################################################################################ ######################## STUBBY YAML CONFIG FILE ############################### ################################################################################ # This is a yaml version of the stubby configuration file (it replaces the # json based stubby.conf file used in earlier versions of getdns/stubby). # # For more information see # https://dnsprivacy.org/wiki/display/DP/Configuring+Stubby # # This format does not fully support all yaml features - the restrictions are: # - the outer-most data structure must be a yaml mapping # - mapping keys must be yaml scalars # - plain scalars will be converted to json unchanged # - non-plain scalars (quoted, double-quoted, wrapped) will be interpreted # as json strings, i.e. double quoted. # - yaml tags are not supported # - IPv6 addresses ending in :: are not yet supported (use ::0) # # Also beware that yaml is sensitive to the indentation at the start of each # line so if you encounter errors when parsing the config file then please check # that. We will add better checking but a useful online tool to check yaml # format is here (it also converts yaml to json) # https://yaml-online-parser.appspot.com/ # # Note that we plan to introduce a more compact format for defining upstreams # in future: https://github.com/getdnsapi/stubby/issues/79 ################################### LOGGING #################################### # Logging is currently configured at runtime using command line arguments. See # > stubby -h # for details. ########################## BASIC & PRIVACY SETTINGS ############################ # Specifies whether to run as a recursive or stub resolver # For stubby this MUST be set to GETDNS_RESOLUTION_STUB resolution_type: GETDNS_RESOLUTION_STUB # Ordered list composed of one or more transport protocols: # GETDNS_TRANSPORT_UDP, GETDNS_TRANSPORT_TCP or GETDNS_TRANSPORT_TLS # If only one transport value is specified it will be the only transport used. # Should it not be available basic resolution will fail. # Fallback transport options are specified by including multiple values in the # list. Strict mode (see below) should use only GETDNS_TRANSPORT_TLS. dns_transport_list: - GETDNS_TRANSPORT_TLS # Selects Strict or Opportunistic Usage profile as described in # https://datatracker.ietf.org/doc/draft-ietf-dprive-dtls-and-tls-profiles/ # Strict mode requires that authentication information for the upstreams is # specified below. Opportunistic may fallback to clear text DNS if UDP or TCP # is included in the transport list above. # For Strict use GETDNS_AUTHENTICATION_REQUIRED # For Opportunistic use GETDNS_AUTHENTICATION_NONE tls_authentication: GETDNS_AUTHENTICATION_REQUIRED # EDNS0 option to pad the size of the DNS query to the given blocksize # 128 is currently recommended by # https://tools.ietf.org/html/draft-ietf-dprive-padding-policy-03 tls_query_padding_blocksize: 128 # EDNS0 option for ECS client privacy as described in Section 7.1.2 of # https://tools.ietf.org/html/rfc7871 edns_client_subnet_private : 1 ############################# CONNECTION SETTINGS ############################## # Set to 1 to instruct stubby to distribute queries across all available name # servers - this will use multiple simultaneous connections