A Drink of Technology for the Thirsty Mind
In this article, we will use TCP/IP filtering to prevent a server from allowing certain TCP ports or protocol. 1. Right-click on the My Network Places icon on the desktop, open properties 2. Choose the network connection for which you want to view the settings, right-click to open properties 3. double-click Internet Protocol (TCP/IP) to view network configuration settings. 4. […]
Read moreIn this tutorial, you will learn how to measure the link speed between two hosts using linkspeed.exe from windows 2003 resource kit. Here is the syntax to analyze speed from local server to remove server: Linkspeed /s <serverName> You can also use /DC parameter to test the link speed to the domain controller serving the current system. Linkspeed /dc Figure-1 […]
Read moreThis article looks at how to use Remote Assistance in an environment where your desktop computers have Windows Firewall enabled. Topics covered include using Group Policy to create a Remote Assistance exception for desktop computers, configuring computers to receive offers of Remote Assistance, and tips on using Remote Assistance. Remote Assistance is one of those features that hasn’t quite lived […]
Read moreThe Switch My first step in making the transition to gigabit Ethernet was to shop for a gigabit switch. There are countless Web sites that sell gigabyte switches, but there are a lot of things that you need to consider prior to making a purchase. The first thing that you need to consider is whether the unit that you are […]
Read moreFirewalls have become an indispensable part of computer security, but they can be intimidating for a new administrator. In this article I will explain the inner workings of a firewall and some common firewall features in an easy to understand manner. Network Address Translation Your firewall’s number one job is to separate your private network from the Internet, and use […]
Read moreThere comes a time when a network becomes too big and performance begins to suffer as a result of too much traffic. When that happens, one of the ways that you can solve the problem is by breaking the network into smaller pieces. There are several techniques for splitting a network, but one of the most effective techniques is called […]
Read moreIn this article, I’ll run through the 7 steps you should take to successfully troubleshoot a Windows network. I’ll cover what you need to check on your local PC and related to critical Windows infrastructure like DNS, DNCP, and default gateways. Introduction Whether you have a small Windows network in your house with only one PC or a large Windows […]
Read moreThis article series will examine various techniques for securing Wi-Fi networks. This first article in the series deals with understanding the vulnerabilities associated with wireless networks. Introduction Even though Wi-Fi has been around for many years now, I still periodically receive E-mail messages from people who are wondering about the various security and privacy concerns regarding the use of a […]
Read moreThe Great Default Password Debate Almost every wireless access point and wireless router has a Web interface that an administrator can use to configure the device to work with their network. This interface is typically accessible by opening a Web browser and going to http://192.168.0.1. Believe it or not, it’s this interface that represents a major threat to a wireless network’s security. […]
Read moreIntroduction In my previous article, I discussed the debate over whether or not you should change your wireless access point’s default password. In this article, I want to continue the discussion by talking about some of the other security settings that are typically built into wireless access points. The SSID One of the most common security recommendations regarding wireless networks […]
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