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Qt Remote Database connection

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  • D dheerendra
    5 Dec 2018, 05:54

    112.17.98.18 is this in LAN ? Hope there is no firewall etc between your box and 112.17.98.18.
    Since telnet is not able to connect to port 111 are you sure that SQL is running at the port 111 ?

    T Offline
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    Tonny
    wrote on 5 Dec 2018, 06:10 last edited by
    #12

    @dheerendra
    Sir SQL is not running in the port 111.Sql port is 3306 ..

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    • D Offline
      D Offline
      dheerendra
      Qt Champions 2022
      wrote on 5 Dec 2018, 06:12 last edited by
      #13

      OK can you check telnet 112.17.98.18 3306 ? Does it work ? If it work, atleast DB is up at that port.

      Dheerendra
      @Community Service
      Certified Qt Specialist
      http://www.pthinks.com

      T 1 Reply Last reply 5 Dec 2018, 06:30
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      • D dheerendra
        5 Dec 2018, 06:12

        OK can you check telnet 112.17.98.18 3306 ? Does it work ? If it work, atleast DB is up at that port.

        T Offline
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        Tonny
        wrote on 5 Dec 2018, 06:30 last edited by
        #14

        @dheerendra sir it shows telnet: Unable to connect to remote host: Connection refused

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        • D Offline
          D Offline
          dheerendra
          Qt Champions 2022
          wrote on 5 Dec 2018, 06:54 last edited by
          #15

          If you have access to the DB Server box, can you login to the system. In same system can you try to do telnet <IP> Port#. Just check the configuration of the remote sql server. Is it configured to listen for network connections also ?

          Dheerendra
          @Community Service
          Certified Qt Specialist
          http://www.pthinks.com

          T 1 Reply Last reply 6 Dec 2018, 08:15
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          • T Tonny
            5 Dec 2018, 05:56

            @jsulm mysql client?Please give the procedure to connect it.

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            jsulm
            Lifetime Qt Champion
            wrote on 5 Dec 2018, 08:07 last edited by
            #16

            @Tonny said in Qt Remote Database connection:

            mysql client?Please give the procedure to connect it.

            https://dev.mysql.com/doc/refman/8.0/en/mysql.html

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

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            • D dheerendra
              5 Dec 2018, 06:54

              If you have access to the DB Server box, can you login to the system. In same system can you try to do telnet <IP> Port#. Just check the configuration of the remote sql server. Is it configured to listen for network connections also ?

              T Offline
              T Offline
              Tonny
              wrote on 6 Dec 2018, 08:15 last edited by
              #17

              @dheerendra Sir error solved.
              Sir can you please tell me how to sent values through http protocol using qt creator in the REST API
              please?Is there any solution for that sir

              J 1 Reply Last reply 6 Dec 2018, 09:02
              0
              • D Offline
                D Offline
                dheerendra
                Qt Champions 2022
                wrote on 6 Dec 2018, 08:17 last edited by
                #18

                What was the issue ? Please provide the details here. It helps others. You can move the issue to SOLVED state.

                Dheerendra
                @Community Service
                Certified Qt Specialist
                http://www.pthinks.com

                T 1 Reply Last reply 6 Dec 2018, 08:45
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                • D dheerendra
                  6 Dec 2018, 08:17

                  What was the issue ? Please provide the details here. It helps others. You can move the issue to SOLVED state.

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                  Tonny
                  wrote on 6 Dec 2018, 08:45 last edited by
                  #19

                  @dheerendra bind address commented. it was 127.0.0.1 (/etc/mysql/mysql.cnf);

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                  • D Offline
                    D Offline
                    dheerendra
                    Qt Champions 2022
                    wrote on 6 Dec 2018, 08:52 last edited by
                    #20

                    Your server was configured to listen only for local IP address. You tried to connect to server remotely. This was the issue.

                    Dheerendra
                    @Community Service
                    Certified Qt Specialist
                    http://www.pthinks.com

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                    • T Tonny
                      6 Dec 2018, 08:15

                      @dheerendra Sir error solved.
                      Sir can you please tell me how to sent values through http protocol using qt creator in the REST API
                      please?Is there any solution for that sir

                      J Offline
                      J Offline
                      jsulm
                      Lifetime Qt Champion
                      wrote on 6 Dec 2018, 09:02 last edited by
                      #21

                      @Tonny said in Qt Remote Database connection:

                      Sir can you please tell me how to sent values through http protocol using qt creator in the REST API

                      It's Qt not QtCreator. QtCreator is an IDE.
                      See https://doc.qt.io/qt-5.11/qtnetwork-programming.html

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

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                      • W Offline
                        W Offline
                        web_betreuer
                        wrote on 6 Dec 2021, 14:53 last edited by web_betreuer 12 Jun 2021, 14:54
                        #22

                        Mysql or mariadb listen by default to the loopback address 127.0.0.1
                        you can change this values to the real local networkaddress in
                        /etc/mysql/ mysqld.cnf

                        bind-address = 192.178.xx.xx
                        mysqlx-bind-address = 192.178.xx.xx

                        restart the sql.
                        that's it

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