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A lot of network operating systems are based on Linux, or have a Linux shell you can access, or use Linux type commands. The author shows you an example using Cisco, Arista, and Cumulus Linux. Network Automation tools such as Ansible don’t run the command node on Windows. You are probably going to use Linux with tools such as Ansible, Netmkio, NAPALM and other network automation tools. SDN controllers such as OpenDaylight, ONOS, RYU and APIC-EM run on Linux.

Dive in for free with a 10-day trial of the O’Reilly learning platform—then explore all the other resources our members count on to build skills and solve problems every day. This course is for Network Engineers, Network Architects and anyone who wants to learn about Linux from a networking perspective. O’Reilly members get unlimited access to books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers. Get ready with one of these options and in the next post we’ll talk how to access your Linux box remotely and without a password (but securely) with ssh. The script SheBang (#!) begins with the number sign (#) and exclamation mark (!). Almost all of the features of the C shell csh and the Korn shell ksh are incorporated into bash without disabling them.

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It can contain one or more commands or contain imperative programming constructs, such as loops, functions, or conditionals. It is effectively a computer program written in the Bash language, depending on its complexity and usage. 2) Network Automation tools such as Ansible don’t run the command node on Windows. For instance, Docker is able to deliver linux network engineer container network isolation by leveraging network namespaces along with basic Linux interfaces and bridging. Network engineers looking to understand these open source projects should make sure they understand the Linux networking primitives that these tools leverage. Another area of Linux we should focus on is the Linux networking stack.

linux for network engineers

These include multiple SDN courses and HP ASE certification courses (4 day Instructor led training). 6) A new breed of network devices from companies like Facebook, Microsoft and Cumulus Linux use Linux. I hope this blog post provided some useful Linux tricks that will make your life easier. If you have other Linux command line utilities in your toolbox, please feel free to share them in the comment section below.


Another use case is testing whether your firewall is blocking certain traffic. For example, execute netcat in server mode on a host behind your firewall and then execute netcat in client mode from outside the firewall. If you can read on the server whatever you type on the client, then the firewall is not filtering the connection. There are even more reasons, but make sure you don’t get left behind! Learn how to configure Linux networking, how to create users and assign permissions, how to install and run Linux services such as DNS and DHCP. This course is designed specifically to introduce both new and experienced professional network engineers to the Linux operating system and environment.

Learn how to get around, inspect system parameters, and make configuration changes. Once you get comfortable with the basics, start focusing on individual pieces of technology. The brilliant part of Linux is that there’s a multitude of «how to» articles on the internet that can walk you through just about anything you’re looking to do. The key here is to get hands-on experience that you can continue to build on.


A new breed of network devices from companies like Facebook, Microsoft and Cumulus Linux use Linux. There’s been a lot of talk recently about what network engineers should learn to stay relevant. While the field is rapidly changing, I’m going to suggest that one of the most important areas we as network engineers can focus on is Linux. First off, it’s becoming more and more apparent that most network operating systems are based on some variation of Linux. Different vendors offer varying degrees of access to the underlying Linux operating system with the trend being to give the user more and more access into system internals.

  • On the Linux server side, the days of simple host networking are quickly evaporating as more of the network logic moves down into the Linux host.
  • There are many network courses that can address your present job’s priorities and help you gain the needed skills to keep pace with industry changes and new technologies.
  • By using the touch command, you can create a script that is zero bytes in size.
  • You can also use it to open a TCP/IP port and read from standard input.
  • 3) SDN controllers such as OpenDaylight, ONOS, RYU and APIC-EM run on Linux.You will find that many SDN tools require Linux.
  • If you happen to have an old laptop collecting dust, you can install Linux on that and avoid buying any additional hardware.
  • I like to get your feedback on ways I can improve the course and add more content that you think is relevant.