Tips Tricks, How To’s, and Stuff

This section contains general information, tips and tricks, light reading, entertainment and other general fodder.  Enjoy!

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OpenFlow Overview

We thought it would be useful to our networking colleagues to provide an overview of the OpenFlow protocol.  Let’s begin with a broad definition of what OpenFlow is.   OpenFlow is a communications protocol that uses network-centric, network-aware intelligence in it’s communication design.   OpenFlow works on Software Defined Network (SDN) controllers placed in the […]

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A Wireshark Wi-Fi WLAN Troubleshooting Configuration Profile

 For those of you who love Wireshark and are supporting Wi-Fi Wireless networks, we would like to offer a great default profile for WiFi.   Let’s make no bones about this capturing and analyzing Wi-Fi traffic is not as easy (you have to be in Monitor Mode) as just selecting this profile and clicking capture. 

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Windows dumpcap

How To Use ‘dumpcap’ Natively on your Computer

Most users of Wireshark and T-Shark are unaware that neither of these programs alone actually captures packets!   Both programs use a third program that is distributed with Wireshark and was installed on your (Linux, MAC or Windows) system called ‘dumpcap’ to do the packet capturing.   Since dumpcap is a program itself, you can

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A Wireshark Basic BGP Configuration Profile

For those of you who love Wireshark and are supporting BGP, we would like to offer a great default profile for basic BGP.  Consider for a moment what would be important in your network administration in basic BGP: Being able to filter BGP packets quickly, as well as finding potentially bogus BGP Colorizing BGP message

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A Wireshark TCP Troubleshooting Configuration Profile

  Most network engineers and technicians are quickly discovering that with “everything over IP” we are required to understand exactly what this means.  For a lot of the standard, traditional data communications between clients and servers this means transport over TCP.   Furthermore, it requires the ability to troubleshoot TCP.  To troubleshoot TCP you have

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A Wireshark IPv4 Configuration Profile

For those of you who love Wireshark and are supporting IPv4, we would like to offer a great default profile for IPv4. Profiles are one of the most important Wireshark capabilities.  Setting up and using different profiles for different environments, protocols, and tasks is a crucial skill that we teach in our Wireshark courses.  Let’s

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A Wireshark DNS Configuration Profile

For those of you who love Wireshark and are needing to analyze DNS Queries and Responses, we have the profile for you. Profiles are one of the most important Wireshark capabilities.  Setting up and using different profiles for different environments, protocols, and tasks is a crucial skill that we teach in our Wireshark courses.  Let’s

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A Wireshark ARP Configuration Profile

For those of you who love Wireshark and are needing to analyze ARP packets, we have the profile for you. Profiles are one of the most important Wireshark capabilities.  Setting up and using different profiles for different environments, protocols, and tasks is a crucial skill that we teach in our Wireshark courses.  Let’s say you

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nmap

Getting Started with nmap

Nmap (“Network Mapper”) is a free and open source (license) utility for network discovery and security auditing that has been around since 1997. Surveillance and network scanning is often one of the first steps in Penetration Testing or Security Validation. Many systems and network administrators also find it useful for tasks such as network inventory,

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