Network Elements

• Local Area Network
• Wide Area Network
• Hosts, Workstation and Server
• Peer-to-Peer vs. Client/Server Architecture

Physical Topologies

• Bus Topology
• Star Topology
• Ring Topology
• Mesh Topology
• Backbones and Segments
• Selecting the Right Topology

Physical Media

• Coaxial Cable
• Twisted-Pair Cable
• Fiber-Optic Cable
• Cable Type Summary

Common Network Connectivity Devices

• NIC
• Hub
• Switch
• Bridge
• Routers
• Gateways
• Other devices

Introducing the OSI Model

The OSI Model’s Lower Layers

• The Physical Layer
• The Data Link Layer

The OSI Model’s Middle Layers

• The Network Layer
• The Transport Layer

The OSI Model’s Upper Layers

• The Session Layer
• The Presentation Layer
• The Application Layer
• Upper Layer Devices

Networking Protocols

• TCP/IP
• IPX/SPX
• NetBEUI
• AppleTalk and AppleTalk over IP

Introducing TCP/IP

• A Brief History of TCP/IP
• TCP/IP Design Goals
• TCP/IP and OSI Model

The Transmission Control Protocol

The Internet Layer Protocol

• The Internet Protocol
• Internet Control Message Protocol (ICMP)
• Address Resolution Protocol (ARP) and
• Reverse ARP (RARP)
• Routers and Routing

The Application Protocols

• Simple Network Management Protocol (SNMP)
• File Transfer Protocol (FTP)
• Trivial File Transfer Protocol (TFTP)
• Secure File Transfer Protocol (SFTP)
• Simple Mail Transfer Protocol (SMTP)
• Post Office Protocol (POP)
• Internet Message Access Protocol, Version 4 (IMAP4)
• Line Printer Daemon (LPD)
• Network File System (NFS)
• Telnet
• Secure Shell (SSH)
• Hypertext Transfer Protocol (HTTP)
• Hypertext Transfer Protocol Secure (HTTPS)
• Network Time Protocol (NTP)
• Network News Transfer Protocol (NNTP
)
• Secure Copy Protocol (SCP)
• Lightweight Directory Access Protocol (LDAP)
• Internet Group Management Protocol (IGMP)
• Line Printer Remote (LPR)

Other Upper-Layer Protocol

• User Datagram Protocol (UDP)
• Server Message Block (SMB)
• AppleTalk Filing Protocol (AFP)
• Internet Connection Sharing (ICS)

Overview of Ports and Sockets

Understanding IP Addressing

• Overview of Ethernet Addresses
• Overview of IP Addressing
• Understanding Subnets
• Subnetting a Class C Network
• Classless Inter-Domain Routing (CIDR)
• IP Proxy Servers

Name Resolution Methods

• Internet Domain Organization
• Using HOSTS
• Using DNS
• Using WINS

Configuring TCP/IP on Windows Workstations

• The IP Setting Tab
• The DNS Tab
• The WINS Tab
• The Options Tab
• The Windows Registry
• Zero Configurations (ZeroConf)

Virtual LANs (VLANs)

Using the Address Resolution Protocol (ARP)

• The Windows ARP Table
• Using the arp Utility

Using the netstat Utility

• The –a Switch
• The –e Switch
• The –r Switch
• The –s Switch
• The –n Switch
• The –p Switch

Using nbtstat Utility

• The –a Switch
• The –A Switch
• The –c Switch
• The –n Switch
• The –r Switch
• The –R Switch
• The –S Switch
• The –s Switch

Using the File Transfer Protocol (FTP)

• Starting FTP and Logging In to an FTP Server
• Downloading Files
• Uploading Files

Using the ping Utility

Using winipcfg, ipconfig, and ifconfig

• Using winipcfg Utility
• Using ipconfig Utility
• Using ifconfig Utility

Using the tracert Utility

Using the Telnet Utility

Using the nslookup Utility

Microsoft Windows

• Features
• Client Support
• Interoperability
• Authentications
• File and Print Services
• Application Support
• Security

