Source:-devops.com Fifteen years ago IT professionals experienced a drastically different day-to-day on the job. While the main mission has always remained constant—to take charge of all internal infrastructure—the infrastructure itself has moved off-premises over time. The complexity rested in networking for IT professionals. Routers, switches, firewalls and other gear needed to be managed so the network would function. Employee devices also required attention from IT admins, but these devices were typically all Microsoft Windows machines. This allowed IT to standardize