Networking All-in-One For Dummies

Title Page
Copyright Page
Table of Contents
Introduction
	About This Book
	Foolish Assumptions
	Icons Used in This Book
	Beyond the Book
	Where to Go from Here
Book 1 Getting Started with Networking
	Chapter 1 Welcome to Networking
		Defining a Network
		Delving into Network Lingo
		Seeing What You Can Do with a Network
			Accessing the internet
			Sharing files
			Sharing resources
			Sharing programs
		Getting Acquainted with Servers and Clients
		Weighing Your Options: Dedicated Servers versus Peer-to-Peer Networks
		Understanding What Makes a Network Tick
		Putting the Pieces Together
		Considering Network Size
		Recognizing That Your Personal Computer Isn’t Personal When It’s on a Network
		Assigning a Network Administrator
	Chapter 2 Network Infrastructure
		Introducing Infrastructure
		Understanding Network Protocols and Standards
		Recognizing Network Topology
			Bus topology
			Star topology
			Ring topology
			Mesh topology
		Considering Cable
			Twisted-pair cable
			RJ45 connectors
			Patch panels and patch cables
			Repeaters and hubs
			Switches
		Perusing Ports, Interfaces, and MAC Addresses
		Pondering Packets
		Contemplating Collisions
		Dealing with Broadcast Packets
		Examining Wireless Networks
	Chapter 3 Switches, Routers, and VLANs
		Understanding Switches
			Learning
			Forwarding
			Flooding
		Looking Deeper into Switches
			Collision domains
			Bridging
			SFP ports and uplinks
			Broadcast domains
			Managed and unmanaged switches
		Understanding Routers
			Network address translation
			Virtual private networks
		Understanding VLANs
	Chapter 4 Cybersecurity
		But We’re a Small Business — Do We Need Security?
		The Two Pillars of Cybersecurity
			Prevention
			Recovery
		Cybersecurity Frameworks
		The NIST Cybersecurity Framework
	Chapter 5 Servers and Virtualization
		Understanding Network Operating Systems
			Network services
			File-sharing services
			Multitasking
			Directory services
			Security services
		Knowing What’s Important in a Server
			Scalability
			Reliability
			Availability
			Service and support
		Identifying the Components of a Server Computer
			Motherboard
			Processor
			Memory
			Hard drives
			Network interfaces
			Video
			Power supply
		Considering Server Form Factors
			Tower cases
			Rack-mounted servers
			Blade servers
			Tiny servers
		Understanding Virtualization
	Chapter 6 Cloud Computing
		Introducing Cloud Computing
		Looking at the Benefits of Cloud Computing
			Cost
			Scalability
			Reliability
			Accessibility
			Free of hassles
		Detailing the Drawbacks of Cloud Computing
			Entrenched applications
			Internet connection speed
			Internet connection reliability
			Security threats
		Examining Three Basic Kinds of Cloud Services
			Applications
			Platforms
			Infrastructure
		Public Clouds versus Private Clouds
		Introducing Some of the Major Cloud Providers
			Amazon
			Google
			Microsoft
		Getting into the Cloud
Book 2 Understanding Network Protocols
	Chapter 1 Network Protocols and Standards
		Understanding Protocols
		Understanding Standards
		Seeing the Seven Layers of the OSI Reference Model
			The physical layer
			The data link layer
			The network layer
				Logical addressing
				Routing
			The transport layer
			The session layer
			The presentation layer
			The application layer
		Following a Packet through the Layers
		The Ethernet Protocol
			Standard Ethernet
			Fast Ethernet
			Gigabit Ethernet
			Beyond gigabit
		The TCP/IP Protocol Suite
			IP
			TCP
			UDP
		Other Protocols Worth Knowing About
	Chapter 2 TCP/IP and the Internet
		What Is the Internet?
		A Little Internet History
		TCP/IP Standards and RFCs
		The TCP/IP Protocol Framework
			Network interface layer
			Network layer
			Transport layer
			Application layer
	Chapter 3 IP Addresses
		Understanding Binary
			Counting by ones
			Doing the logic thing
			Working with the binary Windows Calculator
		Introducing IP Addresses
			Networks and hosts
			The dotted-decimal dance
		Classifying IP Addresses
			Class A addresses
			Class B addresses
			Class C addresses
		Subnetting
			Subnets
			Subnet masks
			Network prefix notation
			Default subnets
			The great subnet roundup
			IP block parties
			Private and public addresses
		Pondering Ports
		Understanding Network Address Translation
	Chapter 4 Routing
		Considering the Usefulness of Routers
			Connecting to the internet
			Connecting remote locations
			Splitting up large networks
		Understanding Routing Tables
	Chapter 5 DHCP
		Understanding DHCP
			Configuration information provided by DHCP
			DHCP servers
			How DHCP actually works
		Understanding Scopes
			Scopes, subnets, and VLANs
			Feeling excluded?
