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Asked: 2026-06-06T16:39:49+00:00

I’ve made a websocket server with websocketpp (C++), and a websocket client in PHP.

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I’ve made a websocket server with websocketpp (C++), and a websocket client in PHP. When I test it on my local machine it works: the client can connect to the server and they can send each other some data.

Then I placed the server-script on my server and compiled it there. After compiling it is running and “working”: the server is also a client of another server, these connect and transfer data. However, my PHP client cannot connect to the C++ websocket server. I actually do not know which host URL to use. I’ve tried these:

ws://www.url.nl:port/folder/program-name
ws://www.url.nl:port/
ws://www.url.nl:port/program-name

How can I refer to my server?

I hope my problem is clear, but feel free to ask for clarifications if needed.

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1 Answer

  1. Editorial Team

    Then your url schould be ws://www.url.nl:port/

    Make shure there is no firewall on your server/network which blocks your request. You can do this by running telnet www.url.nl port. If you have access to netcat use nc -v www.url.nl port this would give you much more verbose information on your connection status.

    It would be very helpfull if you have any error messages. 😉

    EDIT running service:

    Make shure your service is running and listen on correct network interface and port.

    use netstat -tulpen on linux or netstat -ano on windows

    EDIT check your firewall rules:
    iptables -L

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