我试图弄清楚如何测试STUN / TURN服务器是否存活并正确响应连接。理想情况下，此测试将在外部机器上执行，以防万一STUN / TURN机器因此情况下降，也应通过连接测试报告。
过去有没有人调查此案？建议使用哪些解决方案？
答案 0 :(得分：30)
编辑： github.io中一个很好的实现，从评论到另一个答案（选择＆＃34; relay＆＃34;在IceTransports值中）：
根据Benjamin Trent的建议，我编写了以下代码来测试TURN服务器的连接，适用于firefox n chrome：
function checkTURNServer(turnConfig, timeout){
return new Promise(function(resolve, reject){
setTimeout(function(){
if(promiseResolved) return;
resolve(false);
promiseResolved = true;
}, timeout || 5000);
var promiseResolved = false
, myPeerConnection = window.RTCPeerConnection || window.mozRTCPeerConnection || window.webkitRTCPeerConnection //compatibility for firefox and chrome
, pc = new myPeerConnection({iceServers:[turnConfig]})
, noop = function(){};
pc.createDataChannel(""); //create a bogus data channel
pc.createOffer(function(sdp){
if(sdp.sdp.indexOf('typ relay') > -1){ // sometimes sdp contains the ice candidates...
promiseResolved = true;
resolve(true);
}
pc.setLocalDescription(sdp, noop, noop);
}, noop); // create offer and set local description
pc.onicecandidate = function(ice){ //listen for candidate events
if(promiseResolved || !ice || !ice.candidate || !ice.candidate.candidate || !(ice.candidate.candidate.indexOf('typ relay')>-1)) return;
promiseResolved = true;
resolve(true);
};
});
}
示例用法：
checkTURNServer({
url: 'turn:127.0.0.1',
username: 'test',
credential: 'test'
}).then(function(bool){
console.log('is TURN server active? ', bool? 'yes':'no');
}).catch(console.error.bind(console));
您可以运行以下代码段进行检查：
var res = id('result');
id('button').onclick = function(){
res.innerHTML = 'Checking TURN Server...';
var url = 'turn:'+id('url').value+':'+id('port').value,
useUDP = id('udp').checked;
url +='?transport=' + (useUDP ? 'udp': 'tcp');
checkTURNServer({
urls: url,
username: id('name').value,
credential: id('pass').value
}, id('time').value).then(function(bool){
if(bool)
res.innerHTML = 'Yep, the TURN server works...';
else
throw new Error('Doesn\'t work');
}).catch(function(e){
console.log(e);
res.innerHTML = 'TURN server does not work.';
});
};
function checkTURNServer(turnConfig, timeout){
console.log('turnConfig: ', turnConfig);
return new Promise(function(resolve, reject){
setTimeout(function(){
if(promiseResolved) return;
resolve(false);
promiseResolved = true;
}, timeout || 5000);
var promiseResolved = false
, myPeerConnection = window.RTCPeerConnection || window.mozRTCPeerConnection || window.webkitRTCPeerConnection //compatibility for firefox and chrome
, pc = new myPeerConnection({iceServers:[turnConfig]})
, noop = function(){};
pc.createDataChannel(""); //create a bogus data channel
pc.createOffer(function(sdp){
if(sdp.sdp.indexOf('typ relay') > -1){ // sometimes sdp contains the ice candidates...
