############################################## # # # dnscrypt-proxy configuration # # # ############################################## ## This is an example configuration file. ## You should adjust it to your needs, and save it as "dnscrypt-proxy.toml" ## ## Online documentation is available here: https://dnscrypt.info/doc ################################## # Global settings # ################################## ## List of servers to use ## ## Servers from the "public-resolvers" source (see down below) can ## be viewed here: https://dnscrypt.info/public-servers ## ## The proxy will automatically pick working servers from this list. ## Note that the require_* filters do NOT apply when using this setting. ## ## By default, this list is empty and all registered servers matching the ## require_* filters will be used instead. ## ## Remove the leading # first to enable this; lines starting with # are ignored. server_names = ['acsacsar-ams-ipv4', 'dnscrypt.eu-dk', 'dnscrypt.eu-nl', 'dnscrypt.uk-ipv4', 'meganerd', 'publicarray-au', 'scaleway-ams', 'scaleway-fr', 'v.dnscrypt.uk-ipv4', 'yofiji-se-ipv4'] ## List of local addresses and ports to listen to. Can be IPv4 and/or IPv6. ## Example with both IPv4 and IPv6: ## listen_addresses = ['127.0.0.1:53', '[::1]:53'] listen_addresses = ['127.0.0.1:5354'] ## Maximum number of simultaneous client connections to accept max_clients = 250 ## Switch to a different system user after listening sockets have been created. ## Note (1): this feature is currently unsupported on Windows. ## Note (2): this feature is not compatible with systemd socket activation. ## Note (3): when using -pidfile, the PID file directory must be writable by the new user # user_name = 'nobody' ## Require servers (from static + remote sources) to satisfy specific properties # Use servers reachable over IPv4 ipv4_servers = true # Use servers reachable over IPv6 -- Do not enable if you don't have IPv6 connectivity ipv6_servers = false # Use servers implementing the DNSCrypt protocol dnscrypt_servers = true # Use servers implementing the DNS-over-HTTPS protocol doh_servers = false ## Require servers defined by remote sources to satisfy specific properties # Server must support DNS security extensions (DNSSEC) require_dnssec = true # Server must not log user queries (declarative) require_nolog = true # Server must not enforce its own blocklist (for parental control, ads blocking...) require_nofilter = true # Server names to avoid even if they match all criteria disabled_server_names = [] ## Always use TCP to connect to upstream servers. ## This can be useful if you need to route everything through Tor. ## Otherwise, leave this to `false`, as it doesn't improve security ## (dnscrypt-proxy will always encrypt everything even using UDP), and can ## only increase latency. force_tcp = false ## SOCKS proxy ## Uncomment the following line to route all TCP connections to a local Tor node ## Tor doesn't support UDP, so set `force_tcp` to `true` as well. # proxy = 'socks5://127.0.0.1:9050' ## HTTP/HTTPS proxy ## Only for DoH servers # http_proxy = 'http://127.0.0.1:8888' ## How long a DNS query will wait for a response, in milliseconds. ## If you have a network with *a lot* of latency, you may need to ## increase this. Startup may be slower if you do so. ## Don't increase it too much. 10000 is the highest reasonable value. timeout = 1500 ## Keepalive for HTTP (HTTPS, HTTP/2) queries, in seconds keepalive = 30 ## Response for blocked queries. Options are `refused`, `hinfo` (default) or ## an IP response. To give an IP response, use the format `a:,aaaa:`. ## Using the `hinfo` option means that some responses will be lies. ## Unfortunately, the `hinfo` option appears to be required for Android 8+ blocked_query_response = 'refused' ## Load-balancing strategy: 'p2' (default), 'ph', 'first' or 'random' # lb_strategy = 'p2' ## Set to `true` to constantly try to estimate the latency of all the resolvers ## and adjust the load-balancing parameters accordingly, or to `false` to disable. # lb_estimator = true ## Log level (0-6, default: 2 - 0 is very verbose, 6 only contains fatal errors) # log_level = 2 ## Log file for the application, as an alternative to sending logs to ## the standard system logging service (syslog/Windows event log). ## ## This file is different from other log files, and will not be ## automatically rotated by the application. # log_file = 'dnscrypt-proxy.log' ## When using a log file, only keep logs from the most recent launch. # log_file_latest = true ## Use the system logger (syslog on Unix, Event Log on Windows) # use_syslog = true ## Delay, in minutes, after which certificates are reloaded