If you’re troubleshooting a network problem on a workstation, one of the first things you’ll need to know is the IP address information of the local device. In this video, you’ll learn how to use ipconfig and ifconfig to obtain details about the local TCP/IP stack.
CompTIA Network+ N10-005: 4.3 – Ipconfig and Ifconfig Read More »
If your DNS isn’t resolving IP addresses properly, then much of your network communication may come to a halt. In this video, you’ll learn how to use nslookup and dig to query and evaluate DNS servers.
CompTIA Network+ N10-005: 4.3 – Nslookup and Dig Read More »
Traceroute is an easy way to track the path your packets take through the network. In this video, you’ll learn how to use traceroute and interpret the results of this powerful utility.
One of the most common network command line utilities is ping. In this video, you’ll learn how to use and understand the results from the ping utility.
How fast is your network? In this video, you’ll learn how you can use throughput testers to validate the speed of your network.
CompTIA Network+ N10-005: 4.3 – Throughput Testers Read More »
A protocol analyzer is one of the most valuable troubleshooting utilities in your networking toolbag. In this video, you’ll learn the basics of using protocol analyzers, including capturing and displaying the packets traversing your network.
CompTIA Network+ N10-005: 4.3 – Using Protocol Analyzers Read More »
This month: Interview tips, hyper-threading technology and your CPU, backing up your BIOS, and using S.M.A.R.T. to predict hard drive crashes.
Professor Messer’s CompTIA A+ Study Group – May 2012 Read More »
This month: Advanced cable testing, calculating a CIDR block, troubleshooting routing problems, and an overview of fiber optic connectors.
Professor Messer’s CompTIA Network+ Study Group – May 2012 Read More »
There are some important technical and non-technical reasons for filtering the content that traverses your organization’s network. In this video, you’ll learn about content filtering and how you can use them to protect your email users and corporate browsers.
If you travel outside of your corporate LAN, then you’re probably using a VPN concentrator to protect your remote communications. In this video, you’ll learn about VPN technology and how organizations use VPN concentrators to secure their remote users.
CompTIA Network+ N10-005: 4.1 – VPN Concentrators Read More »
