October 1, 2012
On the Evolution of Ubuntu
Ubuntu 12.10 ships with controversial new features that have some users upset. Colin shares his perspective on the changes.
Read ArticleBlog
Blog
IT Dojo blog: expert insights on cybersecurity, RMF, DoD compliance, certifications, networking, and federal IT. Updated regularly by our instructors.
September 14, 2012
SSH Using Link-Local IPv6 Addresses
How to SSH to a remote host using a link-local IPv6 address (fe80::/10), and why you must specify the interface or zone ID to make it work.
Read Article
September 11, 2012
The 600-lb Gorilla Sitting on the Shoulders of IPv6
In this post Colin addresses what he sees as the single biggest obstacle to the migration of the world to IPv6.
Read Article
September 10, 2012
A Glimpse Into the Future of IPv6 at Home
In this post Colin give a brief overview of prefix delegation, one of the coming features of most residential IPv6 deployments.
Read Article
September 7, 2012
Deprecate, Deprecate, Deprecate
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.
Read Article
September 6, 2012
Know Thy IPv6 Neighbor
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.
Read Article
September 5, 2012
Resolver Cache - Linux vs Windows
How DNS resolver caching differs between Windows and Linux: why Windows caches lookups in the OS, why most Linux systems do not, and how to check.
Read Article
July 16, 2012
Chief Information Officers Council – Roadmap Toward IPv6 Adoption for the Federal Government
Just last week (July 12, 2012), the Chief Information Officers Council released this updated version of the Roadmap Toward IPv6 Adoption for the Federal…
Read Article
December 30, 2011
Security Through Obscurity
The effectiveness of Security through Obscurity is closely related to the knowledge (or lack thereof) of the attacker.
Read Article
June 24, 2011
/64 or /126 Silliness
Should point-to-point links use /64 or /126 IPv6 prefixes? Why using /126 is IPv4 scar tissue and why address waste is not a real concern in IPv6.
Read Article
June 2, 2011
A Life Without Network Address Translation (NAT)
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.
Read Article
May 29, 2011
Pv6 Means Never Again Having to Wonder
In this post Colin discusses how to give every node in your enterprise the exact same default router IPv6 address and have it all still work.
Read Article