What System Administrator Do

Install, Configure and Test Softwares
Install, Configure and Test Hardwares
Install, Configure and Test Network equipment
Write scripts and programs for System Management
Troubleshoot Software Problems
Troubleshoot Hardware Problems
Plan System Evolution
Maintain and Understanding of  Changing Technology
Monitor system Use and Provide Dynamic system Management
Protect system Integrity and Monitor Security Issues
Keep Users Happy or At least not too Unhappy
Go to Meetings