cert_refresh_delay = 240 ## DNSCrypt: Create a new, unique key for every single DNS query ## This may improve privacy but can also have a significant impact on CPU usage ## Only enable if you don't have a lot of network load dnscrypt_ephemeral_keys = true ## DoH: Disable TLS session tickets - increases privacy but also latency # tls_disable_session_tickets = false ## DoH: Use a specific cipher suite instead of the server preference ## 49199 = TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 ## 49195 = TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 ## 52392 = TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305 ## 52393 = TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305 ## 4865 = TLS_AES_128_GCM_SHA256 ## 4867 = TLS_CHACHA20_POLY1305_SHA256 ## ## On non-Intel CPUs such as MIPS routers and ARM systems (Android, Raspberry Pi...), ## the following suite improves performance. ## This may also help on Intel CPUs running 32-bit operating systems. ## ## Keep tls_cipher_suite empty if you have issues fetching sources or ## connecting to some DoH servers. Google and Cloudflare are fine with it. # tls_cipher_suite = [52392, 49199] ## Fallback resolvers ## These are normal, non-encrypted DNS resolvers, that will be only used ## for one-shot queries when retrieving the initial resolvers list, and ## only if the system DNS configuration doesn't work. ## No user application queries will ever be leaked through these resolvers, ## and they will not be used after IP addresses of resolvers URLs have been found. ## They will never be used if lists have already been cached, and if stamps ## don't include host names without IP addresses. ## They will not be used if the configured system DNS works. ## Resolvers supporting DNSSEC are recommended. ## ## People in China may need to use 114.114.114.114:53 here. ## Other popular options include 8.8.8.8 and 1.1.1.1. ## ## If more than one resolver is specified, they will be tried in sequence. fallback_resolvers = ['91.239.100.100:53'] ## Always use the fallback resolver before the system DNS settings. ignore_system_dns = true ## Maximum time (in seconds) to wait for network connectivity before ## initializing the proxy. ## Useful if the proxy is automatically started at boot, and network ## connectivity is not guaranteed to be immediately available. ## Use 0 to not test for connectivity at all (not recommended), ## and -1 to wait as much as possible. netprobe_timeout = -1 ## Address and port to try initializing a connection to, just to check ## if the network is up. It can be any address and any port, even if ## there is nothing answering these on the other side. Just don't use ## a local address, as the goal is to check for Internet connectivity. ## On Windows, a datagram with a single, nul byte will be sent, only ## when the system starts. ## On other operating systems, the connection will be initialized ## but nothing will be sent at all. netprobe_address = '91.239.100.100:53' ## Offline mode - Do not use any remote encrypted servers. ## The proxy will remain fully functional to respond to queries that ## plugins can handle directly (forwarding, cloaking, ...) # offline_mode = false ## Additional data to attach to outgoing queries. ## These strings will be added as TXT records to queries. ## Do not use, except on servers explicitly asking for extra data ## to be present. ## encrypted-dns-server can be configured to use this for access control ## in the [access_control] section # query_meta = ['key1:value1', 'key2:value2', 'token:MySecretToken'] ## Automatic log files rotation # Maximum log files size in MB - Set to 0 for unlimited. log_files_max_size = 10 # How long to keep backup files, in days log_files_max_age = 7 # Maximum log files backups to keep (or 0 to keep all backups) log_files_max_backups = 1 ######################### # Filters # ######################### ## Note: if you are using dnsmasq, disable the `dnssec` option in dnsmasq if you ## configure dnscrypt-proxy to do any kind of filtering (including the filters ## below and blocklists). ## You can still choose resolvers that do DNSSEC validation. ## Immediately respond to IPv6-related queries with an empty response ## This makes things faster when there is no IPv6 connectivity, but can ## also cause reliability issues with some stub resolvers. block_ipv6 = true ## Immediately respond to A and AAAA queries for host names without a domain name block_unqualified = true ## Immediately respond to queries for local zones instead of leaking them to ## upstream resolvers (always causing errors or timeouts). block_undelegated = true ## TTL for synthetic responses sent when a request