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Don't check IP addresses against non-IAP sources #144

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gwire opened this issue Jun 21, 2021 · 0 comments
Open

Don't check IP addresses against non-IAP sources #144

gwire opened this issue Jun 21, 2021 · 0 comments

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@gwire
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gwire commented Jun 21, 2021

Occasionally IAPs will block access by routing specific IP addresses to their blocking infrastructure, for example this recent block for 186.2.163.219 targeting sci-hub.

For IP-based lookups, the public DNS checks (OpenDNS, CloudFlare Family DNS) should be skipped and have a neutral "Not Applicable" result. Currently an IP address lookup will give "Address lookup failed".
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