			Reservations suggested
			How long to lease?
		Working with a DHCP Server
			Installing a Windows Server 2025 DHCP server
			Configuring a new scope
		How to Configure a Windows DHCP Client
			Automatic private IP addressing
			Renewing and releasing leases
	Chapter 6 DNS
		Understanding DNS Names
			Domains and domain names
			Fully qualified domain names
		Top-Level Domains
			Generic domains
			Country code domains
		The Hosts File
		Understanding DNS Servers and Zones
			Zones
			Primary and secondary servers
			Root servers
			Caching
		Understanding DNS Queries
		Zone Files and Resource Records
			SOA records
			NS records
			A records
			CNAME records
			PTR records
			MX records
		Reverse Lookup Zones
		Working with the Windows DNS Server
			Creating a new zone
			Creating a new host record
		How to Configure a Windows DNS Client
	Chapter 7 TCP/IP Tools and Commands
		Using the arp Command
		Using the hostname Command
		Using the ipconfig Command
			Displaying basic IP configuration
			Displaying detailed configuration information
			Renewing an IP lease
			Releasing an IP lease
			Flushing the local DNS cache
		Using the nbtstat Command
		Using the netstat Command
			Displaying connections
			Displaying interface statistics
		Using the nslookup Command
			Looking up an IP address
			Using nslookup subcommands
			Displaying DNS records
			Locating the mail server for an email address
		Using the pathping Command
		Using the ping Command
		Using the route Command
			Displaying the routing table
			Modifying the routing table
		Using the tracert Command
Book 3 Planning a Network
	Chapter 1 Local Area Networks
		Making a Network Plan
		Being Purposeful
		Taking Stock
			What you need to know
			Programs that gather information for you
		Considering Cable
		Surmising Switches
		Planning the Network Topology
		Planning the TCP/IP Implementation
		Drawing Diagrams
		More Questions Your Network Plan Should Address
	Chapter 2 Wide Area Networks
		Connecting to the Internet
			Connecting with cable or DSL
			Connecting with T1 lines
			Connecting with fiber
			Connecting with a cellular network
		Choosing a Router
			Choosing a small office router
			Choosing an enterprise router
			Choosing a cellular router
		Securing Your Connection with a Firewall
		Providing Redundancy for Your Internet Connection
		Securing Connections to Remote Locations and Remote Users
		Connecting Remote Offices with an Ethernet Private Line
	Chapter 3 Server Architecture
		Deciding How Many Servers You Need
		Deciding Which Servers You Need
			Domain controllers
			DHCP servers
			Mail servers
			File servers
			Print servers
			Web servers
			Database servers
			Application servers
			Backup servers
			Deployment servers
			Update servers
			Virtualization management platform
		Connecting Your Servers
	Chapter 4 Virtualization Architecture
		Understanding Virtualization
		Understanding Hypervisors
		Understanding Virtual Disks
		Understanding Network Virtualization
		Considering the Benefits of Virtualization
		Choosing Virtualization Hosts
		Understanding Windows Server 2025 Licensing
	Chapter 5 Storage Architecture
		Planning Disk Capacity
		Considering Disk Drive Types
			Hard disk drives
			Solid state drives
		Considering Drive Interfaces
			SATA
			SAS
		Considering RAID
			RAID 10
			RAID 5
			RAID 6
		Considering Attachment Types
			Direct attached storage
			Storage area networks
			Network-attached storage
	Chapter 6 Backup Architecture
		Backup Basics
		Considering Three Basic Types of Backup
		Where to Back Up Your Data
		Backing Up to Tape
			Looking closer at LTO
			Hardware for tape backup
			A word about tape reliability
			About cleaning the heads
		Backing Up to NAS
		Using a Backup Appliance
		Understanding File-Based Backup
			Full backups
			Copy backups
			Daily backups
			Incremental backups
			Differential backups
		Understanding Image-Based Backups and Virtualization
		Backup Security
	Chapter 7 Hyperconverged Infrastructure
		Considering the Headaches of Traditional IT Architecture
		Defining Hyperconverged Infrastructure
		Discerning Deduplication
		Understanding How Deduplication Works
		Considering Backup
		Digging into HCI Clusters
		Incorporating HCI Into Your Plan
Book 4 Implementing a Network
	Chapter 1 Network Hardware
		Working with Cable
			Cable categories
			What’s with the pairs?