which can give # better performance is most (but not all) cases. # Set to 0 to treat the upstreams below as an ordered list and use a single # upstream until it becomes unavailable, then use the next one. round_robin_upstreams: 1 # EDNS0 option for keepalive idle timeout in ms as specified in # https://tools.ietf.org/html/rfc7828 # This keeps idle TLS connections open to avoid the overhead of opening a new # connection for every query. idle_timeout: 10000 # Control the maximum number of connection failures that will be permitted # before Stubby backs-off from using an individual upstream (default 2) # tls_connection_retries: 5 # Control the maximum time in seconds Stubby will back-off from using an # individual upstream after failures under normal circumstances (default 3600) # tls_backoff_time: 300 # Specify where the location for CA certificates for verification purposes are # located. # tls_ca_path: "/etc/ssl/certs/" # Limit the total number of outstanding queries permitted # limit_outstanding_queries: 100 # Specify the timeout on getting a response to an individual request # (default 5s) # timeout: 1 # Set the acceptable ciphers for DNS over TLS. With OpenSSL 1.1.1 this list is # for TLS1.2 and older only. Ciphers for TLS1.3 should be set with the # tls_ciphersuites option. This option can also be given per upstream. # tls_cipher_list: "EECDH+AESGCM:EECDH+CHACHA20" # Set the acceptable cipher for DNS over TLS1.3. OpenSSL >= 1.1.1 is required # for this option. This option can also be given per upstream. # tls_ciphersuites: "TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_128_GCM_SHA256" # Set the minimum acceptable TLS version. Works with OpenSSL >= 1.1.1 only. # This option can also be given per upstream. # tls_min_version: GETDNS_TLS1_2 # Set the maximum acceptable TLS version. Works with OpenSSL >= 1.1.1 only. # This option can also be given per upstream. # tls_max_version: GETDNS_TLS1_3 ################################ LISTEN ADDRESS ################################ # Set the listen addresses for the stubby DAEMON. This specifies localhost IPv4 # and IPv6. It will listen on port 53 by default. Use @ to # specify a different port listen_addresses: - 0.0.0.0 ############################### DNSSEC SETTINGS ################################ # Require DNSSEC validation. This will withhold answers with BOGUS DNSSEC # status and answers that could not be validated (i.e. with DNSSEC status # INDETERMINATE). Beware that if no DNSSEC trust-anchor is provided, or if # stubby is not able to fetch and validate the DNSSEC trust-anchor itself, # (using Zero configuration DNSSEC) stubby will not return answers at all. # If DNSSEC validation is required, a trust-anchor is also required. # dnssec: GETDNS_EXTENSION_TRUE # Stubby tries to fetch and validate the DNSSEC root trust anchor on the fly # when needed (Zero configuration DNSSEC), but only if it can store then # somewhere. The default location to store these files is the ".getdns" # subdirectory in the user's home directory. If there is no home directory, or # the .getdns subdirectory could not be created (or is not present), Stubby # will fall back to the current working directory to try to store the # trust-anchor files. # # When stubby runs as a special system-level user without a home directory # however (such as in setups using systemd), it is recommended that an explicit # location for storing the trust-anchor files is provided that is writable (and # readable) by that special system user. # appdata_dir: "/var/cache/stubby" # When Zero configuration DNSSEC failed, because of network unavailability or # failure to write to the appdata directory, stubby will backoff trying to # refetch the DNSSEC trust-anchor for a specified amount of time expressed # in milliseconds (which defaults to two and a half seconds). # trust_anchors_backoff_time: 2500 # Specify the location of the installed trust anchor file (leave commented out # for zero configuration DNSSEC) # dnssec_trust_anchors: "/etc/unbound/getdns-root.key" ################################## UPSTREAMS ################################ # Specify the list of upstream recursive name servers to send queries to # In Strict mode upstreams need either a tls_auth_name or a tls_pubkey_pinset # so the upstream can be authenticated. # The list below includes all the available test servers but only has the subset # operated the stubby/getdns developers enabled. You can enable any of the # others you want to use by uncommenting the relevant section. See: # https://dnsprivacy.org/wiki/display/DP/DNS+Privacy+Test+Servers # If you don't have IPv6 then comment then out those upstreams. # In Opportunistic mode they only require an IP address in address_data. # The information for an upstream can include the following: # - address_data: IPv4 or IPv6 address of the upstream # port: Port for UDP/TCP (default is 53) # tls_auth_name: Authentication domain name checked against the server # certificate # tls_pubkey_pinset: An SPKI pinset verified against the keys in the server # certificate # - digest: Only "sha256" is currently supported # value: Base64 encoded value of the sha256 fingerprint of the public # key # tls_port: Port for TLS (default is 853) upstream_recursive_servers: ############################ DEFAULT UPSTREAMS ################################ ####### IPv4 addresses ###### ### Test servers ### # The Surfnet/Sinodun servers # - address_data: 145.100.185.15 # tls_auth_name: "dnsovertls.sinodun.com" # tls_pubkey_pinset: # - digest: "sha256" # value: 62lKu9HsDVbyiPenApnc4sfmSYTHOVfFgL3pyB+cBL4= # - address_data: 145.100.185.16 # tls_auth_name: "dnsovertls1.sinodun.com" # tls_pubkey_pinset: # - digest: "sha256" # value: cE2ecALeE5B+urJhDrJlVFmf38cJLAvqekONvjvpqUA= ## The getdnsapi.net server - address_data: 185.49.141.37 tls_auth_name: "getdnsapi.net" tls_pubkey_pinset: - digest: "sha256" value: foxZRnIh9gZpWnl+zEiKa0EJ2rdCGroMWm02gaxSc9Q= ####### IPv6 addresses ###### ### Test servers ### # The Surfnet/Sinodun servers - address_data: 2001:610:1:40ba:145:100:185:15 tls_auth_name: "dnsovertls.sinodun.com" tls_pubkey_pinset: - digest: "sha256" value: 62lKu9HsDVbyiPenApnc4sfmSYTHOVfFgL3pyB+cBL4= - address_data: 2001:610:1:40ba:145:100:185:16 tls_auth_name: "dnsovertls1.sinodun.com" tls_pubkey_pinset: - digest: "sha256" value: cE2ecALeE5B+urJhDrJlVFmf38cJLAvqekONvjvpqUA= # The getdnsapi.net server - address_data: 2a04:b900:0:100::38 tls_auth_name: "getdnsapi.net" tls_pubkey_pinset: - digest: "sha256" value: foxZRnIh9gZpWnl+zEiKa0EJ2rdCGroMWm02gaxSc9Q= ############################ OPTIONAL UPSTREAMS ############################### ####### IPv4 addresses ###### ### Anycast services ### ## Quad 9 'secure' service - Filters, does DNSSEC, doesn't send ECS # - address_data: 9.9.9.9 # tls_auth_name: "dns.quad9.net" ## Quad 9 'insecure' service - No filtering, does DNSSEC, may send ECS (it is ## unclear if it honours the edns_client_subnet_private request from stubby) # - address_data: 9.9.9.10 # tls_auth_name: "dns.quad9.net" ## Cloudflare 1.1.1.1 and 1.0.0.1 - address_data: 1.1.1.1 tls_auth_name: "cloudflare-dns.com" - address_data: 1.0.0.1 tls_auth_name: "cloudflare-dns.com" # The Uncensored DNS servers # - address_data: 89.233.43.71 # tls_auth_name: "unicast.censurfridns.dk" # tls_pubkey_pinset: # - digest: "sha256" # value: wikE3jYAA6jQmXYTr/rbHeEPmC78dQwZbQp6WdrseEs= ## Fondation RESTENA (NREN for Luxembourg) # - address_data: 158.64.1.29 # tls_auth_name: "kaitain.restena.lu" # tls_pubkey_pinset: # - digest: "sha256" # value: 7ftvIkA+UeN/ktVkovd/7rPZ6mbkhVI7/8HnFJIiLa4= ## Google # - address_data: 8.8.8.8 # tls_auth_name: "dns.google" # - address_data: 8.8.4.4 # tls_auth_name: "dns.google" ### Test servers ### ## A Surfnet/Sinodun server supporting TLS 1.2 and 1.3 # - address_data: 145.100.185.18 # tls_auth_name: "dnsovertls3.sinodun.com" # tls_pubkey_pinset: # - digest: "sha256" # value: 5SpFz7JEPzF71hditH1v2dBhSErPUMcLPJx1uk2svT8= ## A Surfnet/Sinodun server using Knot resolver. Warning - has issue when used ## for DNSSEC # - address_data: 145.100.185.17 # tls_auth_name: "dnsovertls2.sinodun.com" # tls_pubkey_pinset: # - digest: "sha256" # value: NAXBESvpjZMnPWQcrxa2KFIkHV/pDEIjRkA3hLWogSg= ## dns.cmrg.net server using Knot resolver. Warning - has issue when used for ## DNSSEC. # - address_data: 199.58.81.218 # tls_auth_name: "dns.cmrg.net" # tls_pubkey_pinset: # - digest: "sha256" # value: 3IOHSS48KOc/zlkKGtI46a9TY9PPKDVGhE3W2ZS4JZo= # - digest: "sha256" # value: 5zFN3smRPuHIlM/8L+hANt99LW26T97RFHqHv90awjo= ## dns.larsdebruin.net (formerly dns1.darkmoon.is) # - address_data: 51.15.70.167 # tls_auth_name: "dns.larsdebruin.net " # tls_pubkey_pinset: # - digest: "sha256" # value: AAT+rHoKx5wQkWhxlfrIybFocBu3RBrPD2/ySwIwmvA= ## dot.securedns.eu # - address_data: 146.185.167.43 # tls_auth_name: "dot.securedns.eu" # tls_pubkey_pinset: # - digest: "sha256" # value: h3mufC43MEqRD6uE4lz6gAgULZ5/riqH/E+U+jE3H8g= ## dns-tls.bitwiseshift.net # - address_data: 81.187.221.24 # tls_auth_name: "dns-tls.bitwiseshift.net" # tls_pubkey_pinset: # - digest: "sha256" # value: YmcYWZU5dd2EoblZHNf1jTUPVS+uK3280YYCdz4l4wo= ## ns1.dnsprivacy.at # - address_data: 94.130.110.185 # tls_auth_name: "ns1.dnsprivacy.at" # tls_pubkey_pinset: # - digest: "sha256" # value: vqVQ9TcoR9RDY3TpO0MTXw1YQLjF44zdN3/4PkLwtEY= ## ns2.dnsprivacy.at # - address_data: 94.130.110.178 # tls_auth_name: "ns2.dnsprivacy.at" # tls_pubkey_pinset: # - digest: "sha256" # value: s5Em89o0kigwfBF1gcXWd8zlATSWVXsJ6ecZfmBDTKg= ## dns.bitgeek.in # - address_data: 139.59.51.46 # tls_auth_name: "dns.bitgeek.in" # tls_pubkey_pinset: # - digest: "sha256" # value: FndaG4ezEBQs4k0Ya3xt3z4BjFEyQHd7B75nRyP1nTs= ## Lorraine Data Network (self-signed cert). # - address_data: 80.67.188.188 # tls_pubkey_pinset: # - digest: "sha256" # value: WaG0kHUS5N/ny0labz85HZg+v+f0b/UQ73IZjFep0nM= ## dns.neutopia.org # - address_data: 