Why do I need a STUN server? (2024)

Why do I need a STUN server?

The reason to have a STUN server is so that the two peers can send the media to each other. The media streams will not hit your signalling server but instead will go straight to the other party(the definition of a peer-to-peer connection), the exception to this would be the case when a TURN server is used.

(Video) What are STUN and TURN Servers? (WebRTC Tips from WebRTC.ventures)
(WebRTC.ventures)

What is the purpose of STUN server?

The STUN server allows clients to find out their public address, the type of NAT they are behind and the Internet side port associated by the NAT with a particular local port. This information is used to set up UDP communication between the client and the VoIP provider to establish a call.

(Video) Why we use stun and turn server in WebRtc || NAT explained
(Debojeet Jha)

Why do I need a WebRTC server?

For most WebRTC applications to function a server is required for relaying the traffic between peers, since a direct socket is often not possible between the clients (unless they reside on the same local network). The common way to solve this is by using a TURN server.

(Video) Was sind STUN-Server, TURN-Server und ICE? NAT Teil 3
(Roland's Network Lab)

What is a STUN TURN server?

A STUN server allows a computer on the internet to determine its own public-facing IP address. STUN uses UDP, and STUN servers typically listen for UDP requests on port 3478. For a client to use STUN, their network must allow UDP traffic.

(Video) 1 4 ICE STUN and TURN
(WebRTC.ventures)

What does STUN server return?

To build the list of ICE candidates, Alice's browser makes a series of requests to a STUN server. The server returns the public IP address and port pair that originated the request.

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(NCH Software)

Does WhatsApp use STUN?

WhatsApp is a popular messaging and voice over IP (VoIP) service owned by Facebook. The WhatsApp STUN protcol detects messages and notifications.

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(Technology Accelerated)

Does FaceTime use STUN?

Apple's FaceTime is based on standards such as STUN and H. 264, but also includes unique features.

(Video) STUN server demo
(man dulza)

Can I use WebRTC without TURN server?

webrtc peer to peer chat without signaling server

a turn server is never used. since no signaling server is used the negotiation has to be done manually. that means a so called "offer" has to be copied from the initiator to the responder. and the "answer" has to be copied from the responder to the initiator.

(Video) WebRTC signaling - Why it is required ? | STUN & TURN | WebRTC series PART 3 | Engineering Semester
(Engineering Semester)

How do I host a STUN server?

Setup STUN/TURN server using Coturn
  1. Step 1: Firewall rules to Open ports: ...
  2. Step 2: Coturn installation. ...
  3. Step 3: Start the Coturn Daemon at Startup. ...
  4. Step 4: Create a TURN user to Next, edit the main configuration file. ...
  5. Step 5: Restart the Coturn Service. ...
  6. Step 6: Testing Time.
Mar 8, 2020

(Video) Setup STUN and TURN server (coturn) on Ubuntu
(Time and Update)

Can I use Google STUN server?

The Google STUN server is something you can freely use for development purposes, but, as a free service, there is no SLA. If you are deploying a commercial application, you should plan to deploy your own STUN/TURN servers.

(Video) STUN
(Audiopedia)

What is Cisco STUN?

Simple Traversal of UDP through NATs (STUN), is a network protocol allowing a client behind a NAT (Network Address Translator) to find out its public address, the type of NAT it is behind and the internet-side port associated by the NAT with a particular local port.

(Video) How to supply a already created STUN server for webRTC in RTCPeerConnection function
(Problem Solving Point)

What is the role of STUN server in WebRTC?

STUN. Session Traversal Utilities for NAT (STUN) is a protocol to discover your public address and determine any restrictions in your router that would prevent a direct connection with a peer.

Why do I need a STUN server? (2024)

How does STUN ICE TURN work?

TURN is a relay — both clients send data to the TURN server, which forwards it to the other client. STUN is not a relay — the STUN server helps to "make the connection" between the clients (by discovering and exchanging their external host:port pairs), after which they send data to each other directly.

Are STUN servers free?

Free and public Session Traversal Utilities for NAT server

There are various free STUN servers available out there. It is lightweight and carry no real authentication mechanism to it. This makes it simple for developers to connect to freeservers without any technical hurdles. It is not advisable to do so.

What application uses STUN?

STUN is a tool used by other protocols, such as Interactive Connectivity Establishment (ICE), the Session Initiation Protocol (SIP), and WebRTC.

What ports does STUN use?

A server using the STUN protocol will rely on both UDP and TCP protocols. These servers usually listen on port 3478. It's common for clients to contact STUN servers on specific IPs and ports (i.e., 3478). However, these servers can hint the client to perform tests on alternate port number and IP addresses.

Does messenger use stun?

Facebook Messenger

Messenger uses port 3478 for STUN, TURN over UDP on port 40002, TURN over TCP on port 3478.

How can I get IP address from WhatsApp?

Find IP Address on WhatsApp via InspectLet

InspectLet is a service that allows users to track the IP address of any person you are chatting with on WhatsApp or Facebook.

Is Messenger a VoIP?

Facebook Messenger has used VoIP (Voice Over Internet Protocol) since April 2014, which essentially allows users to communicate for free.

What is STUN used for Unifi?

STUN stands for Session Traversal Utilities for NAT and includes a set of protocols used in networking to better handle communication when going through network address translation (NAT). In simple terms, STUN provides a way for devices to securely communicate with other devices when they're located behind a router.

What is Cisco STUN?

Simple Traversal of UDP through NATs (STUN), is a network protocol allowing a client behind a NAT (Network Address Translator) to find out its public address, the type of NAT it is behind and the internet-side port associated by the NAT with a particular local port.

Can I use Google STUN server?

The Google STUN server is something you can freely use for development purposes, but, as a free service, there is no SLA. If you are deploying a commercial application, you should plan to deploy your own STUN/TURN servers.

What is STUN in Wireshark?

Simple Traversal Underneath NATs (STUN) is a lightweight protocol that serves as a tool for application protocols in dealing with NAT traversal.

References

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