			To shield or not to shield
			When to use plenum cable
			Sometimes solid, sometimes stranded
			Installation guidelines
			Getting the tools that you need
			Pinouts for twisted-pair cables
			Attaching RJ-45 connectors
			Wall jacks and patch panels
			Server rooms and distribution frames
		Installing Switches
	Chapter 2 Wireless Networks
		Installing a Wireless Access Point
		Configuring a Wireless Access Point
		Connecting to a Wireless Network
		Paying Attention to Wireless Network Security
			Understanding wireless security threats
				Intruders
				Freeloaders
				Eavesdroppers
				Spoilers
				Rogue access points
			Securing your wireless network
				Changing the password
				Securing the SSID
				Using WPA and WPA2
				Using MAC address filtering
				Placing your access points outside the firewall
			Troubleshooting a wireless network
				Checking for obvious problems
				Pinpointing the problem
				Changing channels
				Fiddling with the antennas
				Adding another access point
				Help! I forgot my router’s password!
	Chapter 3 Windows Clients
		Configuring Network Connections
		Joining a Domain
	Chapter 4 Mac Networking
		Basic Mac Network Settings
		Joining a Domain
		Connecting to a Share
	Chapter 5 Network Printers
		Configuring Network Printers
			Adding a network printer
			Accessing a network printer using a web interface
	Chapter 6 Virtual Private Networks
		Understanding VPN
		Looking at VPN Security
		Understanding VPN Servers and Clients
Book 5 Implementing Virtualization
	Chapter 1 Hyper-V
		Understanding the Hyper-V Hypervisor
		Understanding Hyper-V Virtual Disks
		Enabling Hyper-V
		Getting Familiar with Hyper-V
		Creating a Virtual Switch
		Creating a Virtual Disk
		Creating a Virtual Machine
		Installing an Operating System
	Chapter 2 VMware
		Looking at vSphere
		Getting Started with VMware Workstation Pro
		Creating a Virtual Machine
		Installing VMware Tools
	Chapter 3 Azure
		Looking at Azure Services
		Creating an Azure Account
		Examining the Azure Portal
		Creating a Windows Virtual Machine
		Managing an Azure Virtual Machine
		Connecting to an Azure Virtual Machine
	Chapter 4 Amazon Web Services
		Looking at What Amazon Web Services Can Do
		Creating an Amazon Web Services Account
		Examining the Amazon Web Services Console
		Creating a Windows Virtual Machine
		Managing an Amazon Web Services Virtual Machine
		Connecting to an Amazon Web Services Virtual Machine
	Chapter 5 Desktop Virtualization
		Introducing Desktop Virtualization
		Considering Two Approaches to Desktop Virtualization
		Looking at VMware’s Horizon View
		Looking at Citrix XenApp
Book 6 Implementing Windows Server 2025
	Chapter 1 Installing Windows Server 2025
		Planning a Windows Server Installation
			Checking system requirements
			Reading the release notes
			Deciding whether to upgrade or install
			Considering your licensing options
			Thinking about multiboot
			Planning your partitions
			Deciding your TCP/IP configuration
			Choosing workgroups or domains
		Before You Install
			Backing up
			Checking the event logs
			Applying updates
			Disconnecting UPS devices
		Running Setup
		Considering Your Next Steps
		Adding Server Roles and Features
	Chapter 2 Configuring Windows Server 2025
		Using the Administrator Account
		Using Remote Desktop Connection
			Enabling remote access
			Connecting remotely
		Using Microsoft Management Console
			Working with MMC
			Taking an overview of the MMC consoles
		Customizing MMC
	Chapter 3 Configuring Active Directory
		What Active Directory Does
		Understanding How Active Directory Is Structured
			Objects
			Domains
			Organizational units
			Trees
			Forests
		Creating a New Domain
		Creating an Organizational Unit
	Chapter 4 Configuring User Accounts
		Understanding Windows User Accounts
			Local accounts versus domain accounts
			User account properties
		Creating a New User
		Setting User Properties
			Changing the user’s contact information
			Setting account options
			Specifying logon hours
			Restricting access to certain computers
			Setting the user’s profile information
		Resetting User Passwords
		Disabling and Enabling User Accounts
		Deleting a User
		Working with Groups
			Group types
			Group scope
			Default groups
			Creating a group
			Adding a member to a group
		Working with User Profiles
			Types of user profiles
			Roaming profiles
		Creating a Logon Script
