wstunnel | sockets tunnel for HTTP requests | HTTP library

I want to implement Laravel-WebSocket + pusher substitute (https://github.com/beyondcode/laravel-websockets) with Laravel-echo on an Azure VM with apache2 reverse proxy. However, no matter what I tried, they just can't connect. It's always between error 404, 502 and 500 when a client-side listener tries to connect.

This VM only allows entry through 80 and 443. Therefore, I did reverse proxy which redirects '/WebSocket' to http://127.0.0.1:6001 (where the WebSocket runs. TCP) The server is under https. I've tried to modify server .conf file to no avail. I've tried to enable/disable SSL and encrypted as well. I tried to directly access 127.0.0.1:6001 within the VM using elinks, but with http I got 'error connecting to socket' with https I got 'SSL error'. I'm fairly sure that the request at least reached the machine, as if I shut down the WebSocket server the error changes into 503 Service not available. Also, I can see apache2 error logs as requests being made. Most of the time it is 502 proxy error. (AH01102: error reading status line from remote server 127.0.0.1:6001) If I tweak SSL settings it generally changes to 404, which I take as a sign of incorrect certificate/key in this case. The firewall is open.

I've tried every guide I can find. Most of them are about nginx, which I can't change to. If possible I would rather not set up another virtual host.

This is in websocket.php:

When I tried to connect to Spring Boot web socket from Android stomp client, it is not connecting and the Catalina log shows

I am trying to redirect traffic from Apache to Tomcat on CentOs server by using mod_proxy and mod_proxy_wstunnel modules. HTTP traffic is redirected without problems but I am not able to successfully redirect websocket traffic with any configuration I tried so far. It gives me 200 response code instead of 101.

I have read a lot of similar questions, but haven't find any solution yet. These one have similar problems. Question 1, Question 2

I'm using Apache Server 2.4.6 - > Apache Tomcat 7.0.92 - > Java Application with Spring and javax socket implementation.

Here is my modules:

Here is my httpd config:

Having Apache (2.4.29) configured as reverse proxy for WebSocket requests with mod-proxy-wstunnel:

I am new to WebSocket world and even after a week, I still could not find how to use it with PHP without using any 3rd Party Library. Or not sure if it is even possible.

I have 3 questions,

1) Do we must need to use some 3rd Party APIs or Libraries like Ratchet, PHP-Push-WebSocket or PHP WebSocket to enable PHP to communicate over WebSocket protocol?

2) If your answer to above question is yes then what is the advantage/purpose of using Apache's mod_proxy_wstunnel?

3) If I use any PHP WebSocket 3rd Party Library, then do I still need to enable and use Apache's mod_proxy_wstunnel? If No, then again what is the purpose of Apache's mod_proxy_wstunnel?

I went through this Using go-websocket behind Apache mod_proxy_wstunnel. In this question, the OP has indicated some go-websocket but unfortunately the link is giving 404 Error and hence I cannot understand if the user has used any 3rd Party API.

Any help would be highly appreciated. Thanks in advance.

I have already looked at this question and various others on both SO and related sites, but none of the solutions suggested so far have worked.

I am running tty.js on localhost:8080 and verified that websockets work correctly when hitting that port directly. Now, I am attempting to connect to tty.js through an Apache reverse proxy. The application can work without using Websockets, but I am trying to understand why Websockets do not work.

Here is my Apache configuration for testing on localhost with a fresh Apache build from source.