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by elpocko
22 days ago
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A DPI firewall at a place of education had a whitelist of allowed domains that you could connect to from the internal network. One entry in the whitelist was "microsoft.com". I installed a web proxy on my VPS, which was accessible under a domain name like "computerthings.example", created a subdomain called "microsoft", and voila: "microsoft.computerthings.example" was good enough to match "^microsoft.com.*" and allowed us to bypass the block for the next two years. |
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