Networking All-in-One For Dummies

Description

Your ultimate one-stop networking reference   Designed to replace that groaning shelf-load of dull networking books you’d otherwise have to buy and house, Networking All-in-One For Dummies covers all the basic and not-so-basic information you need to get a network up and running. It also helps you keep it running as it grows more complicated, develops bugs, and encounters all the fun sorts of trouble you expect from a complex system. Ideal both as a starter for newbie administrators and as a handy quick reference for pros, this book is built for speed, allowing you to get past all the basics―like installing and configuring hardware and software, planning your network design, and managing cloud services―so you can get on with what your network is actually intended to do.   In a friendly, jargon-free style, Doug Lowe―an experienced IT Director and prolific tech author―covers the essential, up-to-date information for networking in systems such as Linux and Windows 10 and clues you in on best practices for security, mobile, and more. Each of the nine minibooks demystifies the basics of one key area of network management.    Plan and administrate your network  Implement virtualization  Get your head around networking in the Cloud  Lock down your security protocols   The best thing about this book? You don’t have to read it all at once to get things done; once you’ve solved the specific issue at hand, you can put it down again and get on with your life. And the next time you need it, it’ll have you covered.   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 Why Bother with a Network? Accessing the Internet Sharing files Sharing resources Sharing programs Servers and Clients Dedicated Servers and Peers What Makes a Network Tick? Putting the Pieces Together Networks Big and Small It’s Not a Personal Computer Anymore! The Network Administrator Chapter 2 Network Infrastructure Introducing Infrastructure Understanding Network Protocols and Standards Recognizing Network Topology Bus topology Star topology Expanding stars 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 network 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 What’s Important in a Server Scalability Reliability Availability Service and support Components of a Server Computer Motherboard Processor Memory Hard drives Network interfaces Video Power supply Considering Server Form Factors Tower case Rack mount Blade servers Considering Virtualization Chapter 6 Cloud Computing Introducing Cloud Computing Looking at the Benefits of Cloud Computing Detailing the Drawbacks of Cloud Computing 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 2019 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 Geographic domains The Hosts File Understanding DNS Servers and Zones Zones Primary and secondary servers Root servers Caching Understanding DNS Queries A real-life DNS example 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 Taking a ride through DNS-Land 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 License 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 2019 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 Types of file-based backups Normal 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 Basic configuration options DHCP configuration 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 Enabling WEP 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 2019 Chapter 1 Installing Windows Server 2019 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 2019 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 Directories Do Remembering the Good Ol’ Days of NT Domains PDCs and BDCs Trusts NetBIOS names Active Directory to the Rescue 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 2019 Creating Group Policy Objects Filtering Group Policy Objects Chapter 7 Typing 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 Office 365 Chapter 1 Getting Started with Office 365 Administration Introducing Office 365 Considering Office 365 Plans Understanding Tenants Creating an Office 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 ifcfg 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 named.ca Zone files Restarting BIND Chapter 5 Doing the Samba Dance Understanding Samba Installing Samba Starting and Stopping Samba Editing the smb.conf File Configuring global settings Creating a share Using the Samba Client Chapter 6 Running Apache Installing Apache Starting and Stopping Apache Opening the Firewall for Apache Confirming That Apache Is Running Looking at the httpd.config File Understanding Access Rules Configuring Virtual Hosts Chapter 7 Running Postfix Understanding Email Installing Postfix Modifying main.cf Using SpamAssassin Installing SpamAssassin Customizing SpamAssassin Block listing and friends listing email addresses Using the Mail Console Client Chapter 8 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 touch 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 Chapter 5 Managing Software Deployment Understanding Software Licenses Using a License Server Options for Deploying Network Software Deploying software manually Running Setup from a network share Installing silently Creating an administrative installation image Pushing out software with group policy Keeping Software Up to Date Chapter 6 Managing Mobile Devices The Many Types of Mobile Devices Considering Security for Mobile Devices Managing iOS Devices Understanding the iPhone Understanding the iPad Integrating iOS devices with Exchange Managing Android Devices Looking at the Android OS Perusing Android’s core applications Integrating Android with Exchange 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 Appendixes Appendix A Directory of Useful Websites Certification Hardware Home and Small-Business Networking Linux Magazines Microsoft Network Standards Organizations Reference TCP/IP and the Internet Wireless Networking Smartphones Appendix B Glossary Index EULA