diff --git a/roles/coturn/templates/turnserver.conf.j2 b/roles/coturn/templates/turnserver.conf.j2 index 22cd943..25c68b0 100644 --- a/roles/coturn/templates/turnserver.conf.j2 +++ b/roles/coturn/templates/turnserver.conf.j2 @@ -1,52 +1,60 @@ # Coturn TURN SERVER configuration file # -# Boolean values note: where boolean value is supposed to be used, -# you can use '0', 'off', 'no', 'false', 'f' as 'false, -# and you can use '1', 'on', 'yes', 'true', 't' as 'true' -# If the value is missed, then it means 'true'. +# Boolean values note: where a boolean value is supposed to be used, +# you can use '0', 'off', 'no', 'false', or 'f' as 'false, +# and you can use '1', 'on', 'yes', 'true', or 't' as 'true' +# If the value is missing, then it means 'true' by default. # # Listener interface device (optional, Linux only). -# NOT RECOMMENDED. +# NOT RECOMMENDED. # #listening-device=eth0 # TURN listener port for UDP and TCP (Default: 3478). -# Note: actually, TLS & DTLS sessions can connect to the +# Note: actually, TLS & DTLS sessions can connect to the # "plain" TCP & UDP port(s), too - if allowed by configuration. # #listening-port=3478 # TURN listener port for TLS (Default: 5349). # Note: actually, "plain" TCP & UDP sessions can connect to the TLS & DTLS -# port(s), too - if allowed by configuration. The TURN server +# port(s), too - if allowed by configuration. The TURN server # "automatically" recognizes the type of traffic. Actually, two listening # endpoints (the "plain" one and the "tls" one) are equivalent in terms of -# functionality; but we keep both endpoints to satisfy the RFC 5766 specs. -# For secure TCP connections, we currently support SSL version 3 and +# functionality; but Coturn keeps both endpoints to satisfy the RFC 5766 specs. +# For secure TCP connections, Coturn currently supports # TLS version 1.0, 1.1 and 1.2. -# For secure UDP connections, we support DTLS version 1. +# For secure UDP connections, Coturn supports DTLS version 1. # #tls-listening-port=5349 # Alternative listening port for UDP and TCP listeners; -# default (or zero) value means "listening port plus one". +# default (or zero) value means "listening port plus one". # This is needed for RFC 5780 support -# (STUN extension specs, NAT behavior discovery). The TURN Server -# supports RFC 5780 only if it is started with more than one +# (STUN extension specs, NAT behavior discovery). The TURN Server +# supports RFC 5780 only if it is started with more than one # listening IP address of the same family (IPv4 or IPv6). # RFC 5780 is supported only by UDP protocol, other protocols # are listening to that endpoint only for "symmetry". # #alt-listening-port=0 - + # Alternative listening port for TLS and DTLS protocols. # Default (or zero) value means "TLS listening port plus one". # #alt-tls-listening-port=0 - + +# Some network setups will require using a TCP reverse proxy in front +# of the STUN server. If the proxy port option is set a single listener +# is started on the given port that accepts connections using the +# haproxy proxy protocol v2. +# (https://www.haproxy.org/download/1.8/doc/proxy-protocol.txt) +# +#tcp-proxy-port=5555 + # Listener IP address of relay server. Multiple listeners can be specified. -# If no IP(s) specified in the config file or in the command line options, +# If no IP(s) specified in the config file or in the command line options, # then all IPv4 and IPv6 system IPs will be used for listening. # #listening-ip=172.17.19.101 @@ -61,7 +69,7 @@ # they do not support STUN RFC 5780 functionality (CHANGE REQUEST). # # 2) Auxiliary servers also are never returning ALTERNATIVE-SERVER reply. -# +# # Valid formats are 1.2.3.4:5555 for IPv4 and [1:2::3:4]:5555 for IPv6. # # There may be multiple aux-server options, each will be used for listening @@ -73,7 +81,7 @@ # (recommended for older Linuxes only) # Automatically balance UDP traffic over auxiliary servers (if configured). # The load balancing is using the ALTERNATE-SERVER mechanism. -# The TURN client must support 300 ALTERNATE-SERVER response for this +# The TURN client must support 300 ALTERNATE-SERVER response for this # functionality. # #udp-self-balance @@ -83,13 +91,13 @@ # #relay-device=eth1 -# Relay address (the local IP address that will be used to relay the +# Relay address (the local IP address that will be used to relay the # packets to the peer). # Multiple relay addresses may be used. # The same IP(s) can be