On Wed, Feb 9, 2022 at 8:12 AM chomik MChamster <[email protected]> wrote:
> Hi Experts, > > I have three instances of guacamole, deployed using the steps from the > official guacamole manual with mysql and saml authentication. > From one of those instances I am getting the "GUAC_ID is required" error: > > tomcat9[505209]: 15:53:04.502 [http-nio-8080-exec-3] DEBUG > o.a.g.w.GuacamoleWebSocketTunnelEndpoint - Error connecting WebSocket > tunnel. > tomcat9[505209]: org.apache.guacamole.GuacamoleClientException: Parameter > "GUAC_ID" is required. > > I did read through this thread - > https://www.mail-archive.com/[email protected]/msg07521.html but > I'm not a developer, nor am I building a custom app or anything like that > (as far as I can tell). The strangest thing to me is that I deployed all > three instances following the same process. I have checked the > guacamole.properties as well as SAML authentication settings on Azure side > but am unable to find the apparent issue. > Wondering if you could point me to what could be the reason for this error > and/or maybe help me understand where is this GUAC_ID taken or generated > from. > That parameter, as well as several others, dictate the details of the request to connect. They are always automatically submitted by the web application. Are your three instances behind a balancer? Any chance they may be different versions, and requests from one are being misrouted by the balancer to another? Are you sure that this error is coming from legitimate connection attempts, and not bogus WebSocket connection attempts from someone probing your server? - Mike
