DNS Gaffe Breaks Sweden's Internet update from October 2009

A domain name system error knocked Sweden's top-level domain offline for more than an hour last night, once again illustrating how small errors in DNS settings can have huge impacts in the real world.

Data Center Knowledge

October 13, 2009

1 Min Read
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A domain name system error knocked Sweden's top-level domain offline for more than an hour last night, once again illustrating how small errors in DNS settings can have huge impacts in the real world. "The entire Swedish Internet effectively stopped working," reports Pingdom, the web site monitoring service, which is based in Sweden. "Swedish (.se) websites could not be reached, email to Swedish domain names stopped working, and for many these problems persist still."

More than 900,000 .se domains were affected by the error. The problem? An update script left off a terminating “.” to the DNS records for the .se zone. "It is a seemingly small detail, but without it, the whole DNS lookup chain broke down," Pingdom notes. See their full report for more.

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Data Center Knowledge, a sister site to ITPro Today, is a leading online source of daily news and analysis about the data center industry. Areas of coverage include power and cooling technology, processor and server architecture, networks, storage, the colocation industry, data center company stocks, cloud, the modern hyper-scale data center space, edge computing, infrastructure for machine learning, and virtual and augmented reality. Each month, hundreds of thousands of data center professionals (C-level, business, IT and facilities decision-makers) turn to DCK to help them develop data center strategies and/or design, build and manage world-class data centers. These buyers and decision-makers rely on DCK as a trusted source of breaking news and expertise on these specialized facilities.

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