CompTIA Linux+ 2014 Powered By LPI: LX0-104 Security, Data, and Accessibility

This course is included in our On-demand training solution.


Security, data management, and accessibility are huge fields; however, a system administrator should know enough to understand the roles and features available when configuring a Linux system. This course describes some basic best practices and functionality available to secure a server or provide accessibility for users. In this course, you will learn how to perform basic security administration tasks; learn how to write Structured Query Langauge, or SQL, statements; learn how to secure data using encryption; and learn about the Assistive Technologies available to help with Accessibility requirements. This course is one of a series in the Skillsoft learning path that covers the objectives for the CompTIA Linux+ exams LX0-104.

Target Audience

System administrators that need to support advanced security, data management, and accessibility on a Linux system



Expected Duration

90 min.

Course Objectives

Course Introduction

Auditing a System to Find suid/sgid Files

  • use commands to audit a system to find files that have the suid or sgig bit set
  • Setting or Changing Passwords and Aging Information

  • describe how to set or change a user’s password and aging information
  • Discovering Open Ports on a System Using netstat

  • use netstat to discover open ports on a system
  • Discovering Open Ports on a System Using nmap

  • use nmap to discover open ports on a local or remote system
  • Setting Limits on User Logins, Processes, and Resources

  • apply limits to user logins, processes, and memory usage
  • Determining Which Users or Processes Have Opened Files

  • identify which users or processes have files opened
  • Finding Users Who Have Logged in or Are Online Now

  • identify users who have logged in or who are currently logged into the system
  • Configuring and Using Sudo

  • configure and use sudo to run commands with superuser, or root, access as a normal user
  • Introducing SQL and the select Statement

  • use SQL to query a database and return results using the select statement
  • Inserting, Updating, and Deleting Data with SQL

  • use the SQL insert, update, and delete statements to modify data in a table
  • Selecting Data by Joining Two or More Tables

  • apply a join to database tables to return a result set across multiple tables
  • Sorting Data Returned from a select Statement

  • use the SQL order by statement to return a sorted result set
  • Advanced Grouping of SQL Select Results

  • use the SQL group by statement to aggregate data in a result set
  • Performing Basic OpenSSH2 Configuration and Usage

  • configure and use the OpenSSH2 client to securely connect and run commands on another system
  • OpenSSH2 Server Host Keys

  • describe how the OpenSSH2 server host keys are used to secure communications
  • Configuring and Using the GnuPG

  • perform basic GnuPG configuration, usage, and revocation of keys
  • Using SSH Port Tunnels

  • use SSH Port Tunnels to tunnel non-secure communications over a secured connection
  • Configuring Keyboard Accessibility Settings

  • configure the keyboard accessibility settings
  • Configuring and Using Visual Settings and Themes

  • configure and understand the usage for the different visual settings and themes used for accessibility
  • Configuring Basic Assistive Technologies

  • describe the basic features and tools used for assistive technologies (ATs)
  • Exercise: Managing Security, Data, and Accessibility