used as both listening IP(s) and relay IP(s). # # If no relay IP(s) specified, then the turnserver will apply the default -# policy: it will decide itself which relay addresses to be used, and it +# policy: it will decide itself which relay addresses to be used, and it # will always be using the client socket IP address as the relay IP address # of the TURN session (if the requested relay address family is the same # as the family of the client socket). @@ -112,7 +120,7 @@ # that option must be used several times, each entry must # have form "-X ", to map all involved addresses. # RFC5780 NAT discovery STUN functionality will work correctly, -# if the addresses are mapped properly, even when the TURN server itself +# if the addresses are mapped properly, even when the TURN server itself # is behind A NAT. # # By default, this value is empty, and no address mapping is used. @@ -127,18 +135,18 @@ # Number of the relay threads to handle the established connections # (in addition to authentication thread and the listener thread). -# If explicitly set to 0 then application runs relay process in a -# single thread, in the same thread with the listener process +# If explicitly set to 0 then application runs relay process in a +# single thread, in the same thread with the listener process # (the authentication thread will still be a separate thread). # -# If this parameter is not set, then the default OS-dependent +# If this parameter is not set, then the default OS-dependent # thread pattern algorithm will be employed. Usually the default -# algorithm is the most optimal, so you have to change this option -# only if you want to make some fine tweaks. +# algorithm is optimal, so you have to change this option +# if you want to make some fine tweaks. # # In the older systems (Linux kernel before 3.9), # the number of UDP threads is always one thread per network listening -# endpoint - including the auxiliary endpoints - unless 0 (zero) or +# endpoint - including the auxiliary endpoints - unless 0 (zero) or # 1 (one) value is set. # #relay-threads=0 @@ -148,15 +156,15 @@ # #min-port=49152 #max-port=65535 - + # Uncomment to run TURN server in 'normal' 'moderate' verbose mode. # By default the verbose mode is off. #verbose - + # Uncomment to run TURN server in 'extra' verbose mode. # This mode is very annoying and produces lots of output. -# Not recommended under any normal circumstances. -# +# Not recommended under normal circumstances. +# #Verbose # Uncomment to use fingerprints in the TURN messages. @@ -169,58 +177,69 @@ fingerprint # #lt-cred-mech -# This option is opposite to lt-cred-mech. +# This option is the opposite of lt-cred-mech. # (TURN Server with no-auth option allows anonymous access). # If neither option is defined, and no users are defined, -# then no-auth is default. If at least one user is defined, -# in this file or in command line or in usersdb file, then +# then no-auth is default. If at least one user is defined, +# in this file, in command line or in usersdb file, then # lt-cred-mech is default. # #no-auth +# Enable prometheus exporter +# If enabled the turnserver will expose an endpoint with stats on a prometheus format +# this endpoint is listening on a different port to not conflict with other configurations. +# +# You can simply run the turnserver and access the port 9641 and path /metrics +# +# For mor info on the prometheus exporter and metrics +# https://prometheus.io/docs/introduction/overview/ +# https://prometheus.io/docs/concepts/data_model/ +# +#prometheus + # TURN REST API flag. # (Time Limited Long Term Credential) # Flag that sets a special authorization option that is based upon authentication secret. # # This feature's purpose is to support "TURN Server REST API", see -# "TURN REST API" link in the project's page +# "TURN REST API" link in the project's page # https://github.com/coturn/coturn/ # # This option is used with timestamp: -# +# # usercombo -> "timestamp:userid" # turn user -> usercombo # turn password -> base64(hmac(secret key, usercombo)) # # This allows TURN credentials to be accounted for a specific user id. -# If you don't have a suitable id, the timestamp alone can be used. -# This option is just turning on secret-based authentication. -# The actual value of the secret is defined either by option static-auth-secret, +# If you don't have a suitable id, then the timestamp alone can be used. +# This option is enabled by