April 17, 2024
In the realm of cybersecurity, having the right tools and expertise is crucial for protecting organizations from evolving threats and ensuring robust defense …
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February 18, 2021
Below is a list of upcoming Guaranteed to Run Cisco classes running in Live Remote Online format that are coming up. If you are interested, please reach out to …
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January 17, 2017
The pool of knowledge required to earn your CCNA continues to get larger. It has become so large that it is no longer coverable in a 1-week training course.
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April 27, 2016
Apple uses a variety of scans for wireless LAN/physical location information. There are Preferred Network Offload (PNO) Scans, Enhanced Preferred Network …
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November 17, 2014
In the article, Colin offers his opinion on Net Neutrality.
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September 9, 2014
In this Post Colin explores the seldom mentioned OSX CLI airport utility and many of its WLAN configuration and and information gathering features.
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May 9, 2014
We are getting excited about our upcoming Offensive Wifi and Mitigation Techniques class. Gear has started to arrive! Check out these Mark V Pineapples that …
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January 21, 2014
In the article, Colin briefly describes the address types seen in IPv6: unicast, multicast, and anycast.
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January 16, 2014
Quick and easy web sites to visit to determine if you are IPv6 capable on the Internet.
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January 15, 2014
How to force the use of IPv6 using ssh from a terminal.
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January 14, 2014
ITdojo's v6 Vertex - Quick Tips & Tricks for IPv6 Users - Using the command line to view neighbors on Apple OS X devices
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October 2, 2012
In this post Colin discusses issues the Path MTU discovery (PMTUD) and its implications on networking with IPv6.
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September 14, 2012
In this post Colin reviews how to use link local IPv6 addresses to establish ssh connections to remote hosts.
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September 7, 2012
Those actively involved in the journey to IPv6 as the native transport encounter plenty of new terms and technology. One unexpected term stands out for Colin.
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September 6, 2012
In this post Colin reviews the items kept in the IPv6 neighbor cache and how to view the cache on Windows, Linux and Mac OSX systems.
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September 5, 2012
In this post Colin explores some of the differences in DNS behavior between Windows and Linux systems.
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June 24, 2011
A comment on the silliness of using /126 IPv6 prefixes for for P2P links.
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June 2, 2011
IPv6 means a world without NAT. In this post Colin attempts to help long-term IPv4 NAT users understand why everything is going to be just fine.
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May 9, 2011
Exploring the practical feasibility of ping sweeping IPv6 networks. Includes a spreadsheet for determining how long it will take to sweep your own network.
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May 4, 2011
Configuring Ubuntu's (any Linux distro, really) resolv.conf file with an IPv6 DNS server so you can natively query IPv6 DNS servers.
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May 2, 2011
A brief introduction to the newly created RFC that allows routers to provide DNS server information via Router Advertisements (RA).
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April 28, 2011
The beloved UNC path name, familiar to all who administer Microsoft. After all these years there is something comfortable and familiar in the simple act of …
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April 28, 2011
When discussing IPv6 addresses folks are often quick to say, "FE80 ...that's link-local." And it's true. The prefix FE80::/10 is reserved for link-local IPv6 …
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April 28, 2011
The Domain Internet Groper, or dig, as most of us know it, is considered by pretty much everybody in the 'nix community to be the replacement to nslookup. And I …
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