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Re: Web Socket Support For Reverse Proxy

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On 4/01/19 5:48 am, Dean E. Weimer wrote:
> I am running Squid as a reverse proxy for several internally hosted
> websites, some HTTP and some HTTPS with wild card cerrtificate. We have
> recently setup a Atlassian Confluence Server, and are unable to edit any
> documents through the reverse proxy. On inspection of client web console
> logs we are receiving the following error.
> 
> failed: Error during WebSocket handshake: Unexpected response code: 200
> 

The client software does not support the WebSockets fallback
mechanism(s) properly.


> I have been searching the Squid documentation and can't find anything on
> web sockets. Is it not supported in reverse proxy mode?

Indeed. 200 status is a "success" response from the origin. The data
requested is still being delivered, just with HTTP instead of WebSockets.


> 
> Currently running Squid 4.3, the cache peer for the specific server is.
> 
> cache_peer 10.20.10.25 parent 8490 0 ssl no-query no-digest originserver
> name=confluence_parent sslcapath=/usr/local/share/certs
> sslflags=DONT_VERIFY_PEER login=PASSTHRU front-end-https=on proxy-only
> cache_peer_access confluence_parent allow CONFLUENCE SSL
> cache_peer_access confluence_parent deny all
> 
> The confluence server is configured to use a proxy, and is aware that it
> is there.

That could be the problem then. Why does the *server* need configuring
to *use* a proxy?

Clients use a proxy to fetch requests. Servers *receive* requests from a
proxy.


> There instructions only discuss settings specific to Nginx and
> Apache, in both cases the Confluence connector is the same the
> difference is the settings for Nginx and Apache.
> 


Amos
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