Hands-On Tutorials

In this lab, you will learn the essential skills to explore, identify, and inspect hardware devices within a Linux environment. You will gain hands-on experience with powerful command-line utilities to understand how the operating system interacts with physical components.

In this lab, you will learn to secure an Apache web server on RHEL. You'll configure httpd on a custom port, explore SELinux port management with `semanage`, and use `firewall-cmd` to open the port in the firewall to ensure proper access and security compliance.

Practice essential Linux file management skills in this hands-on challenge. You'll use cp, mv, and rm commands to organize a project structure, move files, and clean up unnecessary directories.

In this lab, you will gain hands-on experience managing Linux file systems on a Red Hat Enterprise Linux (RHEL) system. You will learn to identify file systems and block devices, examine disk usage, and practice manually mounting and unmounting file systems. Furthermore, this lab will guide you through locating files efficiently using commands like `locate` and `find` based on various criteria.

In this challenge, you will learn how to configure the firewall using the firewall-cmd and firewalld commands on a Red Hat Enterprise Linux system.

LabEx provides an Online Codex Playground, a comprehensive AI agent ecosystem by OpenAI designed for agentic coding and end-to-end software engineering tasks.

LabEx provides an Online Claude Code Playground, an agentic AI tool by Anthropic designed to automate software engineering tasks directly within your playground and cloud sandboxes.

LabEx provides an Online OpenClaw Playground, an open-source autonomous AI agent framework designed for local-first execution with multi-channel messaging support.

LabEx provides an Online OpenCode Playground, an agentic AI coding environment designed for a command-line-oriented workflow, allowing you to plan, implement, and refactor code autonomously.

In this lab, you will learn the essential skills for managing user accounts on a Linux system. You will practice the complete lifecycle of user administration, from creating and securing new accounts with `useradd` and `passwd` to modifying and deleting them with `usermod` and `userdel`.

In this lab, you will learn to create and restore a file system backup in Linux using the tar command. You'll gain hands-on experience with system administration tasks by backing up the /home directory, verifying the archive, and restoring it to a temporary location to confirm its integrity.

In this lab, you will learn to manage special permissions and the umask setting in Linux to secure a collaborative workspace. You will control default file permissions, use the sticky bit to protect files in a shared directory, and verify the settings to ensure security and proper collaboration.

In this lab, you will learn the practical application of the chown command to modify directory ownership in Linux. This hands-on exercise guides you through creating a group, changing a directory's group ownership, and verifying the changes, a fundamental skill for Linux system administration.

In this lab, you will learn to configure and manage advanced storage solutions in Linux. You will work with the Logical Volume Manager (LVM) for flexible volume management and mdadm for software-based RAID, gaining hands-on experience in setting up a robust and scalable storage infrastructure.

In this lab, you will learn to redirect input and output in the Linux shell. You will practice controlling data flow from commands by manipulating standard output (stdout), standard error (stderr), and standard input (stdin) using operators like >, >>, 2>, and the tee command.

In this lab, you will learn to manage disk partitions and filesystems in Linux. You'll use fdisk to create a new partition, format it with ext4, mount it, configure persistent mounting in /etc/fstab, and create a swap partition, all on a safe secondary virtual disk.

In this lab, you will learn to manage file and directory permissions in Linux. You'll practice using the `chown` command to change file ownership and the `chmod` command to modify read, write, and execute permissions for users and groups, securing files and controlling access on a Linux system.

In this lab, you will learn how to use the iptables command-line utility to block incoming ICMP traffic on a Linux system. You will create a firewall rule to drop ICMP packets, commonly used by the ping command, and verify that the block is successfully in place to secure your network.