Network Administration & Management

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Structuring and Modularizing the Network with Cisco Enterprise Architecture: Jun 12, 2008; This chapter introduces a modular hierarchical approach to network design, the Cisco Enterprise Architecture.

Telecommunications: In War and Peace: Dec 28, 2001; The world is at war against a network of terrorists. Lillian Goleniewski examines the role of telecommunications in that context and tells why understanding its role and potential is paramount to national, business, and personal survival.

The Delta Method: Identifying Network Change: Nov 15, 2002; This lesson discusses some sources of network change and how to identify them. It also discusses how to objectively weigh the benefits versus the risks of making changes to your networked systems.

The Scope of Network Distributed Computing: May 28, 2004; The scope of Network Distributed Computing (NDC) is quite impressive. This chapter presents an overview of some of the many relevant areas of NDC research and development today. If you're looking for a solid overview of all things NDC — from the Semantic Web, P2P, and Pervasive Computing to Distributed Databases, Filesystems, Media, and Storage — you've come to the right place.

The Wireless Network Evolution: Apr 12, 2002; Wireless networks include local, metropolitan, wide, and global areas. This excerpt explains the evolution of such networks, their basic principles of operation, and their architectures.

Troubleshooting Network Sharing Issues: Part 1: Jun 19, 2009; Eric Geier shows you how to refresh your networking gear and verify that the sharing, firewall, and router settings are correctly configured.

Troubleshooting Network Sharing Issues: Part 2: Jun 26, 2009; Eric Geier shows how to verify sharing and file permissions, access shares manually and how to reinstall networking gear to solve network sharing problems.

Understanding and Backing Up NetInfo: Ensuring the Recovery of Local Mac OS X User and Machine Data: Aug 18, 2006; NetInfo, Apple's legacy directory service, might not be used for storing network user accounts and other resources these days, but it's alive and well as the database that each Mac OS X computer uses to store all the information for local user accounts and system information. Ryan Faas gives you all the details of the way Mac OS X uses these databases and how important it is to manage their backups.

Understanding Networking Components and Devices for the Network+ Exam: Jul 29, 2005; This chapter covers the various networking devices used in modern networks with an eye toward passing the Network+ Exam. Sample questions with detailed answers are included to help you practice.

Using 802.3af (Power Over Ethernet) as a Sysadmin Tool: Apr 2, 2004; By using Power over Ethernet (802.3af) to provide power for devices such as WiFi Access Points, VoIP desktop phones, and webcams, companies can save on A/C wiring costs and UPS provisioning. Daniel P. Dern tells you how you can gain additional sysadmin capabilities, including remote off/on/reboot and power provisioning management.

Using Static IP Addresses on Your Network: Sep 14, 2009; Eric Geier helps you discover ways to convert from dynamic to static addresses on your network.

VPNs and VPN Technologies: Jan 4, 2002; This sample chapter defines virtual private networks (VPNs) and explores fundamental Internet Protocol Security (IPSec) technologies.

What to Do When … Checklists for System Administrators: Nov 16, 2007; This compendium of checklists for sysadmins will help you do anything better.

Workflow-Based Network Management: Jul 30, 2004; Network management specialist Stephen Morris discusses the benefits of modeling network management operations in advance of MIB design. This is a contrarian approach to the way network management is traditionally developed.