Version 6 of Debian.
https://www.debian.org/releases/squeeze/
Operating Systems and Servers
Get access to data on 157,495 websites Debian Squeeze Customers. We know of 25,038 live websites using Debian Squeeze and an additional 132,457 sites that used Debian Squeeze historically and 6,564 websites in the United States.
Get a list of 157,495 websites using Debian Squeeze which includes location information, hosting data, contact details, 25,038 currently live websites and an additional 5,390 domains that redirect to sites in this list. 132,457 sites that used this technology previouslyand 6,564 websites in the United States currently using Debian Squeeze.
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