how nginx handle websocket proxying

allenhe nginx-forum at forum.nginx.org
Thu Nov 26 12:03:56 UTC 2020


Can someone elaborate this a little bit?
"NGINX supports WebSocket by allowing a tunnel to be set up between both
client and back-end servers."

what is the "tunnel" here? 
Does it mean the client will talk with the back-end server directly after
the http Upgrade handshakes?

Posted at Nginx Forum: https://forum.nginx.org/read.php?2,290078,290078#msg-290078



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