	Chapter 5 Configuring a File Server
		Understanding Permissions
		Understanding Shares
		Considering Best Practices for Setting Up Shares
		Managing Your File Server
			Using the New Share Wizard
			Sharing a folder without the wizard
			Granting permissions
	Chapter 6 Using Group Policy
		Understanding Group Policy
		Enabling Group Policy Management on Windows Server 2025
		Creating Group Policy Objects
		Filtering Group Policy Objects
	Chapter 7 Comandeering Windows Commands
		Using a Command Window
			Opening and closing a command window
			Editing commands
			Using the Control menu
		Special Command Tricks
			Wildcards
			Chaining commands
			Redirection and piping
			Environment variables
			Batch files
		The EventCreate Command
		Net Commands
			The Net Accounts command
			The Net Computer command
			The Net Config command
			The Net Continue command
			The Net File command
			The Net Group command
			The Net Help command
			The Net Helpmsg command
			The Net Localgroup command
			The Net Pause command
			The Net Session command
			The Net Share command
			The Net Start command
			The Net Statistics command
			The Net Stop command
			The Net Time command
			The Net Use command
			The Net User command
			The Net View command
		The RunAs Command
	Chapter 8 Using PowerShell
		Using PowerShell
		Understanding PowerShell Commands
		Using Cmdlets
		Using Parameters
		Getting Help
		Using Aliases
		Using the Pipeline
		Using Providers
		Using Scripts
Book 7 Administering Microsoft 365
	Chapter 1 Getting Started with Microsoft 365 Administration
		Introducing Microsoft 365
		Considering Microsoft 365 Plans
		Understanding Tenants
		Creating an Microsoft 365 Tenant
		Creating a New User
		Resetting a User’s Password
		Disabling a User
	Chapter 2 Configuring Exchange Online
		Looking at Exchange Online Recipient Types
		Examining the Exchange Admin Center
		Managing Mailboxes
			Creating an email alias
			Delegating a mailbox
			Converting a standard mailbox to a shared mailbox
			Enabling or disabling mailbox apps
			Creating a forwarder
		Creating a Shared Mailbox
	Chapter 3 Administering Teams
		What Is Teams?
		A Brief Look at How Teams Works
			Microsoft 365 Group
			SharePoint
			OneDrive for Business
		Using the Teams Admin Center
		Managing Teams
Book 8 Implementing Linux
	Chapter 1 Installing a Linux Server
		Planning a Linux Server Installation
			Checking system requirements
			Choosing a distribution
			Going virtual
			Deciding on your TCP/IP configuration
		Installing Fedora Server
	Chapter 2 Linux Administration
		On Again, Off Again
			Logging in
			Logging out
			Shutting down
		Wait, Where’s the Desktop?
		Playing the Shell Game
		Getting into Virtual Consoles
		Using a Remote Console
		Enabling the root User
		Using the sudo Command
			Understanding the file system
			Looking at top-level directories
			Browsing the file system
		Using the RPM Package Manager
			Listing packages
			Installing packages
			Removing packages
			Updating packages
		Editing Text Files with Vi
			Starting vi
			Saving changes and quitting Vi
			Understanding Vi’s operating modes
			Moving around in a file
			Inserting text
			Deleting text
			Changing text
			Copying and pasting text
			Repeating commands
			Other useful Vi commands
		Using Cockpit
		Managing User Accounts
	Chapter 3 Basic Linux Network Configuration
		Using Cockpit to Configure Network Interfaces
		Working with Network Configuration Files
			The Network file
			The interface configuration files
			The Hosts file
			The resolv.conf file
		Displaying Your Network Configuration with the ifconfig Command
	Chapter 4 Running DHCP and DNS
		Running a DHCP Server
			Installing DHCP
			Configuring DHCP
			Starting DHCP
		Running a DNS Server
			Installing BIND
			Editing BIND configuration files
			named.conf
			Zone files
			Restarting BIND
	Chapter 5 Linux Commands
		Command Shell Basics
			Getting to a shell
			Editing commands
			Wildcards
			Redirection and piping
			Environment variables
			Shell scripts
			Running a command with root-level privileges
		Directory- and File-Handling Commands
			The pwd command
			The cd command
			The mkdir command
			The rmdir command
			The ls command
			The cp command
			The rm command
			The mv command
			The cat command
		Commands for Working with Packages and Services
			The service command
			The yum and dnf commands
		Commands for Administering Users
			The useradd command
