n/dns.md: mention that subnet is not limited to /24 or /56 but to server configuration
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n/dns.md
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n/dns.md
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@ -66,7 +66,8 @@ least temporary. Thus I think this list belongs here close enough.
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## What is ECS?
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## What is ECS?
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EDNS Client-Subnet is a DNS extension letting the authoritative nameserver
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EDNS Client-Subnet is a DNS extension letting the authoritative nameserver
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know your `/24` (IPv4) or `/56` (IPv6).
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know your subnet, generally a `/24` (IPv4) or a `/56` (IPv6), but the revealed
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subnet size is up to your DNS resolver configuration.
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- /24 is the first three parts of your IPv4 address e.g. 192.0.2.xxx.
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- /24 is the first three parts of your IPv4 address e.g. 192.0.2.xxx.
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The last part of your IP address (the xxx) again is a number between 1
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The last part of your IP address (the xxx) again is a number between 1
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