1. Personal System Administration CS5493

2. SA SA is a Systems Administrator The SA is responsible for maintaining the overall wellbeing of a computing system.

3. Personal SA Every individual who owns a computer potentially becomes an SA. It is becoming common for a home computing system to consist of more than one computer. Home computing systems can be networked (wired or wireless)

4. Some of the SA Duties: Install software – Applications – Security/Maintenance software Keep the OS up-to-date Keep software up-to-date Data protection – Backups – Implement other security measures

5. SA Duties Finding solutions to problems with the computing system Define how the system is used by controlling access to: – The computing system – Applications – Internet – Data

6. System Configuration: Getting Started Determine how the computing system will be used. Determine who the user are and their needs. Acquire the hardware and software required to meet the usage criteria (for the purpose of our discussion, assume the system is custom built by the SA). Determine how the system will be maintained and secured

7. How to Configure A Secure Computer Install the OS using a secure copy of the OS. Install and activate Security Software Connect to the internet Update Security Software Update the OS with patches, fixes, etc. Install apps Update the apps Scheduling updates

8. Advanced Activities Uninstalling unwanted (unused) applications started by the OS during boot Remove annoying applications Configuring a secure user environment – Separate accounts – Browser – Other apps – Implementing access controls

9. …Beyond Configuration Replacing hardware & software Upgrades to hardware and software Backups

10. Wireless Security To Broadcast or not to … your SSID Trusted MAC addresses Password access and Encryption etc

11. Other Security Issues Power (UPS, surge protection, & power conditioning) HVAC (ventilation & AC) Backup RAID? Physical security

12. The End

13. In-Class Exercise: 21 st Century Home Computer System

14. Spec the System Determine how a computer would be used in a home: – Wireless network – Home entertainment system Music Movies Games – Education – Communication (E-mail, phone, etc)

15. Etc. Determine the users and their needs – Children – Adults