Unix/Linux HANDBOOK

unix/linux handbook notes

The handbook focuses on the administration of enterprise servers and networks

What is system administration?

the process of managing and maintaining the hardware, software, and networks that make up an organization's IT infrastructure.

What are the duties of an administrator?

• Installing and configuring OS systems (e.g., Windows, Linux, macOS)

• Managing User Accounts (creating, modifying, deleting users and permissions)

• Monitoring system performance and availability

• Applying software updates and security patches

• Managing backups and recovery

• Troubleshooting system and network issues

• Ensuring cybersecurity and access control

• Automating tasks with scripts (e.g., Bash, PowerShell)

What are the environments system admins manage?

• Servers (file servers, web servers, email servers)

• Networks (routers, firewalls, switches)

• Cloud services (AWS, Azure, Google Cloud)

• Databases and virtual machines