Add Quad9 back to the list of servers with broken padding

This commit is contained in:
Frank Denis 2020-03-25 18:11:16 +01:00
parent 81c8d68462
commit 25b89e57ae
2 changed files with 6 additions and 4 deletions

View File

@ -134,7 +134,7 @@ func newConfig() Config {
LBEstimator: true,
BlockedQueryResponse: "hinfo",
BrokenImplementations: BrokenImplementationsConfig{
BrokenQueryPadding: []string{"cisco", "cisco-ipv6", "cisco-familyshield"},
BrokenQueryPadding: []string{"cisco", "cisco-ipv6", "cisco-familyshield", "quad9-dnscrypt-ip4-filter-alt", "quad9-dnscrypt-ip4-filter-pri", "quad9-dnscrypt-ip4-nofilter-alt", "quad9-dnscrypt-ip4-nofilter-pri", "quad9-dnscrypt-ip6-filter-alt", "quad9-dnscrypt-ip6-filter-pri", "quad9-dnscrypt-ip6-nofilter-alt", "quad9-dnscrypt-ip6-nofilter-pri"},
},
}
}

View File

@ -624,12 +624,14 @@ cache_neg_max_ttl = 600
# Cisco servers currently cannot handle queries larger than 1472 bytes, and don't
# truncate reponses larger than questions as expected by the DNSCrypt protocol.
# This prevents large responses from being received, and breaks relaying.
# Quad9 ignores the query instead of sending a truncated response when the
# response is larger than the question.
# This prevents large responses from being received over UDP, and breaks relaying.
# A workaround for the first issue will be applied to servers in list below.
# Quad9 appears to be dropping fragmented UDP queries, but only for some networks.
# Relaying cannot be reliable until the servers are fixed.
# Do not change that list until the bugs are fixed server-side.
broken_query_padding = ['cisco', 'cisco-ipv6', 'cisco-familyshield']
broken_query_padding = ['cisco', 'cisco-ipv6', 'cisco-familyshield', 'quad9-dnscrypt-ip4-filter-alt', 'quad9-dnscrypt-ip4-filter-pri', 'quad9-dnscrypt-ip4-nofilter-alt', 'quad9-dnscrypt-ip4-nofilter-pri', 'quad9-dnscrypt-ip6-filter-alt', 'quad9-dnscrypt-ip6-filter-pri', 'quad9-dnscrypt-ip6-nofilter-alt', 'quad9-dnscrypt-ip6-nofilter-pri']