General (Networking) Articles

Cheat Sheet / Updated 03-01-2022

To create and configure a Cisco network, you need to know about routers and switches to develop and manage secure Cisco systems. Become acquainted with Cisco network devices and code listings; and find out how to manage static routing and view routing information.

Cheat Sheet / Updated 02-28-2022

As a network administrator, you know that TCP/IP is the glue that holds the Internet and the Web together. As well as being familiar with security terms and general definitions, you need to pay attention to RFCs (Requests for Comment) published by the Internet Engineering Task Force. You can comment on, learn from, and submit RFCs yourself.

Cheat Sheet / Updated 02-03-2022

PowerShell 5.1 is the version of Windows PowerShell that ships with Windows Server 2022, Windows Server 2019, and Windows Server 2016. It’s available for installation on Windows Server 2008 R2 with Service Pack1, Windows Server 2012, and Windows Server 2012 R2. The last three operating systems must have Windows Management Framework 5.1 installed to support PowerShell 5.1. You can upgrade to PowerShell 7.2 fairly easily (the more recent version from Microsoft), though the examples on this Cheat Sheet were only tested in PowerShell 5.1.

Article / Updated 12-27-2021

When you first create a file share on your network, all users are granted read-only access to the share. If you want to allow users to modify files in the share or allow them to create new files, you need to add permissions. Here’s how to do this using Windows Explorer: Open Windows Explorer by pressing the Windows key and clicking Computer; then browse to the folder whose permissions you want to manage. Right-click the folder you want to manage and then choose Properties from the contextual menu. The Properties dialog box for the folder appears. Click the Sharing tab; then click Advanced Sharing. The Advanced Sharing dialog box appears. Click Permissions. The dialog box shown appears. This dialog box lists all the users and groups to whom you’ve granted permission for the folder. Initially, read permissions are granted to a group called Everyone, which means that anyone can view files in the share but no one can create, modify, or delete files in the share. When you select a user or group from the list, the check boxes at the bottom of the list change to indicate which specific permissions you’ve assigned to each user or group. Click the Add button. The dialog box shown appears. Enter the name of the user or group to whom you want to grant permission and then click OK. If you’re not sure of the name, click the Advanced button. This action brings up a dialog box from which you can search for existing users. When you click OK, you return to the Share Permissions tab, with the new user or group added. Select the appropriate Allow and Deny check boxes to specify which permissions to allow for the user or group. Repeat Steps 5–7 for any other permissions that you want to add. When you’re done, click OK. Here are a few other thoughts to ponder concerning adding permissions: If you want to grant full access to everyone for this folder, don’t bother adding another permission. Instead, select the Everyone group and then select the Allow check box for each permission type. You can remove a permission by selecting the permission and then clicking the Remove button. If you’d rather not fuss with the Share and Storage Management console, you can set the permissions from My Computer. Right-click the shared folder, choose Sharing and Security from the contextual menu, and then click Permissions. Then you can follow the preceding procedure, picking up at Step 5. The permissions assigned in this procedure apply only to the share itself. The underlying folder can also have permissions assigned to it. If that’s the case, whichever of the restrictions is most restrictive always applies. If the share permissions grant a user Full Control permission but the folder permission grants the user only Read permission, for example, the user has only Read permission for the folder.

