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Can we do IP scanning using QT

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  • C closx

    @jsulm said in Can we do IP scanning using QT:

    @closx He needs the IP of his server which not necessarily runs on same machine...

    Then we can replace the code with

    QProcess process;
    process.start("dig +short test.com > ipaddress");
    QString fname="ipaddress";
    QFile file(fname);
    QString ip;
    if (file.open(QIODevice::ReadOnly | QIODevice::Text)){
       QTextStream stream(&file);
       while (!stream.atEnd()){
                ip = stream.readLine();
        }
    }
    file.close();
    

    Didn't I still get the main problem? Am I retarded? lmao

    jsulmJ Offline
    jsulmJ Offline
    jsulm
    Lifetime Qt Champion
    wrote on last edited by
    #21

    @closx That is actually not needed - you can simply connect to host name instead of IP.

    https://forum.qt.io/topic/113070/qt-code-of-conduct

    ManiRonM 1 Reply Last reply
    3
    • jsulmJ jsulm

      @ManiRon said in Can we do IP scanning using QT:

      www.test.com

      is this the host name of your server?

      ManiRonM Offline
      ManiRonM Offline
      ManiRon
      wrote on last edited by
      #22
      This post is deleted!
      1 Reply Last reply
      0
      • jsulmJ jsulm

        @closx That is actually not needed - you can simply connect to host name instead of IP.

        ManiRonM Offline
        ManiRonM Offline
        ManiRon
        wrote on last edited by
        #23

        @jsulm how to set the host name of server ? can you provide me an example ?

        jsulmJ 1 Reply Last reply
        0
        • ManiRonM ManiRon

          @jsulm how to set the host name of server ? can you provide me an example ?

          jsulmJ Offline
          jsulmJ Offline
          jsulm
          Lifetime Qt Champion
          wrote on last edited by
          #24

          @ManiRon Read the manual of your server or OS.
          For Ubuntu Linux for example see https://www.cyberciti.biz/faq/ubuntu-change-hostname-command/

          https://forum.qt.io/topic/113070/qt-code-of-conduct

          ManiRonM 1 Reply Last reply
          3
          • jsulmJ jsulm

            @ManiRon Read the manual of your server or OS.
            For Ubuntu Linux for example see https://www.cyberciti.biz/faq/ubuntu-change-hostname-command/

            ManiRonM Offline
            ManiRonM Offline
            ManiRon
            wrote on last edited by
            #25

            @jsulm i want for windows

            mrjjM 1 Reply Last reply
            0
            • ManiRonM ManiRon

              @jsulm i want for windows

              mrjjM Offline
              mrjjM Offline
              mrjj
              Lifetime Qt Champion
              wrote on last edited by
              #26

              @ManiRon
              Its very easy to find on google
              https://www.cnet.com/how-to/how-to-change-your-computers-name-in-windows-10/
              Make sure it matches the Windows OS you are using.

              ManiRonM 1 Reply Last reply
              2
              • mrjjM mrjj

                @ManiRon
                Its very easy to find on google
                https://www.cnet.com/how-to/how-to-change-your-computers-name-in-windows-10/
                Make sure it matches the Windows OS you are using.

                ManiRonM Offline
                ManiRonM Offline
                ManiRon
                wrote on last edited by
                #27

                @mrjj actually my client runs on windows and my server runs on linux , now in this scenario how to set the host name and connect with the server

                mrjjM 1 Reply Last reply
                0
                • ManiRonM ManiRon

                  @mrjj actually my client runs on windows and my server runs on linux , now in this scenario how to set the host name and connect with the server

                  mrjjM Offline
                  mrjjM Offline
                  mrjj
                  Lifetime Qt Champion
                  wrote on last edited by mrjj
                  #28

                  @ManiRon
                  If the server is Linux, it's like @jsulm showed.
                  The host name of the server is not related to the client. nothing needs to be done client side
                  for server to have a hostname/name.
                  Its just an alternative to the pure IP.

                  Howver, is the server on the same network as you ? ( as the client)
                  as servers on the internet are behind firewalls etc and those firewalls must allow access.

                  ManiRonM 1 Reply Last reply
                  0
                  • mrjjM mrjj

                    @ManiRon
                    If the server is Linux, it's like @jsulm showed.
                    The host name of the server is not related to the client. nothing needs to be done client side
                    for server to have a hostname/name.
                    Its just an alternative to the pure IP.

                    Howver, is the server on the same network as you ? ( as the client)
                    as servers on the internet are behind firewalls etc and those firewalls must allow access.

                    ManiRonM Offline
                    ManiRonM Offline
                    ManiRon
                    wrote on last edited by
                    #29

                    @mrjj three systems which are connected one to one

                    mrjjM 1 Reply Last reply
                    0
                    • ManiRonM ManiRon

                      @mrjj three systems which are connected one to one

                      mrjjM Offline
                      mrjjM Offline
                      mrjj
                      Lifetime Qt Champion
                      wrote on last edited by
                      #30

                      @ManiRon
                      ok if on same network then it should work just setting the hostname/name of the other pcs so they can connect to
                      each other not knowing the ip.

                      1 Reply Last reply
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