Duties of a System Administrator

 

1. Account provisioning
2. Adding and removing hardware // sudo disk -l
3. Performing backup // tar
4. Installing & upgrading software // yum
5. Monitoring the system // top, htop
6. Troubleshooting // sudo tcmp port 80 or udp port 53
7. Maintaining Documents ion
8. Security Vigilance // sudo nmap -sS -o www.google.co.in/24
9. Other Teams

— Administrator of other operating system
— Network administrator
— DBAs
— Application Developers
— Site reliability and NOC engineer
— Security Ops
— Storage administrator
— Data Center Technicians

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1) Regularly Monitoring and capturing system log files.
2) Regularly Monitoring and capturing data of server CPU, memory usage
3) Regularly monitoring Filesytems space.
4) Regularly monitoring capturing network usage.
5) Writing automated scripts to handle routine user and sysadmin tasks.
6) Users Management and Support
7) Taking backup of Important file systems.
8) Maintaining documentation for system parameters and disk layout.
9) updating with new technologies
10) Educating and training users and subordinates if applicable.