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docs: more annotations for dns section

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mzz2017 2023-03-27 12:45:10 +08:00
parent 97a4e956fe
commit cc50bea0fc
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16
docs/dns.md
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@ -20,6 +20,8 @@ dns {
# The routing format of 'request' and 'response' is similar with section 'routing'. # The routing format of 'request' and 'response' is similar with section 'routing'.
# See https://github.com/daeuniverse/dae/blob/main/docs/routing.md # See https://github.com/daeuniverse/dae/blob/main/docs/routing.md
routing { routing {
# According to the request of dns query, decide to use which DNS upstream.
# Match rules from top to bottom.
request { request {
# Built-in upstream in 'request': asis. # Built-in upstream in 'request': asis.
# You can also use user-defined upstreams. # You can also use user-defined upstreams.
@ -36,6 +38,8 @@ dns {
# If no match, fallback to this upstream. # If no match, fallback to this upstream.
fallback: asis fallback: asis
} }
# According to the response of dns query, decide to accept or re-lookup using another DNS upstream.
# Match rules from top to bottom.
response { response {
# No built-in upstream in 'response'. # No built-in upstream in 'response'.
# You can use user-defined upstreams. # You can use user-defined upstreams.
@ -63,8 +67,12 @@ dns {
alidns: 'udp://dns.alidns.com:53' alidns: 'udp://dns.alidns.com:53'
} }
routing { routing {
# According to the request of dns query, decide to use which DNS upstream.
# Match rules from top to bottom.
request { request {
# Lookup China mainland domains using alidns, otherwise googledns.
qname(geosite:cn) -> alidns qname(geosite:cn) -> alidns
# fallback is also called default.
fallback: googledns fallback: googledns
} }
} }
@ -79,12 +87,20 @@ dns {
alidns: 'udp://dns.alidns.com:53' alidns: 'udp://dns.alidns.com:53'
} }
routing { routing {
# According to the request of dns query, decide to use which DNS upstream.
# Match rules from top to bottom.
request { request {
# fallback is also called default.
fallback: alidns fallback: alidns
} }
# According to the response of dns query, decide to accept or re-lookup using another DNS upstream.
# Match rules from top to bottom.
response { response {
# Trusted upstream. Always accept its result.
upstream(googledns) -> accept upstream(googledns) -> accept
# Possibly polluted, re-lookup using googledns.
!qname(geosite:cn) && ip(geoip:private) -> googledns !qname(geosite:cn) && ip(geoip:private) -> googledns
# fallback is also called default.
fallback: accept fallback: accept
} }
} }

8
example.dae
View File

@ -89,12 +89,20 @@ dns {
googledns: 'tcp+udp://dns.google:53' googledns: 'tcp+udp://dns.google:53'
} }
routing { routing {
# According to the request of dns query, decide to use which DNS upstream.
# Match rules from top to bottom.
request { request {
# fallback is also called default.
fallback: alidns fallback: alidns
} }
# According to the response of dns query, decide to accept or re-lookup using another DNS upstream.
# Match rules from top to bottom.
response { response {
# Trusted upstream. Always accept its result.
upstream(googledns) -> accept upstream(googledns) -> accept
# Possibly polluted, re-lookup using googledns.
!qname(geosite:cn) && ip(geoip:private) -> googledns !qname(geosite:cn) && ip(geoip:private) -> googledns
# fallback is also called default.
fallback: accept fallback: accept
} }
} }