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Documentation Index

Fetch the complete documentation index at: https://bigbluebutton.com/docs/llms.txt

Use this file to discover all available pages before exploring further.

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BigBlueButton Servers

The web browser must be able to connect to the BigBlueButton server using the following ports and protocols for the best connection stability:
ProtocolPort(s)Description
TCP443HTTPS
TURN over TLS
ALPN[1]: h2,http/1.1,stun.turn
TCP, UDP3478STUN and TURN
TCP5349TURN over TLS
ALPN: stun.turn
UDP16384-32768WebRTC audio, video, and screen share media (encrypted using DTLS-SRTP)
Blindside Networks uses dynamic servers for most of its BigBlueButton sessions. The IP addresses used by the servers are allocated on-demand by our cloud hosting providers, and will change on a day-to-day basis. If you need to limit outgoing firewall exceptions to apply only to BigBlueButton servers, we recommend using DNS suffix or wildcard matching. The DNS hostnames used for BigBlueButton servers depend on the hosting region, and are as follows:
Hosting RegionDomain name suffix
Canada*.rna2.blindsidenetworks.com
United States*.rna1.blindsidenetworks.com
Europe*.reu1.blindsidenetworks.com
Asia Pacific*.roc2.blindsidenetworks.com

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STUN/TURN Servers

To improve the success and speed of WebRTC media connections, Blindside Networks runs STUN/TURN servers. If you are unable to allow the web browser to connect to the full range of UDP ports on the BigBlueButton server, ensure that the following ports are permitted for connections to the STUN/TURN servers:
ProtocolPort(s)Description
TCP443TURN over TLS
ALPN[1]: stun.turn
TCP, UDP3478STUN and TURN
TCP5349TURN over TLS
ALPN: stun.turn
The STUN/TURN servers are configured on static IP addresses, listed below. Please note that all of the STUN/TURN servers are global, and which server a given user will connect to depends on DNS geolocation and current network conditions.
HostnameIP Addresses
turn4.reu1.turn.blindsidenetworks.com206.189.242.91
134.209.83.176
2a03:b0c0:2:d0::f13:4001
2a03:b0c0:2:d0::f13:4002
turn5.reu1.turn.blindsidenetworks.com157.230.77.225
68.183.67.52
2a03:b0c0:3:d0::1328:f001
2a03:b0c0:3:d0::1328:f002
turn6.rna1.turn.blindsidenetworks.com165.227.252.138
157.230.177.241
2604:a880:400:d0::1ee1:9001
2604:a880:400:d0::1ee1:9002
turn7.rna1.turn.blindsidenetworks.com159.203.15.102
174.138.115.240
2604:a880:cad:d0::d91:a001
2604:a880:cad:d0::d91:a002
turn8.rna1.turn.blindsidenetworks.com45.55.124.139
142.93.190.81
2604:a880:800:c1::150:5001
2604:a880:800:c1::150:5002
turn9.rna1.turn.blindsidenetworks.com69.55.54.22
206.189.253.12
2604:a880:400:d0::17f1:d001
2604:a880:400:d0::17f1:d002
turn10.roc2.turn.blindsidenetworks.com188.166.204.178
159.89.192.13
2400:6180:0:d1::5c:a001
2400:6180:0:d1::5c:a002
turn11.roc2.turn.blindsidenetworks.com139.59.219.6
128.199.216.59
2400:6180:0:d0::5f:7001
2400:6180:0:d0::5f:7002
turn12.reu1.turn.blindsidenetworks.com159.223.232.74
161.35.247.127
2a03:b0c0:2:d0::11ab:8001
2a03:b0c0:2:d0::11ab:8002