What is tcpdump? tcpdump is a tool that is used for TCP/IP packet analysis. It was first released in 1988 and has since become a very powerful and commonly used...
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Lately, I have seen more customers using DFS Channels to operate their WiFi networks. Dynamic Frequency Selection (DFS) is a WiFi function that enables WLANs to use 5 GHz frequencies that are generally reserved for radars. One main benefit of using DFS channels is to utilize under-serviced frequencies to increase…
In this post we will discuss a step-by-step process for validating WiFi infrastructure for an existing or a newly set-up network. Validating WiFi networks involves many steps and is not isolated strictly to new deployments but also to an existing WiFi network. We’ll cover the physical installation and post service…
From a networking perspective, some of the most basic information to know about a Linux box is the status of its network interfaces. In this blog post, I will describe...
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SCinet and the SuperComputing Conference Between November 11th and 16th, the Kay Bailey Hutchison Convention Center Dallas will be hosting the SC18 – The International Conference for High Performance Computing, Networking and Storage. The event hosts a variety of presentations, workshops, exhibitions, and demonstrations related to the latest technological advancements…
DNS resolution is one of the most basic functionalities on any host. On Linux, there are multiple ways to test if DNS works, and in this post we’ll review how DNS servers are configured and what commands you can use to test them. DNS server configuration Every host needs to…
What’s an IP Conflict? An IP conflict occurs when two or more hosts in the same subnet are configured with the same IP address. When this happens, communications with the...
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WiFi networks were originally built simply with coverage in mind. Access points were installed in rooms where WiFi was “necessary” and other rooms were left untouched. But, as businesses began...
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In this post we are taking a step back from networking on Linux and talking about some basic commands that are necessary to navigate ourselves around it. Although we’ll be...
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On July 6 2018, the Federal Communication Commission (FCC) has issued a set of requirements (Order DA 18-710) concerning network speed and latency measurements. This order primarily impacts Internet Service...
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