• Online, Self-Paced

Linux networking can be very complex and being able to use the features and tools effectively is a fundamental requirement for any System Administrator. In this course you will learn how to configure many fairly common or standard Linux network services and be able to configure the built-in firewall to secure the system. This course is one of a series in the Skillsoft learning path that covers the objectives for the Red Hat Enterprise Linux 7 RHCSA exam (EX200).

Learning Objectives

Local Network Services

  • start the course
  • work with network services through SystemD Services
  • configure a basic bind service
  • configure a basic dhcpd service
  • configure a basic ntpd service
  • configure a system to use Precision Time Protocol
  • configure the logging server to store logs sent from external servers
  • configure a basic smbd service
  • use Samba to share a directory with Windows clients

Remote Network Services

  • configure a basic sshd service
  • configure a basic web service
  • configure a basic telnet service
  • configure a basic ftp service

Other Network Services

  • configure a basic squid proxy service
  • configure a basic mail server

Introduction to Firewalls

  • use the Security Level Configuration Tool to manage a basic firewall
  • describe the sections of the firewall and the basics of how the firewall rules are configured
  • add and delete rules to an iptable configured firewall
  • save and restore iptable rulesets
  • configure the system to use a set of firewall rules on boot from the shell

Advanced Firewall Configuration

  • add a rule to allow a network service port through the firewall
  • use the advanced features of the firewall manager
  • add a limit to the firewall for certain types of traffic

Practice: Using Advanced Networking Features

  • start a network service add a rule to the firewall to allow external access to the service

Framework Connections

The materials within this course focus on the NICE Framework Task, Knowledge, and Skill statements identified within the indicated NICE Framework component(s):

Specialty Areas

  • Systems Administration

Specialty Areas have been removed from the NICE Framework. With the recent release of the new NICE Framework data, updates to courses are underway. Until this course can be updated, this historical information is provided to give better context as to how it can help you with your cybersecurity goals.

Feedback

If you would like to provide feedback for this course, please e-mail the NICCS SO at NICCS@hq.dhs.gov.