Linux is a tried-and-true, open-source operating system released in 1991 for computers, but its use has expanded to underpin systems for cars, phones, web servers and, more recently, networking gear.
Its longevity, maturity and security make it one of the most trusted OSes available today, meaning it is ideal for commercial network devices as well as enterprises that want to use it and its peripherals to customize their own network and data center infrastructure.
[ Also see Invaluable tips and tricks for troubleshooting Linux. ]
That in turn makes Linux skills highly sought after by IT hiring managers. For example, many of the new technologies associated with DevOps, such as containers, infrastructure, and SDN controllers, are built on Linux.
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