Network Administration

Transcription

1 Network Administration

2 hat is a Network Administrator? Person responsible for: Network changes (MACs) Layers 1-6 of OSI Model (usually not responsible for applications) Network monitoring IDS (depends on company size) Firewall (depends on company size) Router, switch configurations Network architecture, design and troubleshooting

3 hat is a Systems Administrator? Person responsible for: Setting up servers Configuring the environment for web and other servers Managing database integration (depending on size of the company) Setting up Implementing security (also depending on company size) Data Backup Software updates Hardware and software design and troubleshooting The Systems Administrator is more focused on servers, server hardware, and software.

4 What is Network Administration?? Network administration can be defined as: branch of engineering that concerns the operational management of humancomputer systems [Burgess Ch 1] A network administrator has different roles [Stallings page 3] Controlling corporate strategic assets Controlling complexity Improving service Balancing various needs Reducing downtime Controlling costs

5 Tasks of a Network Administrator Security Management Performance Management Planning for Growth Fault Management and Recovery Account/User Management Networked Application Support

6 Security Management Firewalls Usernames Password control Resource Access Control

7 Performance Management Availability Response Time Accuracy

8 Planning for Growth A Network (or any organisation) is not static Growth means increased load on a network. This must be planned for. Systems eventually need replacement. This must be planned for in advance

9 ault Management and Recovery Monitoring Reporting status Testing Fixes and Patches Updates Repairs Change Management

10 Account / User Management Communication Facilities Connection - Rental - Charges Hardware Usage Lease - Rent - Hire Consumables Usage Power, Paper, Media (Diskettes, CDs ) Software Usage Licensing, Tolls, Application usage

11 Account / User Management Accounts are Managed for: Intrusion detection / prevention Charging for Services Legal protection of the Organisation

12 Networked Application Support Client / Server systems support Internet support Server support Applications and Hardware Helpdesk Trouble report / Bug fixes Printing

13 ther Roles & Needed Skillsets System Administration One or more of several network operating system (NOS) platforms, including Unix, Windows, Novell Often SA s have certificates (often MCSE) or Unix certifications Experience! The more you see, the more rapidly you can troubleshoot. A degree is helpful, especially if you want to move into management Good communication skills work with end users

14 ther Roles & Needed Skillsets Network Administration Cisco Certification (CCNE Cisco Certified Network Engineer) Security Certs Network Architecture & Design Experience More analytical skill, less work with end users

15 ther Roles & Needed Skillsets Security Administration Ensure that the organization's systems are secure and very difficult to hack. As laws change protecting consumers, companies must communicate security breaches. Becoming a very big deal! May keep watch over employees for inappropriate network usage. Dealing with viruses that threaten core equipment. In-depth firewall knowledge is required, as well as a solid understanding of system hacking. In case a security breach could not be averted, it is the security administrator s responsibility to close the systems, determine damages, trace the culprit and ensure that it doesn t happen again.

16 Salaries Careers to be Considered.. Senior Network Administrator Average salary of $70,000 to $88,000 Network Security Manager Average Salary of $62,000 to $103,000 IT Manager Average Salary of $88,000 to $116,000 Network Planning Manager Average Salary of $97,000 to $112,000 Senior Systems Administrator Average Salary of $73,000 to $94,000

17 How to be a Sys/Net Admin (yet another Job Description ) Learn Operating System basics eg Unix Learn shell utilities and script programming Learn how to Install and Configure OS Learn DNS and Bind Learn TCP/IP networking Learn NFS and NIS (or equivalent ) Learn about system tuning and accounting Learn Compile and Link (eg C and make)

18 Future Hot IT Fields Biotechnical (TechRepublic, 2004) Security (TechRepublic, 2004) Internet Marketing (CareerPlanner, 2004) Internet Security