Learn Linux administration, networking fundamentals, server hardware, virtualization, cloud platforms, security, backups, monitoring, scripting, troubleshooting, customer support, dоcumentation, automation tools, and strong communication skills for managing hosting infrastructure reliably efficiently.

Become a system administrator in a hosting company by learning Linux administration, networking basics, server management, security practices, troubleshooting, and scripting. Having a good understanding of web servers, databases, backups, and monitoring tools is also crucial.

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In order to become a system administrator in a hosting company, you need knowledge of Linux servers, networking, security, web servers, DNS, backups, virtualization, troubleshooting, and scripting, as well as monitoring and system management skills.