LFCS Tutorials

In this lab, we will install and perform the initial setup of PostgreSQL on the LabEx VM. The goal is to get PostgreSQL up and running and verify its basic functionality. We will explore default databases and check server status and basic configuration.

Learn to manage Linux users, groups, account locks, ownership, default permissions, sticky directories, and setgid collaboration in a safe practice environment.

Build reliable Bash resource observations and preserve real monitoring history for a prepared Linux work session.

Build reliable Bash resource observations and preserve real monitoring history for a prepared Linux work session.

Create private S3 storage, upload portfolio covers and a project list, retrieve a copy and confirm its bytes match the original.

Edit a small profile file, publish it to your EC2 website with SCP and verify that the actual page displays your new content.

Discover how to set up and manage PostgreSQL databases in Kali Linux, a powerful cybersecurity tool. Learn the essential steps to get started with PostgreSQL for your cybersecurity projects.

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.

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.

In this lab, you will learn to manage IP addressing in Linux. You'll use the `ip` command to inspect interfaces and configure a static IP, set a default gateway, and then use `dhclient` to obtain a dynamic IP. Finally, you will verify the network configuration with `arp` and `traceroute`.

In this lab, you will gain hands-on experience managing SELinux security in RHEL. You will learn to change SELinux enforcement modes, configure Apache with custom SELinux file contexts, adjust SELinux policy for user home directories using booleans, and troubleshoot/resolve SELinux denials for Apache web servers and custom web content.

In this lab, you will learn how to optimize RHEL system performance using `tuned` and manage process priorities with `nice` and `renice`. You will begin by verifying `tuned` installation and listing available profiles, then observe how changing `tuned` profiles impacts system parameters. The lab will guide you through starting and monitoring CPU-intensive processes, followed by adjusting their priorities using `nice` and `renice` to understand their effect on resource allocation. Finally, you will learn how to clean up running processes, ensuring a complete understanding of performance tuning on RHEL.

Enter Kali through the terminal, identify your environment, read command help, and save its actual release information.

In this lab, explore SQL injection vulnerabilities using Kali Linux and sqlmap. Learn to detect injectable URLs, enumerate databases, dump table data, and save results for analysis in a secure LabEx VM environment. Master both manual and automated techniques for web application security testing.

In this lab, you will learn web vulnerability scanning using Nikto on Kali Linux. Explore how to run scans, identify security issues, analyze results, and export reports. Gain hands-on experience with Nikto's command-line interface through structured steps in the LabEx VM, building skills in web security assessments.

Read sample tool output, filter and deduplicate findings, count results, and separate error messages.

Read local HTTP resources, interpret response status and headers, and save headers separately from page content.

Resolve a local training target, scan selected TCP ports, identify services, and save inspectable Nmap findings.