Novell NetWare

• Features
• Client Support
• Interoperability
• Authentication
• Directory Structure
• File and Print Services
• Application Support
• Security

UNIX/Linux

• Features
• Client Support and Interoperability
• Authentication
• File and Print Services
• Application Support
• Security

Macintosh

• Features
• Client Support
• Interoperability
• Authentication
• File and Print Services
• Application Support
• Security

Before Installing New Hardware or Software

• Standard Operating Procedures
• Environmental Issues
• Error Messages and Log Files
• Current Configurations Baselines
• Other Documentation

Wireless Networking

• Wireless Network Components
• Wireless Network Installation
• Installation Type

Workstation Configuration

• Configuring a Windows 9x Network
• Configuring a Windows 2000 Network Client
• Configuring Windows Clients for NetWare Network Access

Network Installation Tools

• Wire Crimper
• Media Testing Tool
• Punch down Tool

Remote Access Connections Configuration Requirements

• Hardware Requirements
• Software Requirements

Remote Access Connection Methods

• The Public Switched Telephone Network (PSTN)
• Integrated Services Digital Network (ISDN)
• Other Digital Options

Remote Access Protocols

• Serial Line Internet Protocol (SLIP)
• Point-to-Point Protocol (PPP) and PPPoE
• (Point-to-Point Protocol over Ethernet)
• Point-to-Point Tunneling Protocol (PPTP)
• Windows Remote Access Services (RAS)
• Remote Desktop Protocol (RDP)

Accessing Network Resources

• Client Selection
• Installing the Windows 95/98 and NT/2000 Client
• Installing the NetWare Client
• Installing the UNIX Client
• Selecting a Primary Client

Managing User Account and Password Security

• Network Resource-Sharing Security Models
• Managing Accounts
• Managing Passwords

Using Firewalls

• Firewall Technologies
• Comparing Firewall Operating System Platforms

Understanding and Defending against Hackers Attacks

• Hackers Tools: Common Network Attacks
• Intruder Detection: Defense Techniques

DoD Security Standards

• Trusted Computer Systems
• Trusted Network Interpretation
• Certified Operating Systems and Networks

Understanding Encryption

• Uses for Encryption
How Encryption Works Encryption Keys

Security Policies

• Security Audit
• Clean Desk Policy
• Recording Equipment
• Other Common Security Policies
• Breaking Policy
• The Exit Interview

Assessing Fault Tolerance and Disaster Recovery Needs

• Hot Site
• Worm Site
• Cold Site

Power Management

• Surge Protectors
• Battery Backup Systems
• Line Conditioners

Disk System Fault Tolerance

• Disk Mirroring
• Disk Duplexing
• Disk Stripping
• Redundant Array of Inexpensive (or Independent) Disks (RAID)

Backup Considerations

• Backup Media Options
• Backup Utilities
• Backup Types
• Tape Rotation Schedule

Virus Protection

• Types of Viruses
• Updating Antivirus Components
• Scanning for Viruses

Software Revisions

• Is It Necessary?
• Where to Get Patches
• Hoe to Apply Patches

Narrowing Down the Problem

• Did u check the simple Stuff?
• Is Hardware or Software Causing the Problem?
• Is It a Workstation or a Server Problem?
• Which Segment of a Network Are Affected?
• Are there any Cabling Issues?

Troubleshooting Steps

• Step 1: Establish Symptoms
• Step 2: Identify the Affected Area
• Step 3: Establish What Has Changed
• Step 4: Select the Most Portable Cause
• Step 5: Implement a Solution
• Step 6: Test the Result
• Step 7: Recognize the Potential Effect of the Solutions
• Step 8: Document the Solution

The Troubleshooter’s Resources

• Log Files
• Manufacturer’s Troubleshooting Resources
• Hardware Network Troubleshooting Tools
• Software Troubleshooting Tools

Troubleshooting Tips

• Don’t overlook the Small Stuff
• Prioritize Your Problems
• Check the Software Configuration
• Don’t Overlook Physical Conditions
• Don’t Overlook Cable Problems
• Check for Viruses