[Freeswitch-users] WebSocket behind NGINX

Anton anton.vojlenko at gmail.com
Sat Jan 30 22:20:07 MSK 2016

Hello All,

I have to proxy all websocket requests though a nginx server. Right now 
I am using next configuration:

map $http_upgrade $connection_upgrade {
     default upgrade;
     ''      close;

server {
     listen 443;
     server_name  wss.somedomain.com.ua;

     ssl on;
     ssl_certificate      /etc/nginx/cert.pem;
     ssl_certificate_key  /etc/nginx/private.key;

     location / {
         proxy_http_version 1.1;
         proxy_set_header Upgrade $http_upgrade;
         proxy_set_header Connection $connection_upgrade;
         proxy_read_timeout 86400s;

     access_log /var/log/nginx/wss_access;
     error_log /var/log/nginx/wss_error debug;

I dumped traffic from nginx and found out that "switching protocol" 
phrase was successful but INVITE message from my browser in pending state.
Maybe FreeSWITCH wants real IP not loopback? Who have faced with similar 


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