Lessons in Linux

Building and/or maintaining virtual machines or containers can be very rewarding. You may be designing systems that provide limited accessibility to regular machine resources to avoid tampering. Or you may build the logic to support a heavily used secured environment by cloning a machine or container to keep things running smoothly and minimize access times. Data Center Management and Administration Data center administration can be rewarding and highly visible, and it can be done from the data center or remotely. Monitoring system loads, communications and application execution for a data center involves working with many different groups and being able to diagnose and analyze data from a number of sources. It’s like an air traffic controller for digital flights. It’s fast paced and important work. Application Monitoring and Load Balancing in a Data Center Monitoring and managing virtual machines, containers and applications is a big responsibility and vital to IT today. When application CPU loads get high, a data center operations member can start a new application instance, container or virtual machine to decrease usage. These opportunities create new areas of operations that didn’t exist a few short years ago. Today’s virtual machine managers allow a virtual machine to be relocated, such as to a remote data center, while it’s running. When a virtual machine is operating fully remotely, the local instance can be shut down. Cloud Computing Administration Roles Cloud computing has become a big part of the data center today and beyond. A cloud can be one of many types of remote computing. But all cloud computers are a dedicated system for a person or entity that physically resides within a data center. Each physical machine provides services to many clients – from several hundred to several thousand – within the same hardware. In fact, a cloud may even be a private virtual machine running on a publicly accessible system. Integrating IoT into the Real World One of the highest demand areas today is the need for embedded Linux engineers and IoT setup and configuration engineers. The embedded systems have evolved into the Linux environment, skyrocketing demand almost overnight. Imagine a small Linux server the size of a credit card with a thousand IoT clients that meter water for each house in a city. The setup, configuration and maintenance of this type of server, and the IoT clients it serves, has never existed in traditional IT before. This is just one of thousands of client-server roles that are possible with Linux. And the CompTIA Linux+-certified candidate is just as prepared to set up, manage and troubleshoot this type of environment as they are for the traditional client-server that is used for business processing with human clients. Designing, setting up and administering cloud accounts will never stop, and modifying those accounts to add storage, memory, support tools and applications will never get boring.

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