Course Description
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