Tony Fortunato
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Tony Fortunato
Iperf3 vs. Iperf3: Just Start Measuring
Tony Fortunato of The Technology Firm walks you through testing scenarios using iPerf3 on different devices.How Does Packet Loss and Delay Affect Performance?
Tony Fortunato of The Technology Firm walks you through the process of evaluating the impact of packet loss and delay on a network's or app's performance.CDP Discovery Using Microsoft’s PKTMON
In this video, I review how to use Microsoft pktmon commands to figure out what port I am connected to without using Wireshark.Figuring Out Link Speed Using the Windows Command Prompt
Using the command line allows you to write a script or batch file to standardize troubleshooting so a user or technician can run it.Troubleshooting 101 – What About the Ports?
Tony Fortunato of The Technology Firm walks you through a typical network performance troubleshooting workflow.Get to Know Your Tools: Nmap Ping Subnet Scan
Tony Fortunato of The Technology Firm uses Wireshark to observe how nmap discovers a subnet.Baselining and DHCP (Sort of)
As part of my baselining series, I am covering the various topics or protocols to look for. In this example I have a PC bootup trace file that you can take using a span port or tap.VoIP Packet Fight: Troubleshooting Phone Initialization Problems
Using a Profitap/ProfiShark tap to understand why VoIP phones got stuck on initializing, we could find a workaround to get things up and running.A Look at The Good Old IPv4 Conflict
DHCP has made assigning, documenting, and troubleshooting duplicate IP addresses a lost art. Here are some tips on navigating the issues that can arise.Wireshark: IP Octet Capture Filter
In this video, you will learn how to configure a filter to capture packets that have a specific last octet. The technique can be used to capture packets with specific application signatures, viruses, worms, and more.
One Byte at a Time – Protocol Analysis
The cornerstone of effective troubleshooting is based on having clear data points. That way we can compare these values before and after the change and prove the true impact.
Navigating with Wireshark
Tony Fortunato takes you on a quick Wireshark navigational exercise. In the video, he provides examples and discusses filters and other topics to get you started.
Performance Testing: WinPcap versus Npcap
In this video, Tony Fortunato tests WinPcap versus Npcap. See which performs better.
Monitoring Windows Services for Free
Network analysts cannot simply rely on existing solutions when troubleshooting problems. Get creative and build your own Windows services monitoring tool.
Test Web Page Load Time with a Free Chrome Extension
A walk-through shows you how to use a free Chrome extension to measure web page loading times.
When Testing, Get Active
When troubleshooting application performance issues, ping alone may not detect the problem. That’s where active testing can help.
Troubleshooting Application Configuration for Security
In this video, Tony Fortunato uses Wireshark to show you how to get an application to run through a firewall.
How to Configure 2 IP Addresses
There are multiple occasions for which you may need two IPv4 addresses. This video from Tony Fortunato explains how to configure them.
Free WiFi Analysis Tool: WiFiInfoView
In this video, Tony Fortunato explains some WiFi troubleshooting basics and demonstrates a free WiFi utility for Windows.