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This article mainly gives you a brief introduction to the solution to the failure of client connection mysql. You can check the relevant professional terms on the Internet or find some related books to supplement them. We will not dabble here. Let's go straight to the topic. I hope this article on the solution to the failure of client connection mysql can bring you some practical help.

Ensure that there are users who can be linked anywhere

Use the following sql query in Linux

SELECT host, user FROM mysql.user

The query results are as follows

+-+ | host | user | +-+-+ |% | admin | | 127.0.0.1 | admin | | localhost | debian-sys-maint | | localhost | mysql.session | | localhost | mysql.sys | | localhost | root | +-+-+

You need to ensure that the following results exist

+-+ | host | user | +-+-+ |% | admin | +-+-+

If it exists, you can log in using the admin user (from anywhere)

If it does not exist, you can add a corresponding user record and the specific grant command can be found on the official website.

Mysql > grant all on yourdb.* to admin@'%' identified by 'yourpassword'; / / Note that the yourdb and yourpassword here are changed to their own actual values to modify the bind-address in the mysql configuration file

If you are using a virtual machine, you may also need to check the bound ip issues.

Use the following command

Mysqld-- verbose-- help | grep bind-address

The display results are as follows

-- bind-address=name IP address to bind to.bind-address 0.0.0.0

You need to make sure that your bind-address must be 0.0.0.0

The bind address have to be 0.0.0.0 (which means "every IP addresses") to work.

So how do you change the bind-address?

Find your mysqld.cnf file, search bind-address and modify it

In a general Linux, this file is in the / etc/mysql/mysql.conf.d directory

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