Overview

System & Network Administration Overview

• The course covers a wide range of topics related to system and network administration, including virtualization, containers, booting, process control, file systems, software management, scripting, user management, TCP/IP networking, physical networking, DNS, web hosting, configuration management, security, monitoring, and performance analysis.

• Virtualization and containers are both essential technologies in modern system administration. Virtualization allows for multiple operating systems to run on a single physical machine, while containers provide a lightweight and portable environment for applications.

• The course emphasizes practical skills and knowledge through a blend of quizzes, assignments, labs, a midterm exam, and a final exam.

• Important duties of a system administrator include controlling access, adding hardware, automating tasks, overseeing backups, installing and upgrading software, monitoring systems, troubleshooting problems, and working with vendors.

Distributions And Manual Pages

• Linux distributions are categorized by lineages like Debian and Red Hat, they include installations with a desktop environment and package management tools.

• Key factors to consider when choosing a distribution include: longevity, security updates, community support, and vendor accessibility.

• Accessing the manual pages is vital for understanding commands and functionalities.

  • Use man section title or man title to access specific manual pages
  • Use man -k keyword to search for manual pages containing a specific keyword.
  • Utilize mandb (Ubuntu) or makewhatis (RHEL) to update the keywords database.