NetworkManager and IP

Links

🌙 Lab

🗒 Tutorial

Details

In these guides you work with the Oracle Linux CLI utilities, nmcli and ip, to monitor and manage network devices and connections.

The intent is to introduce you to these utilities and practice using their common features to simulate a work environment. Not all of the features are presented. The lab runs in a virtualized environment and therefore limits what can be presented and practiced.

Background

Linux handles network communications through software configuration files and the physical networking devices in your system. Each physical network device has an associated configuration file, named ifcfg-<interface>, located in the /etc/sysconfig/network-scripts directory.

NetworkManager includes a command-line utility, nmcli, which you can use to create, display, edit, delete, activate, and deactivate network connections, as well as control and display network device status.

The ip is another utility for displaying and manipulating network devices, network routing, and tunnels.

Objectives

• View network status information using command line utilities: nmcli and ip.
• Change the system host name
• Change the logging level
• View connection information
• Add, edit and delete a connection profile
• View device status information

What Do You Need?

A client system with Oracle Linux installed with at least three disk devices.