Apache HTTP Server Version 2.4
Description: | Websockets support module for
mod_proxy |
---|---|
Status: | Extension |
Module Identifier: | proxy_wstunnel_module |
Source File: | mod_proxy_wstunnel.c |
Compatibility: | Available in httpd 2.4.5 and later |
This module requires the service of mod_proxy
. It provides support for the tunnelling of web
socket connections to a backend websockets server. The connection
is automatically upgraded to a websocket connection:
Upgrade: WebSocket Connection: Upgrade
Proxying requests to a websockets server like echo.websocket.org
can be done using the
ProxyPass
directive:
ProxyPass "/ws2/" "ws://echo.websocket.org/" ProxyPass "/wss2/" "wss://echo.websocket.org/"
Load balancing for multiple backends can be achieved using mod_proxy_balancer
.
In fact the module can be used to upgrade to other protocols, you can set the upgrade
parameter in the ProxyPass
directive to allow the module to accept other protocol.
NONE means you bypass the check for the header but still upgrade to WebSocket.
ANY means that Upgrade
will read in the request headers and use
in the response Upgrade
Description: | Sets the maximum amount of time to wait for data on the websockets tunnel |
---|---|
Syntax: | ProxyWebsocketIdleTimeout num[ms] |
Default: | ProxyWebsocketIdleTimeout 0 |
Context: | server config, virtual host |
Status: | Extension |
Module: | mod_proxy_wstunnel |
This directive imposes a maximum amount of time for the tunnel to be left open while idle. The timeout is considered in seconds by default, but it is possible to increase the time resolution to milliseconds adding the ms suffix.