Article / Updated 12-27-2021

Although an occasional sacrifice to the Office gods may make your networking life a bit easier, a template isn’t a place of worship. Rather, a template is a special type of document file that holds formatting information, boilerplate text, and other customized settings that you can use as the basis for new documents. Three Office programs — Word, Excel, and PowerPoint — enable you to specify a template whenever you create a new document. When you create a new document in Word, Excel, or PowerPoint by choosing File → New, you see a dialog box that lets you choose a template for the new document. Office comes with a set of templates for the most common types of documents. These templates are grouped under the various tabs that appear across the top of the New dialog box. In addition to the templates that come with Office, you can create your own templates in Word, Excel, and PowerPoint. Creating your own templates is especially useful if you want to establish a consistent look for documents prepared by your network users. For example, you can create a Letter template that includes your company’s letterhead or a Proposal template that includes a company logo. Office enables you to store templates in two locations. Where you put them depends on what you want to do with them: The User Templates folder on each user’s local disk drive: If a particular user needs a specialized template, put it here. The Workgroup Templates folder on a shared network drive: If you have templates that you want to make available to all network users on the network server, put them here. This arrangement still allows each user to create templates that aren’t available to other network users. When you use both a User Templates folder and a Workgroup Templates folder, Office combines the templates from both folders and lists them in alphabetical order in the New dialog box. For example, the User Templates folder may contain templates named Blank Document and web Page, and the Workgroup Templates folder may contain a template named Company Letterhead. In this case, three templates appear in the New dialog box, in this order: Blank Document, Company Letterhead, and web Page. To set the location of the User Templates and Workgroup Templates folders, follow these steps in Microsoft Word: In Word, create a new document or open an existing document. It doesn't matter which document you use. This step is required simply because word doesn't let you access the template folder locations unless a document is open. Choose File, and then Options. The Word Options dialog box opens. Click the Advanced tab. The Advanced options appear. Scroll down to the General section and then click the File Locations button. The File Locations dialog box appears. Double-click the Workgroup Templates item. This step opens a dialog box that lets you browse to the location of your template files. Browse to the template files and then click OK. You return to the File Locations dialog box. Click OK to dismiss the File Locations dialog box. You return to the Word Options dialog box. Click OK again. The Word Options dialog box is dismissed. Although the User Templates and Workgroup Templates settings affect Word, Excel, and PowerPoint, you can change these settings only from Word. The Options dialog boxes in Excel and PowerPoint don’t show the User Templates or Workgroup Templates options. When you install Office, the standard templates that come with Office are copied into a folder on the computer’s local disk drive, and the User Templates option is set to this folder. The Workgroup Templates option is left blank. You can set the Workgroup Templates folder to a shared network folder by clicking Network Templates, clicking the Modify button, and specifying a shared network folder that contains your workgroup templates.

Step by Step / Updated 12-27-2021

User accounts are among the basic tools for managing a Windows server. As a network administrator, you’ll spend a large percentage of your time dealing with user accounts To create a new domain user account in Active Directory, follow these steps:

Article / Updated 12-27-2021

One of the most useful tools available to system administrators is a program called Remote Desktop Connection. Remote Desktop Connection lets you connect to a server computer from your own computer's desktop and use it as though you were actually sitting at the server. The program enables you to manage your servers from the comfort of your own office, without having to walk down to the server room. Remote Desktop Connection is especially important if you're using virtual servers. Because virtual servers have no real hardware, including keyboards, mice, or monitors, Remote Desktop Connection is the primary way you interact with them. Before you can use Remote Desktop Connection to access a server, you must enable remote access on the server. You can do that from the System Properties dialog box. Here are the steps: Open the Control Panel. Double-click System. Click the Remote Settings link. Click the Remote Tab. Select the Allow Remote Connections to This Computer radio button. Click OK. All versions of Windows come with a program called the Remote Desktop Client, which you can use to connect to a server remotely. Here are the steps for Windows 7: Click the Start button, type the word Remote, and then click the Remote Desktop Connection icon. Enter the name of the server you want to connect to. Click the Connect button. Log on and use the server.

Cheat Sheet / Updated 12-27-2021

Managing a small computer network is well within your reach, but it's vital to track key information that's unique to your network. Begin by recording your network and Internet connection information in one place, making it easy to find and readily available when you need it. Then, get to know some of the basic networking concepts such as pin connections and IP address ranges — and become familiar with useful websites for networking information.