89.234.186.112 # tls_auth_name: "dns.neutopia.org" # tls_pubkey_pinset: # - digest: "sha256" # value: wTeXHM8aczvhRSi0cv2qOXkXInoDU+2C+M8MpRyT3OI= ## NIC Chile (self-signed cert) # - address_data: 200.1.123.46 # tls_pubkey_pinset: # - digest: "sha256" # value: sG6kj+XJToXwt1M6+9BeCz1SOj/1/mdZn56OZvCyZZc= ## # OARC. Note: this server currently doesn't support strict mode! ## - address_data: 184.105.193.78 ## tls_auth_name: "tls-dns-u.odvr.dns-oarc.net" ## tls_pubkey_pinset: ## - digest: "sha256" ## value: pOXrpUt9kgPgbWxBFFcBTbRH2heo2wHwXp1fd4AEVXI= ####### IPv6 addresses ####### ### Anycast services ### ## Quad 9 'secure' service - Filters, does DNSSEC, doesn't send ECS # - address_data: 2620:fe::fe # tls_auth_name: "dns.quad9.net" ## Quad 9 'insecure' service - No filtering, does DNSSEC, may send ECS (it is ## unclear if it honours the edns_client_subnet_private request from stubby) # - address_data: 2620:fe::10 # tls_auth_name: "dns.quad9.net" ## Cloudflare servers # - address_data: 2606:4700:4700::1111 # tls_auth_name: "cloudflare-dns.com" # - address_data: 2606:4700:4700::1001 # tls_auth_name: "cloudflare-dns.com" ## Google # - address_data: 2001:4860:4860::8888 # tls_auth_name: "dns.google" # - address_data: 2001:4860:4860::8844 # tls_auth_name: "dns.google" ### Test servers ### ## The Uncensored DNS server # - address_data: 2a01:3a0:53:53::0 # tls_auth_name: "unicast.censurfridns.dk" # tls_pubkey_pinset: # - digest: "sha256" # value: wikE3jYAA6jQmXYTr/rbHeEPmC78dQwZbQp6WdrseEs= ## Fondation RESTENA (NREN for Luxembourg) # - address_data: 2001:a18:1::29 # tls_auth_name: "kaitain.restena.lu" # tls_pubkey_pinset: # - digest: "sha256" # value: 7ftvIkA+UeN/ktVkovd/7rPZ6mbkhVI7/8HnFJIiLa4= ## A Surfnet/Sinodun server supporting TLS 1.2 and 1.3 # - address_data: 2001:610:1:40ba:145:100:185:18 # tls_auth_name: "dnsovertls3.sinodun.com" # tls_pubkey_pinset: # - digest: "sha256" # value: 5SpFz7JEPzF71hditH1v2dBhSErPUMcLPJx1uk2svT8= ## A Surfnet/Sinodun server using Knot resolver. Warning - has issue when used ## for DNSSEC # - address_data: 2001:610:1:40ba:145:100:185:17 # tls_auth_name: "dnsovertls2.sinodun.com" # tls_pubkey_pinset: # - digest: "sha256" # value: NAXBESvpjZMnPWQcrxa2KFIkHV/pDEIjRkA3hLWogSg= ## dns.cmrg.net server using Knot resolver. Warning - has issue when used for ## DNSSEC. # - address_data: 2001:470:1c:76d::53 # tls_auth_name: "dns.cmrg.net" # tls_pubkey_pinset: # - digest: "sha256" # value: 3IOHSS48KOc/zlkKGtI46a9TY9PPKDVGhE3W2ZS4JZo= # - digest: "sha256" # value: 5zFN3smRPuHIlM/8L+hANt99LW26T97RFHqHv90awjo= ## dot.securedns.eu # - address_data: 2a03:b0c0:0:1010::e9a:3001 # tls_auth_name: "dot.securedns.eu" # tls_pubkey_pinset: # - digest: "sha256" # value: h3mufC43MEqRD6uE4lz6gAgULZ5/riqH/E+U+jE3H8g= ## dns-tls.bitwiseshift.net # - address_data: 2001:8b0:24:24::24 # tls_auth_name: "dns-tls.bitwiseshift.net" # tls_pubkey_pinset: # - digest: "sha256" # value: YmcYWZU5dd2EoblZHNf1jTUPVS+uK3280YYCdz4l4wo= ## ns1.dnsprivacy.at # - address_data: 2a01:4f8:c0c:3c03::2 # tls_auth_name: "ns1.dnsprivacy.at" # tls_pubkey_pinset: # - digest: "sha256" # value: vqVQ9TcoR9RDY3TpO0MTXw1YQLjF44zdN3/4PkLwtEY= ## ns2.dnsprivacy.at # - address_data: 2a01:4f8:c0c:3bfc::2 # tls_auth_name: "ns2.dnsprivacy.at" # tls_pubkey_pinset: # - digest: "sha256" # value: s5Em89o0kigwfBF1gcXWd8zlATSWVXsJ6ecZfmBDTKg= ## Go6Lab # - address_data: 2001:67c:27e4::35 # tls_auth_name: "privacydns.go6lab.si" # tls_pubkey_pinset: # - digest: "sha256" # value: g5lqtwHia/plKqWU/Fe2Woh4+7MO3d0JYqYJpj/iYAw= ## Lorraine Data Network (self-signed cert). # - address_data: 2001:913::8 # tls_pubkey_pinset: # - digest: "sha256" # value: WaG0kHUS5N/ny0labz85HZg+v+f0b/UQ73IZjFep0nM= ## dns.neutopia.org # - address_data: 2a00:5884:8209::2 # tls_auth_name: "dns.neutopia.org" # tls_pubkey_pinset: # - digest: "sha256" # value: wTeXHM8aczvhRSi0cv2qOXkXInoDU+2C+M8MpRyT3OI= ## NIC Chile (self-signed cert) # - address_data: 2001:1398:1:0:200:1:123:46 # tls_pubkey_pinset: # - digest: "sha256" # value: sG6kj+XJToXwt1M6+9BeCz1SOj/1/mdZn56OZvCyZZc= ## # OARC. Note: this server currently doesn't support strict mode! ## - address_data: 2620:ff:c000:0:1::64:25 ## tls_auth_name: "tls-dns-u.odvr.dns-oarc.net" ## tls_pubkey_pinset: ## - digest: "sha256" ## value: pOXrpUt9kgPgbWxBFFcBTbRH2heo2wHwXp1fd4AEVXI= ####### Servers that listen on port 443 (IPv4 and IPv6) ####### ### Test servers ### ## Surfnet/Sinodun servers # - address_data: 145.100.185.15 # tls_port: 443 # tls_auth_name: "dnsovertls.sinodun.com" # tls_pubkey_pinset: # - digest: "sha256" # value: 62lKu9HsDVbyiPenApnc4sfmSYTHOVfFgL3pyB+cBL4= # - address_data: 145.100.185.16 # tls_port: 443 # tls_auth_name: "dnsovertls1.sinodun.com" # tls_pubkey_pinset: # - digest: "sha256" # value: cE2ecALeE5B+urJhDrJlVFmf38cJLAvqekONvjvpqUA= ## dns.cmrg.net server using Knot resolver # - address_data: 199.58.81.218 # tls_port: 443 # tls_auth_name: "dns.cmrg.net" # tls_pubkey_pinset: # - digest: "sha256" # value: 3IOHSS48KOc/zlkKGtI46a9TY9PPKDVGhE3W2ZS4JZo= # - digest: "sha256" # value: 5zFN3smRPuHIlM/8L+hANt99LW26T97RFHqHv90awjo= ## Lorraine Data Network (self-signed cert) # - address_data: 80.67.188.188 # tls_port: 443 # tls_pubkey_pinset: # - digest: "sha256" # value: WaG0kHUS5N/ny0labz85HZg+v+f0b/UQ73IZjFep0nM= ## dns.neutopia.org # - address_data: 89.234.186.112 # tls_port: 443 # tls_auth_name: "dns.neutopia.org" # tls_pubkey_pinset: # - digest: "sha256" # value: wTeXHM8aczvhRSi0cv2qOXkXInoDU+2C+M8MpRyT3OI= ## The Surfnet/Sinodun servers # - address_data: 2001:610:1:40ba:145:100:185:15 # tls_port: 443 # tls_auth_name: "dnsovertls.sinodun.com" # tls_pubkey_pinset: # - digest: "sha256" # value: 62lKu9HsDVbyiPenApnc4sfmSYTHOVfFgL3pyB+cBL4= # - address_data: 2001:610:1:40ba:145:100:185:16 # tls_port: 443 # tls_auth_name: "dnsovertls1.sinodun.com" # tls_pubkey_pinset: # - digest: "sha256" # value: cE2ecALeE5B+urJhDrJlVFmf38cJLAvqekONvjvpqUA= ## dns.cmrg.net server using Knot resolver # - address_data: 2001:470:1c:76d::53 # tls_port: 443 # tls_auth_name: "dns.cmrg.net" # tls_pubkey_pinset: # - digest: "sha256" # value: 3IOHSS48KOc/zlkKGtI46a9TY9PPKDVGhE3W2ZS4JZo= # - digest: "sha256" # value: 5zFN3smRPuHIlM/8L+hANt99LW26T97RFHqHv90awjo= ## Lorraine Data Network (self-signed cert) # - address_data: 2001:913::8 # tls_port: 443 # tls_pubkey_pinset: # - digest: "sha256" # value: WaG0kHUS5N/ny0labz85HZg+v+f0b/UQ73IZjFep0nM= ## dns.neutopia.org # - address_data: 2a00:5884:8209::2 # tls_port: 443 # tls_auth_name: "dns.neutopia.org" # tls_pubkey_pinset: # - digest: "sha256" # value: wTeXHM8aczvhRSi0cv2qOXkXInoDU+2C+M8MpRyT3OI=