Collections     Essentials     CompTIA     CompTIA Linux+ 2014 Powered By LPI: LX0-104

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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 learning path that covers the objectives for the CompTIA Linux+ exams LX0-104.

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Objectives

Perform Security Administration Tasks start the course use commands to audit a system to find files that have the suid or sgig bit set describe how to set or change a user's password and aging information use netstat to discover open ports on a system use nmap to discover open ports on a local or remote system apply limits to user logins, processes, and memory usage identify which users or processes have files opened identify users who have logged in or who are currently logged into the system configure and use sudo to run commands with superuser, or root, access as a normal user SQL Data Management use SQL to query a database and return results using the select statement use the SQL insert, update, and delete statements to modify data in a table apply a join to database tables to return a result set across multiple tables use the SQL order by statement to return a sorted result set use the SQL group by statement to aggregate data in a result set Securing Data with Encryption configure and use the OpenSSH2 client to securely connect and run commands on another system describe how the OpenSSH2 server host keys are used to secure communications perform basic GnuPG configuration, usage, and revocation of keys use SSH Port Tunnels to tunnel non-secure communications over a secured connection Accessibility configure the keyboard accessibility settings configure and understand the usage for the different visual settings and themes used for accessibility describe the basic features and tools used for assistive technologies (ATs) Practice: Security, Data, and Accessibility configure Linux security, data management, and accessibility