			The usermod command
			The userdel command
			The chage command
			The passwd command
			The newusers command
			The groupadd command
			The groupdel command
			The gpasswd command
		Commands for Managing Ownership and Permissions
			The chown command
			The chgrp command
			The chmod command
		Networking Commands
			The hostname command
			The ifconfig command
			The netstat command
			The ping command
			The route command
			The traceroute command
Book 9 Managing a Network
	Chapter 1 Welcome to Network Administration
		Knowing What Network Administrators Do
		Choosing the Part-Time Administrator
		Establishing Routine Chores
		Managing Network Users
		Patching Up Your Operating System and Software
		Discovering Software Tools for Network Administrators
		Building a Library
		Getting Certified
			CompTIA
			Microsoft
			Cisco
		Gurus Need Gurus, Too
		Helpful Bluffs and Excuses
	Chapter 2 Managing Remotely
		Enabling Remote Desktop Connection
		Connecting Remotely
		Using Keyboard Shortcuts for Remote Desktop
		Configuring Remote Desktop Options
			Setting the Display options
			Setting the Local Resources options
			Setting the Experience options
			Setting the Advanced options
		Using Remote Assistance
		Enabling Remote Assistance
		Inviting Someone to Help You via a Remote Assistance Session
		Responding to a Remote Assistance Invitation
	Chapter 3 Managing Network Assets
		Introducing IT Asset Management
		Why Bother?
		Getting Organized
		What to Track
		Taking Pictures
		Picking a Number
		Making Labels
		Tracking Software
		Using Asset-Tracking Software
		Other Sources of Asset-Tracking Information
	Chapter 4 Solving Network Problems
		When Bad Things Happen to Good Computers
		Fixing Dead Computers
		Ways to Check a Network Connection
		A Bunch of Error Messages Just Flew By!
		Double-Checking Your Network Settings
		Time to Experiment
		Who’s on First?
		Restarting a Client Computer
		Booting in Safe Mode
		Using System Restore
		Restarting Network Services
		Restarting a Network Server
		Looking at Event Logs
		Documenting Your Trials and Tribulations
Book 10 Dealing with Cybersecurity
	Chapter 1 Securing Your Users
		Knowing the Difference between Authentication and Authorization
		Following Password Best Practices
		Securing the Administrator Account
		Understanding Multifactor Authentication
		Securing the Human Firewall
			Establishing cybersecurity policies
			Training
			Phish testing
	Chapter 2 Managing Firewalls and Virus Protection
		Firewalls
		The Many Types of Firewalls
			Packet filtering
			Stateful packet inspection (SPI)
			Circuit-level gateway
			Application gateway
		Firewall Best Practices
		The Built-In Windows Firewall
		Configuring Windows Defender Firewall with Group Policy
		Virus Protection
			What is a virus?
			Antivirus programs
			Safe computing
	Chapter 3 Dealing with Spam
		Defining Spam
		Sampling the Many Flavors of Spam
		Using Antispam Software
		Understanding Spam Filters
		Looking at Three Types of Antispam Software
			On-premises antispam
			Antispam appliances
			Cloud-based antispam services
		Minimizing Spam
	Chapter 4 Managing Disaster Recovery and Business Continuity Planning
		Assessing Different Types of Disasters
			Environmental disasters
			Deliberate disasters
			Disruption of services
			Equipment failure
			Other disasters
		Analyzing the Impact of a Disaster
		Developing a Business Continuity Plan
		Holding a Fire Drill
	Chapter 5 Planning for Cybersecurity Incident Response
		Seeing the Importance of a Cybersecurity Incident Response Plan
		Preparing Your Cybersecurity Incident Response Plan
		Assembling Your Response Team
		Identifying and Reporting a Cybersecurity Incident
		Triaging Reported Incidents
		Containing a Cybersecurity Incident
		Engaging the Eradication Phase
		Restoring Lost Data and Systems
		Considering Communication
			Internal communication
			Methods of communication
			Executive leadership communication
			External communication
		Closing the Incident
			Documentation
			Lessons learned
	Chapter 6 Penetration Testing
		Understanding Ethical Hacking
		Introducing the Red Team
		Seeing How Penetration Testing Works
		Scoping a Penetration Test
		Establishing Boundaries
		Examining Tools for Penetration Testing
			How to set up Kali
			What you’ll find on Kali
			Looking at one of Kali’s tools
		Knowing What to Expect from a Penetration Test
Index
EULA