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Updated Load Balancing Options (markdown)

Frank Denis 2024-02-26 16:03:16 +01:00
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Load-Balancing-Options.md

@ -10,7 +10,9 @@ When `dnscrypt-proxy`:
* Each time the server certificates (for DNSCrypt servers) are retrieved/validated (every `cert_refresh_delay` minutes, 60 minutes minimum)
* Each time the list of servers is retrieved (every `refresh_delay` hours)
It calculates an initial RTT (Round-Trip Time) estimation for each resolver (for DoH servers, two initial test queries are made). This list is then sorted from fastest to slowest resolver.
It calculates an initial RTT (Round-Trip Time) estimation for each resolver (for DoH servers, two initial test queries are made to measure latency with a reused connection). For DoH/ODoH/DoOH servers, the latency is computed by sending a query for the name servers of the root zone, which is always cached by resolvers. For DNSCrypt/Anonymized DNSCrypt, the latency is measured when retrieving the certificates (which also doesn't need the resolver to wait for upstream servers).
The list is then sorted from fastest to slowest resolver.
## How the servers are sorted