STUN/TURN server connectivity test

Question

I am trying to figure out how to test whether a STUN/TURN server is alive and properly responding to connections. Ideally this test would be performed from an external machine, just in case the STUN/TURN machine is down for this case should also be reported by the connectivity test.

Has anyone looked into this case in the past? What solutions would be recommended?

Answer 1

Edit: A nice implementation in github.io taken from comment to another answer( choose "relay" in IceTransports value):

Test TURN Server

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following Benjamin Trent's advice, I wrote the below code to test TURN server's connectivity, works on both 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);     };   });    } 

example usage:

checkTURNServer({     urls: '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)); 

You can run the below snippet to check:

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>

Answer 2

You can test your servers here...

https://webrtc.github.io/samples/src/content/peerconnection/trickle-ice/