promiseResolved = true;
resolve(true);
}
pc.setLocalDescription(sdp, noop, noop);
}, noop); // create offer and set local description
pc.onicecandidate = function(ice){ //listen for candidate events
if(promiseResolved || !ice || !ice.candidate || !ice.candidate.candidate || !(ice.candidate.candidate.indexOf('typ relay')>-1)) return;
promiseResolved = true;
resolve(true);
};
});
}
function id(val){
return document.getElementById(val);
}#url{
width: 250px;
}
#port{
width: 70px;
}<h1>
Test TURN server
</h1>
<div>
TURN URL: <input id='url' placeholder='example.com or xxx.yyy.rrr.ddd' />
Port: <input type='number' value='3478' id='port' placeholder='enter a port number' />
</div>
<div>
Transport: <input type="radio" name="transport" id="tcp" value="tcp" /> TCP
<input type="radio" name="transport" id="udp" value="udp" checked/>UDP
</div>
<div>
Username: <input id="name" placeholder="turn username" />
</div>
<div>
password: <input id="pass" placeholder="turn password" />
</div>
<div>
checking Timeout: <input type='number' id="time" placeholder="wait time before checking timeout" value=5000 />
</div>
<div>
<button id='button'>
Check TURN Server
</button>
</div>
<h4 id='result'></h4>
答案 1 :(得分：6)
您可以在这里测试服务器......
https://webrtc.github.io/samples/src/content/peerconnection/trickle-ice/
答案 2 :(得分：4)
测试您的TURN和STUN服务器here
答案 3 :(得分：3)
如果您为Coturn服务器使用 username：password 身份验证机制，则较早的答案适用于TURN。但是，就像static-auth-secret中看到的BigBlueButton和其他使用/etc/turnserver.conf的情况一样，不可能使用https://webrtc.github.io/samples/src/content/peerconnection/trickle-ice/。
use-auth-secret
static-auth-secret=XXXX
仍然要测试TURN服务器的一种方法是使用turnutils_uclient或您各自的软件包管理器安装sudo apt install coturn。然后，您可以使用（代替XXXX和turn.example.com）对其进行测试：
turnutils_uclient -T -W XXXX turn.example.com
这将导致以下输出（已编辑的IP地址192.168.0.2作为内部客户端地址，而1.2.3.4作为服务器地址）：
0: IPv4. Connected from: 192.168.0.2:50988
0: IPv4. Connected to: 1.2.3.4:3478
0: allocate sent
0: allocate response received:
0: allocate sent
0: allocate response received:
0: success
0: IPv4. Received relay addr: 1.2.3.4:56365
....
4: Total transmit time is 4
4: Total lost packets 0 (0.000000%), total send dropped 0 (0.000000%)
4: Average round trip delay 32.500000 ms; min = 15 ms, max = 56 ms
4: Average jitter 12.600000 ms; min = 0 ms, max = 41 ms
在您的TURN服务器上，这应该反映在/var/log/coturn.log中。
答案 4 :(得分：0)
您可以设置第三方监控服务（我们使用Monitis）甚至您自己的计算机，每隔一分钟从一个或多个位置 PING 服务器。但是，这只会告诉您服务器是否 可以 ，并且如果TURN / STUN应用程序服务器仍然接受＆amp;响应TURN / STUN数据包。
STUN / TURN的服务器端监控库将成为一个很棒的GitHub项目。
答案 5 :(得分：0)
如果您愿意使用商业工具对100,000个虚拟用户或1百万个虚拟用户之类的转弯服务器进行高负载测试，则可能需要检查Load Multiplier工具（www.loadmultiplier.com）。 here还介绍了如何测试Coturn服务器的特定页面。
请注意，任一负载乘数工具都会模拟一个虚拟信令平面（以在客户端之间交换SDP）。您还可以使用SRTP / DTLS媒体测试STUN，TURN和ICE。
答案 6 :(得分：0)
@mido函数的版本，用于同时检查TURN和STUN服务器（原始拒绝stun服务器）：
function checkTurnOrStun(turnConfig, timeout){
return new Promise(function(resolve, reject){
setTimeout(function(){
if(promiseResolved){
if (promiseResolved == 'STUN') resolve('STUN');
return;
}
resolve(false);
promiseResolved = true;
}, timeout || 5000);
var promiseResolved = false
, myPeerConnection = window.RTCPeerConnection || window.mozRTCPeerConnection || window.webkitRTCPeerConnection //compatibility for firefox and chrome
, pc = new myPeerConnection({iceServers:[turnConfig]})
, noop = function(){};
pc.createDataChannel(""); //create a bogus data channel
pc.createOffer(function(sdp){
if(sdp.sdp.indexOf('typ relay') > -1){ // sometimes sdp contains the ice candidates...
