nixfiles/hosts/dyon/coturn.nix
2021-06-14 16:34:49 +02:00

64 lines
2.2 KiB
Nix

{config, pkgs, lib, ...}: {
# enable coturn
services.coturn = rec {
enable = true;
no-cli = true;
no-tcp-relay = true;
min-port = 49000;
max-port = 50000;
use-auth-secret = true;
static-auth-secret = (builtins.readFile ./turn.secret);
realm = "turn.entr0py.de";
cert = "${config.security.acme.certs.${realm}.directory}/full.pem";
pkey = "${config.security.acme.certs.${realm}.directory}/key.pem";
extraConfig = ''
# for debugging
verbose
# ban private IP ranges
no-multicast-peers
denied-peer-ip=0.0.0.0-0.255.255.255
denied-peer-ip=10.0.0.0-10.255.255.255
denied-peer-ip=100.64.0.0-100.127.255.255
denied-peer-ip=127.0.0.0-127.255.255.255
denied-peer-ip=169.254.0.0-169.254.255.255
denied-peer-ip=172.16.0.0-172.31.255.255
denied-peer-ip=192.0.0.0-192.0.0.255
denied-peer-ip=192.0.2.0-192.0.2.255
denied-peer-ip=192.88.99.0-192.88.99.255
denied-peer-ip=192.168.0.0-192.168.255.255
denied-peer-ip=198.18.0.0-198.19.255.255
denied-peer-ip=198.51.100.0-198.51.100.255
denied-peer-ip=203.0.113.0-203.0.113.255
denied-peer-ip=240.0.0.0-255.255.255.255
denied-peer-ip=::1
denied-peer-ip=64:ff9b::-64:ff9b::ffff:ffff
denied-peer-ip=::ffff:0.0.0.0-::ffff:255.255.255.255
denied-peer-ip=100::-100::ffff:ffff:ffff:ffff
denied-peer-ip=2001::-2001:1ff:ffff:ffff:ffff:ffff:ffff:ffff
denied-peer-ip=2002::-2002:ffff:ffff:ffff:ffff:ffff:ffff:ffff
denied-peer-ip=fc00::-fdff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
denied-peer-ip=fe80::-febf:ffff:ffff:ffff:ffff:ffff:ffff:ffff
'';
};
# open the firewall
networking.firewall = {
interfaces.ens3 = let
range = with config.services.coturn; [ {
from = min-port;
to = max-port;
} ];
in
{
allowedUDPPortRanges = range;
allowedUDPPorts = [ 3478 ];
allowedTCPPortRanges = range;
allowedTCPPorts = [ 3478 ];
};
};
# get a certificate
security.acme.certs.${config.services.coturn.realm} = {
webroot = "/var/www/letsencrypt";
postRun = "systemctl restart coturn.service";
group = "turnserver";
};
}