has been blocked (due to ## IPv6 or blocklists). reject_ttl = 600 ################################################################################## # Route queries for specific domains to a dedicated set of servers # ################################################################################## ## See the `example-forwarding-rules.txt` file for an example # forwarding_rules = 'forwarding-rules.txt' ############################### # Cloaking rules # ############################### ## Cloaking returns a predefined address for a specific name. ## In addition to acting as a HOSTS file, it can also return the IP address ## of a different name. It will also do CNAME flattening. ## ## See the `example-cloaking-rules.txt` file for an example # cloaking_rules = 'cloaking-rules.txt' ## TTL used when serving entries in cloaking-rules.txt # cloak_ttl = 600 ########################### # DNS cache # ########################### ## Enable a DNS cache to reduce latency and outgoing traffic cache = true ## Cache size cache_size = 4096 ## Minimum TTL for cached entries cache_min_ttl = 2400 ## Maximum TTL for cached entries cache_max_ttl = 86400 ## Minimum TTL for negatively cached entries cache_neg_min_ttl = 60 ## Maximum TTL for negatively cached entries cache_neg_max_ttl = 600 ################################## # Local DoH server # ################################## [local_doh] ## dnscrypt-proxy can act as a local DoH server. By doing so, web browsers ## requiring a direct connection to a DoH server in order to enable some ## features will enable these, without bypassing your DNS proxy. ## Addresses that the local DoH server should listen to # listen_addresses = ['127.0.0.1:3000'] ## Path of the DoH URL. This is not a file, but the part after the hostname ## in the URL. By convention, `/dns-query` is frequently chosen. ## For each `listen_address` the complete URL to access the server will be: ## `https://` (ex: `https://127.0.0.1/dns-query`) # path = '/dns-query' ## Certificate file and key - Note that the certificate has to be trusted. ## See the documentation (wiki) for more information. # cert_file = 'localhost.pem' # cert_key_file = 'localhost.pem' ############################### # Query logging # ############################### ## Log client queries to a file [query_log] ## Path to the query log file (absolute, or relative to the same directory as the config file) ## Can be set to /dev/stdout in order to log to the standard output. # file = 'query.log' ## Query log format (currently supported: tsv and ltsv) format = 'tsv' ## Do not log these query types, to reduce verbosity. Keep empty to log everything. # ignored_qtypes = ['DNSKEY', 'NS'] ############################################ # Suspicious queries logging # ############################################ ## Log queries for nonexistent zones ## These queries can reveal the presence of malware, broken/obsolete applications, ## and devices signaling their presence to 3rd parties. [nx_log] ## Path to the query log file (absolute, or relative to the same directory as the config file) # file = 'nx.log' ## Query log format (currently supported: tsv and ltsv) format = 'tsv' ###################################################### # Pattern-based blocking (blocklists) # ###################################################### ## Blocklists are made of one pattern per line. Example of valid patterns: ## ## example.com ## =example.com ## *sex* ## ads.* ## ads*.example.* ## ads*.example[0-9]*.com ## ## Example blocklist files can be found at https://download.dnscrypt.info/blocklists/ ## A script to build blocklists from public feeds can be found in the ## `utils/generate-domains-blocklists` directory of the dnscrypt-proxy source code. [blocked_names] ## Path to the file of blocking rules (absolute, or relative to the same directory as the config file) blocked_names_file = 'blocked-name.txt' ## Optional path to a file logging blocked queries # log_file = 'blocked-names.log' ## Optional log format: tsv or ltsv (default: tsv) # log_format = 'tsv' ########################################################### # Pattern-based IP blocking (IP blocklists) # ########################################################### ## IP blocklists are made of one pattern per line. Example of valid patterns: ## ## 127.