Worldnic DNS server outage teaches lesson… has a post on a DNS server outage for Worldnic. Which effects a number of Network Solutions customers. Apparently they’re aware of the problem and are working on a fix. It doesn’t affect EVERY Network Solutions customer, there are some specifics…

To clarify the impact to the casual reader:

Not all customers of Network Solutions are affected.

No root or TLD servers are known to reside on these machines.

It’s “just” individual domains that are affected, but it might be a lot of them.

Only domains that have all their namervers on these machines will have significant impact.

What I think is most interesting about this is the following….

There is a lesson to learn for those affected and those designing solutions. Do not put all your DNS servers on the same hardware, the same connections, the same location, … , the same management. Diversity is the key to success.

This is something I think ultimately is critical to internet security, heterogenious (spelling?) (mixed) networks ultimately offer a better more robust work environment. As long as they use standard protocols to talk to each other, with mixed networks (software and hardware and connections and locations) you are less likely to see everyone affected by the same problem. (Always have a plan B and if plan B is identical to A, it’s not another plan….)

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