity using MD5/SHA256 hashes, and simulate service monitoring to ensure availability.
CompTIALinux
Create VLAN Interfaces in Linux using the ip Command

Create VLAN Interfaces in Linux using the ip Command

In this lab, you will learn how to configure Virtual LAN (VLAN) interfaces on a Linux system using the ip command. You will gain hands-on experience with creating logically separate networks on a single physical interface, a fundamental skill for network administration and segmentation.
CompTIALinux
Digital Forensics Evidence Acquisition and Integrity

Digital Forensics Evidence Acquisition and Integrity

In this lab, you will learn the fundamental principles of digital forensics, focusing on evidence acquisition using the `dd` command and ensuring data integrity with cryptographic hashes.
CompTIALinux
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