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Linux Security
Rating: 4.3 out of 5(231 ratings)
25,019 students

Linux Security

Best Practices: A Hackers Perspective
Created byPeter A
Last updated 6/2022
English
English [Auto],

What you'll learn

  • Learn Security Based Practices
  • Compromise a Linux machine
  • Understand common misconfigurations
  • Explain common security mistakes

Course content

1 section • 10 lectures • 43m total length

  • Introduction0:02
  • Why Good Passwords?5:08

    Discover why strong passwords not in common password lists protect Linux systems from automated password-guessing attacks using word lists and tools like Hydra on ssh servers.

  • Is it a Good Password?4:07

    Learn to assess password strength by checking local word lists with grep, avoiding online checks, and using offline lists from correct station dot net to see if your password appears.

  • Why NOT run scripts from the web?11:17

    running random linux scripts from the internet can give attackers remote control through a reverse shell, granting access, files, and even root privileges from a regular user.

  • Why NOT run scripts from the web? (notes)0:01
  • Why Permissions Matter4:14

    Examine how misconfigurations and weak permissions on Linux enable root access, from reading shadow hashes to abusing sudo programs via GTFO bins.

  • Misconfigurations8:54

    Explore how Linux misconfigurations enable privilege escalation, from insecure SSH and shadow file exposure to brute-force password cracking with John the Ripper, using Hydra and Limpet.

  • Misconfigurations notes0:04
  • Why close ports?3:04

    A desktop is not a server, so open ports invite attackers; scan for open ports and close unnecessary services to prevent remote code execution from outdated software.

  • Why update software6:12

    Update software to fix bugs that attackers can abuse to gain root access, as shown with ssh server access, password guessing, and legacy sudo vulnerabilities.

Requirements

  • Linux box installed recommended

Description

There are some basic things that you need to keep in mind as a Linux administrator if you want to keep your system fairly secure. By fairly secure, i mean that there's no malware or malicious users, who can easily get access to your systems.

This course explains Linux Security Best Practices. What makes a good password? What can happen if you run scripts from the internet? Can an attacker can root at your system? In this course I will answer all those questions and give you demos of how the systems may be compromised.

Contrary to popular belief, Linux systems can be hacked, have viruses or malware. This course teaches you how to happens from a hacker perspective. You'll learn some of the ways how hackers can get into your Linux machine and how a hacker does that. This course focuses on Linux systems. It does not cover physical security such as attacks like Rubber Ducky.

This is a beginners course, you don't need any prior knowledge when doing this course except knowing how to use Linux. Regardless of whether you use Linux as a server or on the desktop, this course will increase your Linux Security knowledge.

If you are a Linux Sysadmin, Software Developer, Ethical Hacker or Linux desktop user, this course is for you.


Who this course is for:

  • Linux users
  • Sysadmins
  • Beginner Ethical Hackers

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