Network management, security, and maintenance

This lesson introduces the role of the network administrator, explaining their responsibilities regarding network management, security, and maintenance.

The administrator ensures the proper communication between computers, servers, printers, switches, routers, firewalls, and access points by organizing the local network structure and configuring the equipment. The lesson also outlines key tasks such as managing network addresses, users, and permissions, as well as security, monitoring, troubleshooting, and maintenance.

The final section highlights the importance of segmenting the network into distinct areas—such as those for students, faculty, administrative offices, guests, and servers—to improve security, organization, and traffic control.

Bibliography

Primary sources

Cisco. CCNA Certification.

CompTIA. Network+ Certification Exam Objectives.

Scarfone, K., & Hoffman, P. (2009). Guidelines on Firewalls and Firewall Policy. NIST Special Publication 800-41 Revision 1.

NIST. (2020). Security and Privacy Controls for Information Systems and Organizations. NIST Special Publication 800-53 Revision 5.

Cisco. Internetworking Troubleshooting Handbook — Troubleshooting Overview.

Cisco. Internetworking Troubleshooting Handbook — Troubleshooting Tools.

Secondary sources

Kurose, J. F., & Ross, K. W. Computer Networking: A Top-Down Approach. Pearson.

Tanenbaum, A. S., & Wetherall, D. J. Computer Networks. Pearson.

Comer, D. E. Computer Networks and Internets. Pearson.

Peterson, L. L., & Davie, B. S. Computer Networks: A Systems Approach. Morgan Kaufmann.

Stallings, W. Data and Computer Communications. Pearson.

Odom, W. CCNA 200-301 Official Cert Guide. Cisco Press.

Lammle, T. CompTIA Network+ Study Guide. Sybex / Wiley.

Hucaby, D. CCNP and CCIE Enterprise Core ENCOR 350-401 Official Cert Guide. Cisco Press.

Index

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