turning on secret-based authentication. +# The actual value of the secret is defined either by the option static-auth-secret, # or can be found in the turn_secret table in the database (see below). -# +# # Read more about it: # - https://tools.ietf.org/html/draft-uberti-behave-turn-rest-00 # - https://www.ietf.org/proceedings/87/slides/slides-87-behave-10.pdf # -# Be aware that use-auth-secret overrides some part of lt-cred-mech. -# Notice that this feature depends internally on lt-cred-mech, so if you set -# use-auth-secret then it enables internally automatically lt-cred-mech option -# like if you enable both. +# Be aware that use-auth-secret overrides some parts of lt-cred-mech. +# The use-auth-secret feature depends internally on lt-cred-mech, so if you set +# this option then it automatically enables lt-cred-mech internally +# as if you had enabled both. # -# You can use only one of the to auth mechanisms in the same time because, -# both mechanism use the username and password validation in different way. +# Note that you can use only one auth mechanism at the same time! This is because, +# both mechanisms conduct username and password validation in different ways. # -# This way be aware that you can't use both auth mechnaism in the same time! -# Use in config either the lt-cred-mech or the use-auth-secret +# Use either lt-cred-mech or use-auth-secret in the conf # to avoid any confusion. # use-auth-secret -# 'Static' authentication secret value (a string) for TURN REST API only. +# 'Static' authentication secret value (a string) for TURN REST API only. # If not set, then the turn server -# will try to use the 'dynamic' value in turn_secret table -# in user database (if present). The database-stored value can be changed on-the-fly -# by a separate program, so this is why that other mode is 'dynamic'. +# will try to use the 'dynamic' value in the turn_secret table +# in the user database (if present). The database-stored value can be changed on-the-fly +# by a separate program, so this is why that mode is considered 'dynamic'. # static-auth-secret={{ coturn_secret }} @@ -234,10 +253,10 @@ static-auth-secret={{ coturn_secret }} # #oauth -# 'Static' user accounts for long term credentials mechanism, only. +# 'Static' user accounts for the long term credentials mechanism, only. # This option cannot be used with TURN REST API. -# 'Static' user accounts are NOT dynamically checked by the turnserver process, -# so that they can NOT be changed while the turnserver is running. +# 'Static' user accounts are NOT dynamically checked by the turnserver process, +# so they can NOT be changed while the turnserver is running. # #user=username1:key1 #user=username2:key2 @@ -255,7 +274,7 @@ static-auth-secret={{ coturn_secret }} # password. If it has 0x then it is a key, otherwise it is a password). # # The corresponding user account entry in the config file will be: -# +# #user=ninefingers:0xbc807ee29df3c9ffa736523fb2c4e8ee # Or, equivalently, with open clear password (less secure): #user=ninefingers:youhavetoberealistic @@ -263,83 +282,83 @@ static-auth-secret={{ coturn_secret }} # SQLite database file name. # -# Default file name is /var/db/turndb or /usr/local/var/db/turndb or +# The default file name is /var/db/turndb or /usr/local/var/db/turndb or # /var/lib/turn/turndb. -# +# #userdb=/var/db/turndb -# PostgreSQL database connection string in the case that we are using PostgreSQL +# PostgreSQL database connection string in the case that you are using PostgreSQL # as the user database. -# This database can be used for long-term credential mechanism -# and it can store the secret value for secret-based timed authentication in TURN RESP API. +# This database can be used for the long-term credential mechanism +# and it can store the secret value for secret-based timed authentication in TURN REST API. # See http://www.postgresql.org/docs/8.4/static/libpq-connect.html for 8.x PostgreSQL -# versions connection string format, see +# versions connection string format, see # http://www.postgresql.org/docs/9.2/static/libpq-connect.html#LIBPQ-CONNSTRING # for 9.x and newer connection string formats. # #psql-userdb="host= dbname= user= password= connect_timeout=30" -# MySQL database connection string in the case that we are using MySQL +# MySQL database connection string in the case that you are using MySQL # as the user database. -# This database can be used for long-term credential