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@@ -29,7 +29,7 @@ await start() |
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The `rules` parameter must be an iterable [e.g. a list or a tuple] of tuples, where each tuple is regex pattern/replacement pair, passed to [re.subn](https://docs.python.org/3/library/re.html#re.subn) under the hood. On each incoming DNS request from downstream for a domain |
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- this list is iterated over; |
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- the first rule that matches the incoming domain name is used to rewrite the domain, the upstream DNS server is queries for A records, and these records, or error code, is returned downstream; |
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- the first rule that matches the incoming domain name is used to rewrite the domain, the upstream DNS server is queried for A records, and these records, or error code, is returned downstream; |
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- and if no rule matches a REFUSED response is returned downstream. |
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The response of REFUSED is deliberate for clients to be able to help differentiate between a configuration issue on the proxy, the proxy not working or not being contactable, and a domain actually not existing. |
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Michal Charemza
5 years ago