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Guide to Security for Linux Systems

Introduction and Course Overview
Introduction
Preview
Syllabus Overiew
Preview
Download Syllabus
Lab Setup
Creating First Virtual Machine
Download and Install VirtualBox
Linux Installation
Linux CentOS8 Installation
Security Concepts
Securing All Operating Systems
Importance of Linux Security
Preview
Type of Security Breach
Preview
What is Security and OS Hardening?
Preview
Change Password Parameters
Creating User Account and Changing Password
Disable SSH Access for a Specific User
Lock or Disable User Accounts Manually
Lock or Disable User Accounts
Lock User Account After 3 Failed Attempts
Restrict Direct "Root" Login
Set Password Policy
Change File Ownership
Change File Permissions
Linux File Ownership an Permissions
Change SSH Port
Message of the Day
One Service Per Server

Type of Security Breach

Guide to Security for Linux Systems Security Concepts
By: Imran Afzal
4 minutes
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In this lecture we are covering the type of computer or Linux security breach:

  • Data
  • Steal Corrupt
  • Remove Application
  • Apache webserver
  • Database
  • Financial applications
  • Operating System
  • File system corruption
  • System failure
  • Process management
  • Hardware
  • Attack on CPU, Memory, etc.
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