Fennec

Fennec is a STUN server by Erlang Solutions whose internals aim to be well written and tested.

Rationale

Many modern applications (mobile and web) are media intensive like those involving audio, video, gaming, and file transfer. Fennec helps to get communication done peer-to-peer (without going through a server) so your bandwidth and server-side costs don't need to be as much of a concern.

Resources

Some helpful technical material:

For the bigger picture see the RTCPeerConnection plus servers section under this tutorial
Fennec alone isn't enough to get peer-to-peer communication going. The reason why is described in this tutorial. Our XMPP server, MongooseIM, is perfect for building a combination of signaling and chat applications
Find the STUN, TURN, and ICE RFCs (at the IETF site)

Installation

Fennec is available on Hex. To use it, just add it to your dependencies:

def deps do
  [{:fennec, "~> 0.1.0"}]
end

Checklist of STUN/TURN methods supported by Fennec

Binding
Allocate
Refresh
Send
Data
CreatePermission
ChannelBind

Checklist of STUN/TURN attributes supported by Fennec

Comprehension Required

XOR-MAPPED-ADDRESS
MESSAGE-INTEGRITY
ERROR-CODE
UNKNOWN-ATTRIBUTES
REALM
NONCE
CHANNEL-NUMBER
LIFETIME
XOR-PEER-ADDRESS
DATA
XOR-RELAYED-ADDRESS
EVEN-PORT
REQUESTED-TRANSPORT
DONT-FRAGMENT
RESERVATION-TOKEN
PRIORITY
USE-CANDIDATE
ICE-CONTROLLED
ICE-CONTROLLING

Comprehension Optional

SOFTWARE
ALTERNATE-SERVER
FINGERPRINT

License

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.