mechanism -# and it can store the secret value for secret-based timed authentication in TURN RESP API. +# This database can be used for the long-term credential mechanism +# and it can store the secret value for secret-based timed authentication in TURN REST API. # -# Optional connection string parameters for the secure communications (SSL): -# ca, capath, cert, key, cipher -# (see http://dev.mysql.com/doc/refman/5.1/en/ssl-options.html for the +# Optional connection string parameters for the secure communications (SSL): +# ca, capath, cert, key, cipher +# (see http://dev.mysql.com/doc/refman/5.1/en/ssl-options.html for the # command options description). # -# Use string format as below (space separated parameters, all optional): +# Use the string format below (space separated parameters, all optional): # #mysql-userdb="host= dbname= user= password= port= connect_timeout= read_timeout=" -# If you want to use in the MySQL connection string the password in encrypted format, -# then set in this option the MySQL password encryption secret key file. +# If you want to use an encrypted password in the MySQL connection string, +# then set the MySQL password encryption secret key file with this option. # -# Warning: If this option is set, then mysql password must be set in "mysql-userdb" in encrypted format! -# If you want to use cleartext password then do not set this option! +# Warning: If this option is set, then the mysql password must be set in "mysql-userdb" in an encrypted format! +# If you want to use a cleartext password then do not set this option! # -# This is the file path which contain secret key of aes encryption while using password encryption. +# This is the file path for the aes encrypted secret key used for password encryption. # #secret-key-file=/path/ -# MongoDB database connection string in the case that we are using MongoDB +# MongoDB database connection string in the case that you are using MongoDB # as the user database. # This database can be used for long-term credential mechanism -# and it can store the secret value for secret-based timed authentication in TURN RESP API. -# Use string format is described at http://hergert.me/docs/mongo-c-driver/mongoc_uri.html +# and it can store the secret value for secret-based timed authentication in TURN REST API. +# Use the string format described at http://hergert.me/docs/mongo-c-driver/mongoc_uri.html # #mongo-userdb="mongodb://[username:password@]host1[:port1][,host2[:port2],...[,hostN[:portN]]][/[database][?options]]" -# Redis database connection string in the case that we are using Redis +# Redis database connection string in the case that you are using Redis # as the user database. # This database can be used for long-term credential mechanism -# and it can store the secret value for secret-based timed authentication in TURN RESP API. -# Use string format as below (space separated parameters, all optional): +# and it can store the secret value for secret-based timed authentication in TURN REST API. +# Use the string format below (space separated parameters, all optional): # #redis-userdb="ip= dbname= password= port= connect_timeout=" # Redis status and statistics database connection string, if used (default - empty, no Redis stats DB used). # This database keeps allocations status information, and it can be also used for publishing # and delivering traffic and allocation event notifications. -# The connection string has the same parameters as redis-userdb connection string. -# Use string format as below (space separated parameters, all optional): +# The connection string has the same parameters as redis-userdb connection string. +# Use the string format below (space separated parameters, all optional): # #redis-statsdb="ip= dbname= password= port= connect_timeout=" -# The default realm to be used for the users when no explicit -# origin/realm relationship was found in the database, or if the TURN +# The default realm to be used for the users when no explicit +# origin/realm relationship is found in the database, or if the TURN # server is not using any database (just the commands-line settings -# and the userdb file). Must be used with long-term credentials +# and the userdb file). Must be used with long-term credentials # mechanism or with TURN REST API. # -# Note: If default realm is not specified at all, then realm falls back to the host domain name. -# If domain name is empty string, or '(None)', then