Cannot connect to database server mysql workbench windows

cannot connect to database server mysql workbench windows

Make sure that the server has not been configured to ignore network connections or (if you are attempting to connect remotely) that it has not been configured. When you're running a MySQL server on Windows with many TCP/IP connections to it, and you're experiencing that quite often your clients get a Can't connect. Start Sever brings log message f Cannot connect to MySQL server on '' () (). Connection properties that display are – Host: n/. MANAGEENGINE SAP MONITORING соединила плотных пакетов. Прошлась из подошве пакетов нитью крючком л вот вид изнаночной. Прошлась.

If it is not, clients cannot connect to it. For example, if an attempt to connect to the server fails with a message such as one of those following, one cause might be that the server is not running:. To correct this when you invoke a client program, specify a --port option to indicate the proper port number, or a --socket option to indicate the proper named pipe or Unix socket file.

To find out where the socket file is, you can use this command:. Make sure that the server has not been configured to ignore network connections or if you are attempting to connect remotely that it has not been configured to listen only locally on its network interfaces. Check to make sure that there is no firewall blocking access to MySQL. Your firewall may be configured on the basis of the application being executed, or the port number used by MySQL for communication by default.

Under Linux or Unix, check your IP tables or similar configuration to ensure that the port has not been blocked. The grant tables must be properly set up so that the server can use them for access control. For some distribution types such as binary distributions on Windows, or RPM and DEB distributions on Linux , the installation process initializes the MySQL data directory, including the mysql system database containing the grant tables.

For distributions that do not do this, you must initialize the data directory manually. For details, see Chapter 3, Postinstallation Setup and Testing. To determine whether you need to initialize the grant tables, look for a mysql directory under the data directory.

The data directory normally is named data or var and is located under your MySQL installation directory. Make sure that you have a file named user. MYD in the mysql database directory. If not, initialize the data directory. After doing so and starting the server, you should be able to connect to the server. After a fresh installation, if you try to log on to the server as root without using a password, you might get the following error message.

It means a root password has already been assigned during installation and it has to be supplied. See Section 3. If you need to reset the root password, see instructions in How to Reset the Root Password. After you have found or reset your password, log on again as root using the --password or -p option:. However, the server is going to let you connect as root without using a password if you have initialized MySQL using mysqld --initialize-insecure see Section 3. That is a security risk, so you should set a password for the root account; see Section 3.

If not, do so. The structure of the grant tables changes occasionally when new capabilities are added, so after an upgrade you should always make sure that your tables have the current structure. If a client program receives the following error message when it tries to connect, it means that the server expects passwords in a newer format than the client is capable of generating:.

Remember that client programs use connection parameters specified in option files or environment variables. If a client program seems to be sending incorrect default connection parameters when you have not specified them on the command line, check any applicable option files and your environment.

For example, if you get Access denied when you run a client without any options, make sure that you have not specified an old password in any of your option files! You can suppress the use of option files by a client program by invoking it with the --no-defaults option.

For example:. The option files that clients use are listed in Using Option Files. Environment variables are listed in Environment Variables. If you get the following error, it means that you are using an incorrect root password:.

If the preceding error occurs even when you have not specified a password, it means that you have an incorrect password listed in some option file. Try the --no-defaults option as described in the previous item. For information on changing passwords, see Section 4. If you have lost or forgotten the root password, see How to Reset the Root Password. In this case, the host name must be specified in a user table row on the server host, even though you are running the client program on the same host as the server.

The Access denied error message tells you who you are trying to log in as, the client host from which you are trying to connect, and whether you were using a password. Normally, you should have one row in the user table that exactly matches the host name and user name that were given in the error message. For example, if you get an error message that contains using password: NO , it means that you tried to log in without a password.

Check this by executing mysql -u root mysql and issuing this SQL statement:. The result should include a row with the Host and User columns matching your client's host name and your MySQL user name. If the following error occurs when you try to connect from a host other than the one on which the MySQL server is running, it means that there is no row in the user table with a Host value that matches the client host:.

You can fix this by setting up an account for the combination of client host name and user name that you are using when trying to connect. Please kindly provide the following information. Have you created this user for group authentication , if yes How? Please also refer to this Stack overflow link below and let us know if that answer your question.

Thanks for your reply. SQL workbench config 4. Hi again, I have just managed to make the connection! First I tried using a "known wrong PW" when trying to make the connection and got the same error message. I spent ages trying different things, it seems there is a PW issue in Azure. Thanks for your help anyway. Hi RobertVerrall , We are glad that you were able to resolve the issue. Please do let us know if you nee any further help.

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