2019-05-13 15:23:14 +00:00
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---
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2021-09-09 09:38:24 +00:00
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summary: 'A host that is canonically resolved to an address or set of addresses'
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2019-05-13 15:23:14 +00:00
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terms: ["Canonically-unique-host"]
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---
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2020-08-16 17:11:02 +00:00
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{% include disclaimer.html translated="no" translationOutdated="no" %}
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2021-09-09 09:38:24 +00:00
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2019-05-13 15:23:14 +00:00
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### The Basics
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2021-09-09 09:38:24 +00:00
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A Canonically-unique host is a [FQDN](https://en.wikipedia.org/wiki/FQDN)
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that will canonically resolve to a designated address or set of
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addresses. Not to be confused with a @locally-unique-host.
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2019-05-13 15:23:14 +00:00
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### In-depth information
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2021-09-09 09:38:24 +00:00
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A Canonically-unique host is defined by remote authoritative sources;
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usually through [DNS](https://en.wikipedia.org/wiki/DNS). When resolving a
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peer's hostname, you will most likely use an external source for resolution
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unless you have the following implemented:
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2019-05-13 15:23:14 +00:00
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2021-09-09 09:38:24 +00:00
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- a database file similar to a [hosts
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file](https://en.wikipedia.org/wiki/Hosts_(file)) - an internal-network
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resolver (which eventually pulls from external sources)
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2019-05-13 15:23:14 +00:00
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### Notes
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2021-09-09 09:38:24 +00:00
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- Monero primarily uses @canonically-unique-host resolution while I2P only
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uses @locally-unique-host resolution. - I2P's and @Kovri's self-assigned
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top-level domain is currently `.i2p` and @Kovri intends to only process/use
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the `.i2p` [top-level
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domain](https://en.wikipedia.org/wiki/Top_level_domain)
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