Article / Updated 12-27-2021

Windows usually detects the presence of a network adapter automatically. When Windows detects a network adapter, Windows automatically creates a network connection and configures it to support basic networking protocols. You may need to change the configuration of a network connection manually, however. The following steps show how to configure your network connection on a Windows 10 system: Click the Start icon (or press the Start button on the keyboard), and then tap or click Settings. Click Network & Internet. The Network and Internet page appears, as show in the figure below. Click Ethernet. Click Change Adapter Options. The Network Connections page appears, as shown in the figure below. Right-click the connection that you want to configure and then choose Properties from the contextual menu that appears. This action opens the Ethernet Properties dialog box. This dialog box has seven tabs that let you configure the adapter: General: This tab shows basic information about the NIC, such as the device type and status. For example, the device shown is an Intel Pro 100 network interface. Advanced: From this tab, you can set a variety of device-specific parameters that affect the operation of the NIC. In most cases, you should leave the options on this tab alone. About: Displays information about the device's patent protection Driver: This tab displays information about the device driver that’s bound to the NIC and lets you update the driver to a newer version, roll back the driver to a previously working version, or uninstall the driver. Details: With this tab, you can inspect various properties of the adapter, such as the date and version of the device driver. To view the setting of a particular property, select the property name from the drop-down list. Events: Lists recent events that have been logged for the device Power Management: Lets you configure power management options for the device When you click OK to dismiss the network adapter’s Properties dialog box, the network connection’s Properties dialog box closes and you're returned to the Network Connections page. Right-click the network adapter and choose Properties again to continue the procedure. To configure TCP/IP settings, click Internet Protocol Version 4 (TCP/IPv4) and then click Properties to display the TCP/IP Properties dialog box. Adjust the settings and then click OK. The TCP/IP Properties dialog box lets you choose among these options: Obtain an IP Address Automatically: Choose this option if your network has a DHCP server that assigns IP addresses automatically. Choosing this option dramatically simplifies administering TCP/IP on your network. Use the Following IP Address: If your computer must have a specific IP address, choose this option and then type the computer’s IP address, subnet mask, and default gateway address. Obtain DNS Server Address Automatically: The DHCP server can also provide the address of the Domain Name System (DNS) server that the computer should use. Choose this option if your network has a DHCP server. Use the Following DNS Server Addresses: Choose this option if a DNS server isn’t available. Then type the IP addresses of the primary and secondary DNS servers.

Article / Updated 12-27-2021

You can turn your humble Windows client computer running Windows 7, 8, or 10 into a server computer so that other computers on your network can use your printer and any folders that you decide you want to share. In effect, your computer functions as both a client and a server at the same time. A couple of examples show how: It’s a client when you send a print job to a network printer or when you access a file stored on another server’s hard drive. It’s a server when someone else sends a print job to your printer or accesses a file stored on your computer’s hard drive. Here are the steps to enable file and printer sharing in Windows 7, 8, and 10: Click the Start button, type Control Panel, and press Enter. This step opens the Control Panel. Click the Network and Internet icon. Double-click the Network and Sharing Center icon and then click Change Advanced Sharing Settings. This step opens the Advanced Sharing Settings page, which lists network settings for each network you’re connected to. For a home computer running Windows 7: Two networks are listed: Home or Work, and Public. In Windows 8 and 10: The Home or Work network is called Private. For a computer connected to a domain network: A third network named Domain is listed. Click the down arrow next to the network you want to enable file and printer sharing for. For a home computer: Click the down arrow next to Home or Work (Windows 7) or Private (Windows 8 and 10). For a computer connected to a domain network: Click the down arrow next to Domain. The figure shows the settings for a Domain network. The settings for a Home or Work network are the same. Do not enable file or printer sharing for the Public network. Enabling file or printer sharing on a public network exposes your computer’s data to other users on the same public network. Select the Turn on File and Printer Sharing option. Click the Save Changes button. This action saves your changes and closes the Advanced Sharing Settings page.