it is initialized to am empty string. +# Note: If the default realm is not specified, then realm falls back to the host domain name. +# If the domain name string is empty, or set to '(None)', then it is initialized as an empty string. # realm={{ coturn_realm }} -# The flag that sets the origin consistency -# check: across the session, all requests must have the same +# This flag sets the origin consistency +# check. Across the session, all requests must have the same # main ORIGIN attribute value (if the ORIGIN was # initially used by the session). # @@ -359,7 +378,7 @@ realm={{ coturn_realm }} # Max bytes-per-second bandwidth a TURN session is allowed to handle # (input and output network streams are treated separately). Anything above -# that limit will be dropped or temporary suppressed (within +# that limit will be dropped or temporarily suppressed (within # the available buffer limits). # This option can also be set through the database, for a particular realm. # @@ -403,11 +422,11 @@ no-dtls #no-tcp-relay # Uncomment if extra security is desired, -# with nonce value having limited lifetime. -# By default, the nonce value is unique for a session, -# and has unlimited lifetime. -# Set this option to limit the nonce lifetime. -# It defaults to 600 secs (10 min) if no value is provided. After that delay, +# with nonce value having a limited lifetime. +# The nonce value is unique for a session. +# Set this option to limit the nonce lifetime. +# Set it to 0 for unlimited lifetime. +# It defaults to 600 secs (10 min) if no value is provided. After that delay, # the client will get 438 error and will have to re-authenticate itself. # #stale-nonce=600 @@ -433,13 +452,14 @@ no-dtls #permission-lifetime=300 # Certificate file. -# Use an absolute path or path relative to the +# Use an absolute path or path relative to the # configuration file. +# Use PEM file format. # #cert=/usr/local/etc/turn_server_cert.pem # Private key file. -# Use an absolute path or path relative to the +# Use an absolute path or path relative to the # configuration file. # Use PEM file format. # @@ -455,29 +475,29 @@ no-dtls # #cipher-list="DEFAULT" -# CA file in OpenSSL format. +# CA file in OpenSSL format. # Forces TURN server to verify the client SSL certificates. -# By default it is not set: there is no default value and the client +# By default this is not set: there is no default value and the client # certificate is not checked. # # Example: #CA-file=/etc/ssh/id_rsa.cert -# Curve name for EC ciphers, if supported by OpenSSL -# library (TLS and DTLS). The default value is prime256v1, +# Curve name for EC ciphers, if supported by OpenSSL +# library (TLS and DTLS). The default value is prime256v1, # if pre-OpenSSL 1.0.2 is used. With OpenSSL 1.0.2+, # an optimal curve will be automatically calculated, if not defined # by this option. # #ec-curve-name=prime256v1 -# Use 566 bits predefined DH TLS key. Default size of the key is 1066. +# Use 566 bits predefined DH TLS key. Default size of the key is 2066. # #dh566 -# Use 2066 bits predefined DH TLS key. Default size of the key is 1066. +# Use 1066 bits predefined DH TLS key. Default size of the key is 2066. # -#dh2066 +#dh1066 # Use custom DH TLS key, stored in PEM format in the file. # Flags --dh566 and --dh2066 are ignored when the DH key is taken from a file. @@ -485,21 +505,21 @@ no-dtls #dh-file= # Flag to prevent stdout log messages. -# By default, all log messages are going to both stdout and to -# the configured log file. With this option everything will be -# going to the configured log only (unless the log file itself is stdout). +# By default, all log messages go to both stdout and to +# the configured log file. With this option everything will +# go to the configured log only (unless the log file itself is stdout). # #no-stdout-log # Option to set the log file name. -# By default, the turnserver tries to open a log file in -# /var/log, /var/tmp, /tmp and current directories directories -# (which open operation succeeds first that file will be used). +# By default, the turnserver tries to open a log file in +# /var/log, /var/tmp, /tmp and the current directory +# (Whichever file open operation succeeds first will be used). # With this option you can set the definite log file name. -# The special names are "stdout" and "-" - they will force everything +# The special names are "stdout" and "-" - they will force everything # to the