* ## fe80:abcd:* ## 192.168.1.4 [blocked_ips] ## Path to the file of blocking rules (absolute, or relative to the same directory as the config file) # blocked_ips_file = 'blocked-ips.txt' ## Optional path to a file logging blocked queries # log_file = 'blocked-ips.log' ## Optional log format: tsv or ltsv (default: tsv) # log_format = 'tsv' ###################################################### # Pattern-based allow lists (blocklists bypass) # ###################################################### ## Allowlists support the same patterns as blocklists ## If a name matches an allowlist entry, the corresponding session ## will bypass names and IP filters. ## ## Time-based rules are also supported to make some websites only accessible at specific times of the day. [allowed_names] ## Path to the file of allow list rules (absolute, or relative to the same directory as the config file) allowed_names_file = 'allowed-names.txt' ## Optional path to a file logging allowed queries # log_file = 'allowed_names.log' ## Optional log format: tsv or ltsv (default: tsv) # log_format = 'tsv' ########################################## # Time access restrictions # ########################################## ## One or more weekly schedules can be defined here. ## Patterns in the name-based blocked_names file can optionally be followed with @schedule_name ## to apply the pattern 'schedule_name' only when it matches a time range of that schedule. ## ## For example, the following rule in a blocklist file: ## *.youtube.* @time-to-sleep ## would block access to YouTube during the times defined by the 'time-to-sleep' schedule. ## ## {after='21:00', before= '7:00'} matches 0:00-7:00 and 21:00-0:00 ## {after= '9:00', before='18:00'} matches 9:00-18:00 [schedules] # [schedules.'time-to-sleep'] # mon = [{after='21:00', before='7:00'}] # tue = [{after='21:00', before='7:00'}] # wed = [{after='21:00', before='7:00'}] # thu = [{after='21:00', before='7:00'}] # fri = [{after='23:00', before='7:00'}] # sat = [{after='23:00', before='7:00'}] # sun = [{after='21:00', before='7:00'}] # [schedules.'work'] # mon = [{after='9:00', before='18:00'}] # tue = [{after='9:00', before='18:00'}] # wed = [{after='9:00', before='18:00'}] # thu = [{after='9:00', before='18:00'}] # fri = [{after='9:00', before='17:00'}] ######################### # Servers # ######################### ## Remote lists of available servers ## Multiple sources can be used simultaneously, but every source ## requires a dedicated cache file. ## ## Refer to the documentation for URLs of public sources. ## ## A prefix can be prepended to server names in order to ## avoid collisions if different sources share the same for ## different servers. In that case, names listed in `server_names` ## must include the prefixes. ## ## If the `urls` property is missing, cache files and valid signatures ## must already be present. This doesn't prevent these cache files from ## expiring after `refresh_delay` hours. [sources] ## An example of a remote source from https://github.com/DNSCrypt/dnscrypt-resolvers [sources.'public-resolvers'] urls = ['https://raw.githubusercontent.com/DNSCrypt/dnscrypt-resolvers/master/v3/public-resolvers.md', 'https://download.dnscrypt.info/resolvers-list/v3/public-resolvers.md'] cache_file = 'public-resolvers.md' minisign_key = 'RWQf6LRCGA9i53mlYecO4IzT51TGPpvWucNSCh1CBM0QTaLn73Y7GFO3' prefix = '' ## Anonymized DNS relays [sources.'relays'] urls = ['https://raw.githubusercontent.com/DNSCrypt/dnscrypt-resolvers/master/v3/relays.md', 'https://download.dnscrypt.info/resolvers-list/v3/relays.md'] cache_file = 'relays.md' minisign_key = 'RWQf6LRCGA9i53mlYecO4IzT51TGPpvWucNSCh1CBM0QTaLn73Y7GFO3' refresh_delay = 72 prefix = '' ## Quad9 over DNSCrypt - https://quad9.net/ # [sources.quad9-resolvers] # urls = ['https://www.quad9.net/quad9-resolvers.md'] # minisign_key = 'RWQBphd2+f6eiAqBsvDZEBXBGHQBJfeG6G+wJPPKxCZMoEQYpmoysKUN' # cache_file = 'quad9-resolvers.md' # prefix = 'quad9-' ## Another example source, with resolvers censoring some websites not appropriate for children ## This is a subset of the `public-resolvers` list, so enabling both is useless # [sources.'parental-control'] # urls = ['https://raw.githubusercontent.com/DNSCrypt/dnscrypt-resolvers/master/v3/parental-control.md', 'https://download.dnscrypt.info/resolvers-list/v3/parental-control.md'] # cache_file = 'parental-control.md' # minisign_key = 'RWQf6LRCGA9i53mlYecO4IzT51TGPpvWucNSCh1CBM0QTaLn73Y7GFO3' ######################################### # Servers with known bugs # ######################################### [broken_implementations] # 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 over UDP and over relays. # # The `dnsdist` server software drops client queries larger than 1500 bytes. # They are aware of it and are working on a fix. # # The list below enables workarounds to make non-relayed usage more reliable # until the servers are fixed. fragments_blocked = ['cisco', 'cisco-ipv6', 'cisco-familyshield', 'cisco-familyshield-ipv6', 'cleanbrowsing-adult', 