Udemy
    •  
    •  
    •  
    •  
    •  
    •  
    •  
    •  
Subscribe
Turn what you know into an opportunity and reach millions around the world.
Learn More
Your cart is empty.
Keep shopping
Hardening Ubuntu Server
Rating: 4.1 out of 5(63 ratings)
8,162 students

Hardening Ubuntu Server

Secure your Ubuntu Linux Server
Created byPeter A
Last updated 7/2022
English
English

What you'll learn

  • Harden Ubuntu Linux Server
  • Secure User Accounts
  • Configure Firewalls
  • Setting Password Requirements

Course content

1 section • 15 lectures • 1h 1m total length

  • Introduction0:06
  • Installation11:53

    Install Ubuntu Server via VirtualBox or dedicated hardware, create a virtual machine, and enable OpenSSH server during installation to manage remote access.

  • Briged Adapter (Virtualbox)3:33

    Set the ubuntu server to a bridged adapter in VirtualBox to place it on the same network as the host, enable SSH, and connect remotely via the IP address.

  • User Basics11:23

    Secure Ubuntu server user management by using sudo, avoiding root logins, and controlling admin privileges with groups and usermod.

  • User Basics summary0:24
  • Lock Down Users9:04

    Learn to harden Ubuntu server by configuring sudoers with command and user aliases, restrict root access to specific commands, require passwords, and disable root login via /etc/passwd and sshd_config.

  • Lock Down Users summary0:15
  • Lock Home Dir2:48

    Lock home dir demonstrates hardening Ubuntu server by restricting each user's access to their own directory using chmod 0750, ensuring read/write permissions are limited to the owner.

  • Lock Home Dir notes0:13
  • Hack Server (on Good Passes)6:56

    Demonstrate how attackers exploit weak passwords with a Kali Linux attack, scanning an Ubuntu server with nmap. Show brute-forcing SSH with Hydra and the need for strong, unique passwords.

  • Hack Server notes0:16
  • Password Complexity4:02

    Change the root password with sudo passwd, install pam_pwquality, and configure /etc/security/pwquality.conf to enforce minimum length, digits, uppercase, and dictionary checks to harden the server.

  • Password Complexity notes0:05
  • Firewall (UFW)9:42

    Explore host based firewalls on Ubuntu, using ufw to allow or deny ports, such as ssh (22) and http (80), and understand netfilter, iptables, and nmap scans.

  • Firewall (UFW) notes0:41

Requirements

  • No prior knowledge required

Description

This is a beginners course that teaches you how to harden your Ubuntu Linux Server. It is aimed at total beginners and teaches you how to setup Ubuntu Linux Server, how to secure user accounts, how to lock down accounts, how to hack into a server and and how to setup password rules and a firewall.

If you want to run your own Ubuntu Linux Server and want to do so securely, this course is for you. It teaches you the basics of setting up a secure Ubuntu Server. Besides the videos, there are additional notes with all the commands so you can either copy and paste them or retype them easily or look them up when you need to.

Sure, you can find lots of information on blogs but you'd have to go through a lot of random blogs and whose to say that the writer of the blog is giving you recent configuration advice? In this course all of it is nicely packed together. You will learn the basics of setting up a secure ubuntu server.

If you want to run your own (Ubuntu) Servers then this course is for you. Regardless of whether you have no experience, if you are a sysadmin, developer or anything in between. It is a Cyber Security course and not a Hacking course, but it does contain an example of how your server might be hacked.

Who this course is for:

  • Beginner Linux Sysadmins
  • Cyber Security Professionals
  • Devops

Report abuse