promiseResolved = 'TURN';
resolve(true);
}
pc.setLocalDescription(sdp, noop, noop);
}, noop); // create offer and set local description
pc.onicecandidate = function(ice){ //listen for candidate events
if( !ice || !ice.candidate || !ice.candidate.candidate) return;
if (ice.candidate.candidate.indexOf('typ relay')!=-1) { promiseResolved = 'TURN'; resolve('TURN'); }
else if (!promiseResolved && (ice.candidate.candidate.indexOf('typ host')!=-1 || ice.candidate.candidate.indexOf('typ srflx')!=-1)){
promiseResolved = 'STUN';
if (turnConfig.url.indexOf('turn:')!==0) resolve('STUN');
}
else return;
};
});
}
checkTurnOrStun({"url": "stun:stunserver.org"}).then(function(result){
console.log(
result ? 'YES, Server active as '+result : 'NO, server not active');
}).catch(console.error.bind(console));
checkTurnOrStun({
url: 'turn:numb.viagenie.ca',
credential: 'muazkh',
username: 'webrtc@live.com'
}).then(function(result){
console.log(
result ? 'YES, Server active as '+result : 'NO, server not active');
}).catch(console.error.bind(console));
答案 7 :(得分：0)
npm我惊呆了
const stun = require('stun');
stun.request('stun.l.google.com:19302', (err, res) => {
if (err) {
console.error(err);
} else {
const { address } = res.getXorAddress();
console.log('your ip', address);
}
});
答案 8 :(得分：0)
这里是@mido答案的清理和更新版本，用于检查服务器是否可访问。这对于在线测试失败的专用网络特别有用。
它还将候选人的类型打印到控制台。
功能
const checkTURNServer = (turnConfig, timeout = 5000) => {
return new Promise(async (resolve, reject) => {
const pc = new RTCPeerConnection({iceServers: [turnConfig]});
let promiseResolved = false;
// Stop waiting after X milliseconds and display the result
setTimeout(() => {
if(promiseResolved)
return;
promiseResolved = true;
resolve(false);
}, timeout);
// Create a bogus data channel
pc.createDataChannel('');
// Listen for candidates
pc.onicecandidate = ice => {
if(promiseResolved || ice === null || ice.candidate === null)
return;
console.log(ice.candidate.type);
if(ice.candidate.type === 'relay') {
promiseResolved = true;
resolve(true);
}
};
// Create offer and set local description
const offer = await pc.createOffer();
await pc.setLocalDescription(offer);
});
};
用法
checkTURNServer({
urls: ['turn:' + location.host + ':3478', 'turns:' + location.host + ':5349'],
username: "1604441890:myUser",
credential: "myPassword",
credentialType: 'password'
}).then(
active => console.log('Is the TURN server active?', active ? 'Yes :)' : 'Not yet...keep trying ;)')
).catch(
e => console.error(e)
);
答案 9 :(得分：-1)
如果要不断检查stun服务器，可以使用cron执行此命令：
stunserver=stun1.l.google.com;stunport=19302;listenport=20000;echo -ne "\x00\x01\x00\x00YOGO\x59\x4f\x47\x4fSTACFLOW" | nc -u -p $listenport $stunserver $stunport -w 0;timeout 1 nc -l -u $listenport | head -c 32 | tail -c 4 | hexdump -e '/1 "%u" "."' | grep -o ".*[^.]" && echo yes-no-problem || mail -s "Error in Tun server:$stunserver:$stunport" root@localhost <<< 'Error in Tun server'
用您的电子邮件替换root @ localhost以获取报告。
stunserver = stun1.l.google.com;
stunport = 19302;
listenport = 20000; ＃自由更改此端口（如果不可用）
将其添加到cron并每分钟执行一次。