Ubuntu Linux Users, Groups & Permissions: Complete Guide

[rlscorner]

Ubuntu Linux Users, Groups & Permissions: Complete Guide
Published 10/2026
MP4 | Video: h264, 1920x1080 | Audio: AAC, 44.1 KHz, 2 Ch
Language: English | Duration: 2h 14m | Size: 1.06 GB

Master Ubuntu Linux user management, groups, permissions, sudo, and ACLs through hands-on labs and ready-to-use scripts.

What you'll learn
Provision, modify, and manage Ubuntu users and groups using production CLI tools, environment configs, and user account workflows.
Apply POSIX symbolic and octal permissions, SUID, SGID, and Sticky Bits to secure shared directories and system files.
Configure secure privilege escalation via visudo snippets, password aging policies, and granular POSIX Access Control Lists (ACLs).
Audit permission vulnerabilities, troubleshoot access denied errors, and build full identity automation scripts for Ubuntu systems.

Requirements
Basic familiarity with using a terminal command line and access to an Ubuntu Linux environment (Virtual Machine, Cloud Instance, or Dual Boot). No prior sysadmin experience required!

Description
This course contains the use of artificial intelligence.

Stop guessing with chmod 777: learn to control exactly who can read, write, and run everything on your Ubuntu server.

Who this course is for

- Aspiring Linux system administrators and DevOps beginners

- Developers who deploy to Ubuntu servers and keep hitting "Permission denied"

- IT support staff who create and remove user accounts

- Students preparing for Linux certifications (LPIC, CompTIA Linux+, RHCSA-style skills)

- Home-lab users who want a secure multi-user server

What you will learn

- Create, modify, lock, expire, and delete users and groups with useradd, usermod, groupadd, and gpasswd

- Provision many accounts at once with a safe, repeatable Bash script

- Read and set file permissions in symbolic and octal form with chmod, chown, and umask

- Understand why directories need the execute bit and diagnose failures with namei

- Build shared team folders with the setgid bit and protect drop folders with the sticky bit

- Find and audit risky setuid, setgid, and world-writable files

- Write least-privilege sudo rules with visudo and /etc/sudoers.d

- Enforce password aging and password quality with chage and pwquality

- Grant per-user and per-group access with ACLs, default ACLs, and the ACL mask

- Offboard an employee safely without losing their data

Requirements

- A computer that can run an Ubuntu 22.04 or 24.04 virtual machine (VirtualBox, Multipass, or a cloud server)

- Basic comfort opening a terminal; no prior Linux administration needed

Final project You will secure a department file server from scratch. You create users and groups with the provisioning script, build private HR, Finance, and IT folders with correct modes and setgid, give IT read-only audit access with ACLs, and allow IT to restart one service through a scoped sudo rule. You then apply password aging, run the audit commands, and offboard a user. You submit your audit output as proof that the server is locked down.

Who this course is for
Aspiring Linux System Administrators, DevOps Engineers, and Security Analysts who want to master identity, sudo, and permission management on Ubuntu Linux.

Code:

https://rapidgator.net/file/b3d712f3f1128fbf3386e0412d270578/Ubuntu_Linux_Users,_Groups_&_Permissions_Complete_Guide.part2.rar.html
https://rapidgator.net/file/df3385692714d73dcd74bdc46354006a/Ubuntu_Linux_Users,_Groups_&_Permissions_Complete_Guide.part1.rar.html

https://nitroflare.com/view/6D5B1D85D728296/Ubuntu_Linux_Users%2C_Groups_%26amp%3B_Permissions_Complete_Guide.part2.rar
https://nitroflare.com/view/4B936118AAB0274/Ubuntu_Linux_Users%2C_Groups_%26amp%3B_Permissions_Complete_Guide.part1.rar