September 5, 2012
Resolver Cache - Linux vs Windows
In this post Colin explores some of the differences in DNS behavior between Windows and Linux systems.
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IT Dojo blog: expert insights on cybersecurity, RMF, DoD compliance, certifications, networking, and federal IT. Updated regularly by our instructors.
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…
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December 30, 2011
Security Through Obscurity
The effectiveness of Security through Obscurity is closely related to the knowledge (or lack thereof) of the attacker.
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June 24, 2011
/64 or /126 Silliness
A comment on the silliness of using /126 IPv6 prefixes for for P2P links.
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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.
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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.
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May 20, 2011
In the World I See…
I wrote this post several years ago. By writing it I was trying to get people to begin to think about how the size of the IPv6 address space, when combined…
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May 20, 2011
The Debate Surrounding Section 6.5.4.1
The IANA (Internet Assigned Number Authority) distributes IPv6 address to RIR's (Regional Internet Registry's) around the world.
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May 9, 2011
On the Practical Feasibility of Ping Sweeping IPv6 Networks
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
Basic IPv6 Resolver Configuration in Ubuntu
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 3, 2011
The Sound of IPv6 Inevitability
The need to migrate to IPv6 is imminent. The IPv4 address space is exhausted. Corporate America can no longer ignore the signs; it's time to get moving.
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May 2, 2011
Delivering DNS via IPv6 Router Advertisements
A brief introduction to the newly created RFC that allows routers to provide DNS server information via Router Advertisements (RA).
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