Note: This course uses GNS3 for all demonstrations.
- Linux commands
- Linux networks
- Linux prompt basics
- Linux file systems
- Editing, copying, moving, and deleting files
- Changing file owners and permissions
- Updating users, groups, and passwords
- Managing processes from the command line
Skill Level Intermediate
(soothing music) - I want to welcome you to this Linux for network engineers course. This course is not like other Linux courses. In my experience, I find that most Linux courses, try and make network engineers Linux system administrators.
That's not what I'm gonna to do in this course. I'm gonna to teach you how to build networks using Linux. This course will then approach the subject of Linux from a networker's point of view, not from a programmer's point of view or from a Linux system administrator's point of view. The paradigm that we're using is Linux for network engineers, not Linux for developers, or Linux for system administrators.
This course assumes that you have little or no Linux knowledge. But I'm going to take you from the basics of Linux to more complex topics. We're going to build on your knowledge of networking and build Linux networks, running in Junos 3. In this course, we'll use multiple Junos 3 topologies, and concentrate on using the Linux CLI in the same way as you would concentrate on learning the Cisco CLI in a Cisco course, or the Juniper CLI in a Juniper course.
Don't be afraid of the Linux shell or the Linux CLI. It's just another command line interface that you can learn. In the same way that you've learnt that certain commands, when run in a Cisco CLI or another vendor's CLI, give you a specific result, the Linux shell, or Linux CLI, accepts certain commands, which then results in certain output or certain changes on a Linux system.
Just think of this as taking your networking knowledge, and applying it to a different operating system. In this course we'll use Docker, Linux containers, QEMU, GNS3, virtual machines and traditional virtual machines. We'll configure both a Linux desktop, a virtual machine, as well as a Linux server. And you'll configure multiple services on the Linux server, including a DHCP, and a DNS, amongst others.
Other courses spend a lot of time on the history and theory of Linux. Now I believe in practical learning. When you learned to ride a bicycle, you most likely didn't read a book. You didn't spend hours studying aerodynamics and the theory of how bicycles work. You most likely just got on a bicycle and tried to ride. I'm gonna get you as quickly as possible to configure GNS3 networks using Linux.
We're not just going to learn some arbitrary commands. We are going to learn Linux commands while building networks. You learned to ride a bicycle by falling off. You learned to run by falling over. Just get started using Linux CLI and the Linux shell, and as you become more and more comfortable, you can grow into doing more and more complex things with the Linux CLI.
A CCIE didn't become a CCIE automatically. At some point in their lives, they didn't know what an IP address was, and they had to learn that. In the same way, you have to start somewhere, and build on your knowledge, and one day, if you're not already, you can become a CCIE, you can become an advanced Linux user. But you've got to start somewhere. And in this course I'm going to show you how quickly and how easily, you can get started with Linux.
Junos 3 makes this process very easy, and you can be using Linux very quickly. Junos 3 allows you to build multiple networks on your laptop. So all you physically need is your laptop, and you can build multiple networks and test Linux scenarios on your laptop wherever you may be. You could be in front of the television. You could be on a train. You could be in a hotel room. Take this course and take a GNS3 with you and learn wherever you are.
It's also a safe place to be. GNS3 is not your live network. So you won't inadvertently break a production network. So use GNS3 and don't be scared to try things or break things. GNS3 really aids in learning new technologies, such as Linux. ♪ I keep asking why, why, why ♪ ♪ It's been on my mind, mind, mind ♪ ♪ It's been like a year since we're together ♪ ♪ I should be able to feel a whole lot better ♪ ♪ I keep asking why, why, why ♪ (music fades) Why should you learn Linux? Well look at the next video for an example of why you as a network engineer need to learn Linux.
Network operating system from vendors such as Cisco, Arista, and others are based on Linux and in some cases allow you to drop down to a Linux shell and use Linux commands directly on networking equipment. The world is changing. Open source is becoming more and more important. Linux is becoming more and more important. You need to learn Linux and this course can help you do that.