Turnserver configuration file
/usr/local/etc/turnserver.conf
This is the TurnServer configuration file.
Here are the configuration options supported.
The file contains the following definitions:
listen_address = { IPv4 address, ... }
The public IPv4 address of any relayed address (if not set, no relay for IPv4). You can set more than one address, example:
listen_address = { "172.16.2.1", "173.17.2.1" }
The main advantage to have multiple public IPv4 addresses is to do load sharing.
listen_addressv6 = { IPv6 address, ...}
The public IPv6 address of any relayed address (if not set, no relay for IPv6). You can set more than one address, example:
listen_addressv6 = { "2001:db8:1::1", "2001:db8:2::1" }
The main advantage to have multiple public IPv6 addresses is to do load sharing.
udp_port = number
The UDP port of the server to listen for incoming connections.
tcp_port = number
The TCP port of the server to listen for incoming connections.
tls_port = number
The TLS port of the server to listen for incoming connections.
tls = boolean
Enable or not TLS over TCP connections.
dtls = boolean
Enable or not TLS over UDP connections. It is an experimental feature of TurnServer and it is not defined by TURN standard.
max_port = number
Maximum allocation port number.
min_port = number
Minimum allocation port number.
turn_tcp = boolean
Enable or not TURN-TCP extension. This extension is documented in RFC6062.
tcp_buffer_userspace = boolean
Enable or not userspace buffering for TURN-TCP extension. If false server will use OS buffering.
tcp_buffer_size = number
TURN-TCP internal buffer size. It is used to bufferize data coming from TCP peer when client does not have sent ConnectionBind.
daemon = boolean
Run the program as daemon.
unpriv_user = string
If the program is run as root or setuid root, the program will drop its privileges to the unpriv_user privileges.
To use this feature, create a special user with the adduser command: adduser --system --group turnserver
realm = string
Realm value (i.e. domain.org).
nonce_key = string
Key used to hash nonce.
max_relay_per_username = number
Maximum number of allocation per username.
allocation_lifetime = number
Lifetime of an allocation in second.
bandwidth_per_allocation = number
Bandwidth limit for an allocation in KBytes/s. 0 value means disable bandwidth quota.
restricted_bandwidth = number
Bandwidth limit for restricted userse in KBytes/s. 0 value means disable bandwidth limitation.
denied_address {
address = IPv4 | IPv6 address
mask = bitmask number
port = number (1 - 65535)
}
Defines an entry for the denied access list. This can appear multiple time. Format is defined as follow:
address is a string representing an IPv4 or IPv6 address.
mask is a number representing the bitmask (i.e. 24 is similar as 255.255.255.0, ...).
port is a number representing the network port. The 0 value means all ports.
It is strongly recommended to restrict addresses 127.0.0.1 and ::1 if there are private services running on the TURN server.
ca_file = string
The pathname of the Certification Authority certificate (required when tls=true).
cert_file = string
The pathname of the server certificate (required when tls=true).
private_key_file = string
The pathname of the server private key (required when tls=true).
account_method = [file | db | ldap ...]
The method to retrieve account data. Note that only the "file" method is implemented.
account_file = string
The pathname of the account file (required when account_method=file).
mod_tmpuser = boolean
Enable or not mod_tmpuser which consist of a socket that listen on localhost and external program can create or delete temporary user.
listen_address = { "172.16.0.1" }
listen_addressv6 = { "2001:db8::1" }
udp_port = 3478
tcp_port = 3478
tls_port = 5349
tls = true
dtls = false
max_port = 65535
min_port = 49152
turn_tcp = false
tcp_buffer_userspace = true
tcp_buffer_size = 32768
daemon = false
unpriv_user = turnserver
realm = "domain.org"
nonce_key = "hieKedq"
max_relay_per_username = 10
allocation_lifetime = 1800
bandwidth_per_allocation = 150
restricted_bandwidth = 10
denied_address {
address = "172.1.0.3" mask = 24 port = 0
}
denied_address {
address = "127.0.0.1" mask = 8 port = 0
}
denied_address {
address = "::1" mask = 128 port = 0
}
ca_file = "/etc/ca.crt"
cert_file = "/etc/server.crt"
private_key_file = "/etc/server.key"
account_method = "file"
account_file = "/etc/turnusers.txt
Sebastien Vincent <[email protected]>