'cleanbrowsing-family-ipv6', 'cleanbrowsing-family', 'cleanbrowsing-security'] ################################################################# # Certificate-based client authentication for DoH # ################################################################# # Use a X509 certificate to authenticate yourself when connecting to DoH servers. # This is only useful if you are operating your own, private DoH server(s). # 'creds' maps servers to certificates, and supports multiple entries. # If you are not using the standard root CA, an optional "root_ca" # property set to the path to a root CRT file can be added to a server entry. [doh_client_x509_auth] # # creds = [ # { server_name='myserver', client_cert='client.crt', client_key='client.key' } # ] ################################ # Anonymized DNS # ################################ [anonymized_dns] ## Routes are indirect ways to reach DNSCrypt servers. ## ## A route maps a server name ("server_name") to one or more relays that will be ## used to connect to that server. ## ## A relay can be specified as a DNS Stamp (either a relay stamp, or a ## DNSCrypt stamp), an IP:port, a hostname:port, or a server name. ## ## The following example routes "example-server-1" via `anon-example-1` or `anon-example-2`, ## and "example-server-2" via the relay whose relay DNS stamp ## is "sdns://gRIxMzcuNzQuMjIzLjIzNDo0NDM". ## ## !!! THESE ARE JUST EXAMPLES !!! ## ## Review the list of available relays from the "relays.md" file, and, for each ## server you want to use, define the relays you want connections to go through. ## ## Carefully choose relays and servers so that they are run by different entities. ## ## "server_name" can also be set to "*" to define a default route, but this is not ## recommended. If you do so, keep "server_names" short and distinct from relays. routes = [ { server_name='acsacsar-ams-ipv4', via=['anon-meganerd', 'anon-scaleway-ams'] }, { server_name='dnscrypt.eu-dk', via=['anon-scaleway-ams', 'anon-yofiji-se-ipv4'] }, { server_name='dnscrypt.eu-nl', via=['anon-meganerd', 'anon-scaleway-ams'] }, { server_name='dnscrypt.uk-ipv4', via=['anon-kama', 'anon-scaleway'] }, { server_name='meganerd', via=['anon-acsacsar-ams-ipv4', 'anon-scaleway-ams'] }, { server_name='publicarray-au', via=['anon-ibksturm', 'anon-tiarap'] }, { server_name='scaleway-ams', via=['anon-acsacsar-ams-ipv4', 'anon-scaleway-ams'] }, { server_name='scaleway-fr', via=['anon-dnscrypt.uk-ipv4', 'anon-v.dnscrypt.uk-ipv4'] }, { server_name='v.dnscrypt.uk-ipv4', via=['anon-meganerd', 'anon-scaleway'] }, { server_name='yofiji-se-ipv4', via=['anon-meganerd', 'anon-scaleway-ams'] } # { server_name='example-server-2', via=['sdns://gRIxMzcuNzQuMjIzLjIzNDo0NDM'] } ] # skip resolvers incompatible with anonymization instead of using them directly skip_incompatible = true # If public server certificates for a non-conformant server cannot be # retrieved via a relay, try getting them directly. Actual queries # will then always go through relays. direct_cert_fallback = false ############################### # DNS64 # ############################### ## DNS64 is a mechanism for synthesizing AAAA records from A records. ## It is used with an IPv6/IPv4 translator to enable client-server ## communication between an IPv6-only client and an IPv4-only server, ## without requiring any changes to either the IPv6 or the IPv4 node, ## for the class of applications that work through NATs. ## ## There are two options to synthesize such records: ## Option 1: Using a set of static IPv6 prefixes; ## Option 2: By discovering the IPv6 prefix from DNS64-enabled resolver. ## ## If both options are configured - only static prefixes are used. ## (Ref. RFC6147, RFC6052, RFC7050) ## ## Do not enable unless you know what DNS64 is and why you need it, or else ## you won't be able to connect to anything at all. [dns64] ## (Option 1) Static prefix(es) as Pref64::/n CIDRs. # prefix = ['64:ff9b::/96'] ## (Option 2) DNS64-enabled resolver(s) to discover Pref64::/n CIDRs. ## These resolvers are used to query for Well-Known IPv4-only Name (WKN) "ipv4only.arpa." to discover only. ## Set with your ISP's resolvers in case of custom prefixes (other than Well-Known Prefix 64:ff9b::/96). ## IMPORTANT: Default resolvers listed below support Well-Known Prefix 64:ff9b::/96 only. # resolver = ['[2606:4700:4700::64]:53', '[2001:4860:4860::64]:53'] ######################################## # Static entries # ######################################## ## Optional, local, static list of additional servers ## Mostly useful for testing your own servers. [static] # [static.'myserver'] # stamp = 'sdns:AQcAAAAAAAAAAAAQMi5kbnNjcnlwdC1jZXJ0Lg'