stdout. Also, the "syslog" name will force everything to -# the system log (syslog). -# In the runtime, the logfile can be reset with the SIGHUP signal +# the system log (syslog). +# In the runtime, the logfile can be reset with the SIGHUP signal # to the turnserver process. # #log-file=/var/tmp/turn.log @@ -514,41 +534,51 @@ syslog # #simple-log +# Enable full ISO-8601 timestamp in all logs. +#new-log-timestamp + +# Set timestamp format (in strftime(1) format) +#new-log-timestamp-format "%FT%T%z" + +# Disabled by default binding logging in verbose log mode to avoid DoS attacks. +# Enable binding logging and UDP endpoint logs in verbose log mode. +#log-binding + # Option to set the "redirection" mode. The value of this option -# will be the address of the alternate server for UDP & TCP service in form of +# will be the address of the alternate server for UDP & TCP service in the form of # [:]. The server will send this value in the attribute # ALTERNATE-SERVER, with error 300, on ALLOCATE request, to the client. # Client will receive only values with the same address family -# as the client network endpoint address family. -# See RFC 5389 and RFC 5766 for ALTERNATE-SERVER functionality description. +# as the client network endpoint address family. +# See RFC 5389 and RFC 5766 for the description of ALTERNATE-SERVER functionality. # The client must use the obtained value for subsequent TURN communications. -# If more than one --alternate-server options are provided, then the functionality -# can be more accurately described as "load-balancing" than a mere "redirection". -# If the port number is omitted, then the default port +# If more than one --alternate-server option is provided, then the functionality +# can be more accurately described as "load-balancing" than a mere "redirection". +# If the port number is omitted, then the default port # number 3478 for the UDP/TCP protocols will be used. -# Colon (:) characters in IPv6 addresses may conflict with the syntax of -# the option. To alleviate this conflict, literal IPv6 addresses are enclosed -# in square brackets in such resource identifiers, for example: -# [2001:db8:85a3:8d3:1319:8a2e:370:7348]:3478 . +# Colon (:) characters in IPv6 addresses may conflict with the syntax of +# the option. To alleviate this conflict, literal IPv6 addresses are enclosed +# in square brackets in such resource identifiers, for example: +# [2001:db8:85a3:8d3:1319:8a2e:370:7348]:3478 . # Multiple alternate servers can be set. They will be used in the -# round-robin manner. All servers in the pool are considered of equal weight and -# the load will be distributed equally. For example, if we have 4 alternate servers, -# then each server will receive 25% of ALLOCATE requests. A alternate TURN server -# address can be used more than one time with the alternate-server option, so this +# round-robin manner. All servers in the pool are considered of equal weight and +# the load will be distributed equally. For example, if you have 4 alternate servers, +# then each server will receive 25% of ALLOCATE requests. A alternate TURN server +# address can be used more than one time with the alternate-server option, so this # can emulate "weighting" of the servers. # -# Examples: +# Examples: #alternate-server=1.2.3.4:5678 #alternate-server=11.22.33.44:56789 #alternate-server=5.6.7.8 #alternate-server=[2001:db8:85a3:8d3:1319:8a2e:370:7348]:3478 - -# Option to set alternative server for TLS & DTLS services in form of -# :. If the port number is omitted, then the default port -# number 5349 for the TLS/DTLS protocols will be used. See the previous + +# Option to set alternative server for TLS & DTLS services in form of +# :. If the port number is omitted, then the default port +# number 5349 for the TLS/DTLS protocols will be used. See the previous # option for the functionality description. # -# Examples: +# Examples: #tls-alternate-server=1.2.3.4:5678 #tls-alternate-server=11.22.33.44:56789 #tls-alternate-server=[2001:db8:85a3:8d3:1319:8a2e:370:7348]:3478 @@ -559,6 +589,15 @@ syslog # #stun-only +# Option to hide software version. Enhance security when used in production. +# Revealing the specific software version of the agent through the +# SOFTWARE attribute might allow them to become more vulnerable to +# attacks against software that is known to contain security holes. +# Implementers SHOULD make usage of the SOFTWARE attribute a +# configurable option (https://tools.ietf.org/html/rfc5389#section-16.1.2) +# +#no-software-attribute + # Option to suppress STUN functionality, only TURN requests will be processed. # Run as TURN server only, all STUN requests will be ignored. # By default, this option is NOT set. @@ -567,7 +606,7 @@ syslog # This is the timestamp/username separator symbol (character) in TURN REST API. # The default value is ':'. -# rest-api-separator=: +# rest-api-separator=: # Flag that can be used to allow peers on the loopback addresses (127.x.x.x and ::1). # This is an extra security measure. @@ -575,9 +614,9 @@ syslog # (To avoid any security issue that allowing loopback access may raise, # the no-loopback-peers option is replaced by allow-loopback-peers.) # -# Allow it only for testing in a development environment! -# In production it adds a possible security vulnerability, so for security reasons -# it is not allowed using it together with empty cli-password. +# Allow it only for testing in a development environment! +# In production it adds a possible security vulnerability, so for security reasons +# it is not allowed using it together with empty cli-password. # #allow-loopback-peers @@ -586,18 +625,18 @@ syslog # no-multicast-peers -# Option to set the max time, in seconds, allowed for full allocation establishment. +# Option to set the max time, in seconds, allowed for full allocation establishment. # Default is 60 seconds. # #max-allocate-timeout=60 -# Option to allow or ban specific ip addresses or ranges of ip addresses. -# If an ip address is specified as both allowed and denied, then the ip address is -# considered to be allowed. This is useful when you wish to ban a range of ip +# Option to allow or ban specific ip addresses or ranges of ip addresses. +# If an ip address is specified as both allowed and denied, then the ip address is +# considered to be allowed. This is useful when you wish to ban a range of ip # addresses, except for a few specific ips within that range. # # This can be used when you do not want users of the turn server to be able to access -# machines reachable by the turn server, but would otherwise be unreachable from the +# machines reachable by the turn server, but would otherwise be unreachable from the # internet (e.g. when the turn server is sitting behind a NAT) # # Examples: @@ -619,22 +658,22 @@ no-multicast-peers # mobility -# Allocate Address Family according -# If enabled then TURN server allocates address family according the TURN +# Allocate Address Family according +# If enabled then TURN server allocates address family according the TURN # Client <=> Server communication address family. -# (By default coTURN works according RFC 6156.) +# (By default Coturn works according RFC 6156.) # !!Warning: Enabling this option breaks RFC6156 section-4.2 (violates use default IPv4)!! # #keep-address-family # User name to run the process. After the initialization, the turnserver process -# will make an attempt to change the current user ID to that user. +# will attempt to change the current user ID to that user. # #proc-user= # Group name to run the process. After the initialization, the turnserver process -# will make an attempt to change the current group ID to that group. +# will attempt to change the current group ID to that group. # #proc-group= @@ -654,8 +693,8 @@ mobility #cli-port=5766 # CLI access password. Default is empty (no password). -# For the security reasons, it is recommended to use the encrypted -# for of the password (see the -P command in the turnadmin utility). +# For the security reasons, it is recommended that you use the encrypted +# form of the password (see the -P command in the turnadmin utility). # # Secure form for password 'qwerty': # @@ -684,10 +723,14 @@ mobility # #web-admin-listen-on-workers -# Server relay. NON-STANDARD AND DANGEROUS OPTION. -# Only for those applications when we want to run +#acme-redirect=http://redirectserver/.well-known/acme-challenge/ +# Redirect ACME, i.e. HTTP GET requests matching '^/.well-known/acme-challenge/(.*)' to '$1'. +# Default is '', i.e. no special handling for such requests. + +# Server relay. NON-STANDARD AND DANGEROUS OPTION. +# Only for those applications when you want to run # server applications on the relay endpoints. -# This option eliminates the IP permissions check on +# This option eliminates the IP permissions check on # the packets incoming to the relay endpoints. # #server-relay