For many years, Red Hat distributions managed network configuration via configuration files in /etc/sysconfig/network-scripts called ifcfg-* . However, in the last few years, these files have been deprecated and replaced by Network Manager and its associated command line tool: nmcli

Join us as we explore how nmcli and Network Manager can help you enter the world of network configuration management. It is incredibly powerful and offers far more configuration options than you are used to from network scripts!

And if that wasn't enough, let's briefly talk about interface bonding. Using the network system role, you configure a bonded interface using Ansible-Core, a component of RHEL.

Want to try nmcli for yourself? Try this free hands-on lab!
https://www.redhat.com/en/interactive-labs/networking-basics-admin-101

Commands used:
nmcli, ip, ansible-playbook, grep

Chapters
00:00 Start of the show
00:14 Introduction
00:47 nmcli basics
08:37 Welcome
10:40 nmcli – from dynamic configuration to static configuration
14:21 nmcli – Adding additional IP addresses to an interface
18:06 nmcli – Adding DNS servers to connections
22:15 Why did it go from eth0 to weird names in rhel8? Is there a way to make it eth0 again?
30:05 Network Bonding
32:00 Configure a bond using the network system role and ansible playbook
39:44 Can I still manage Network Manager with files?

Configuring Network Manager using keyfiles blog:
https://www.redhat.com/en/blog/rhel-9-networking-say-goodbye-ifcfg-files-and-hello-keyfiles
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Essential Administration Skills for Red Hat Enterprise Linux: Whether you're new to Linux or RHEL, join our hosts for a hands-on look at the commands and processes, ask questions, and grow your knowledge.

Getting Started with Red Hat Enterprise Linux: https://developers.redhat.com/register
Try it yourself: https://redhat.com/interactive-labs
Join our Discord: https://red.ht/rhel-discord

Nate Lager: https://twitter.com/gangrif
Scott McBrien: https://www.linkedin.com/in/scott-mcbrien-349b356

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