How to solve the 2003 error of MySQL in Linux

mysql stay linux in 2003 How to solve the mistake

Today I'd like to share with you mysql stay linux in 2003 Relevant knowledge points on how to solve the error , Detailed content , Clear logic , I believe most people still know too much about this knowledge , So share this article for your reference , I hope you will gain something after reading this article , Now let's take a look .

resolvent ：1、 modify “my.cnf” file , stay “bind-address = 127.0.0.1” Add before “#” Comment it out ;2、 Add... To the file “skip-external-lockingskip-name-resolve”;3、 utilize “service mysql restart” Restart mysql The service can be .

The operating environment of this tutorial ：linux7.3 System 、mysql8.0.22 edition 、Dell G3 The computer .

mysql stay linux Medium 2003 Error resolution

resolvent ：

1、 modify mysql file

Input at the console , Get into mysql Under the table of contents ,

sudo su  // Get into root jurisdiction cd /etc/mysql

open my.cnf file , find bind-address = 127.0.0.1 Add in front # Comment out , as follows ：

#bind-address = 127.0.0.1

2、 Then add the following code

skip-external-lockingskip-name-resolve

If in my.cnf Can't find... In the file #bind-address = 127.0.0.1 As shown in the figure ：

So enter The second path /etc/mysql/mysql.conf.d/ Open in folder mysqld.cnf Just modify the file .

3、 Restart mysql service

service mysql restart

Expanding knowledge ：

By the way, when I was talking about the connection, I encountered is not allowed to connect to this MySQL server The wrong solution ;

1. Input at the console mysql -uroot -p password Get into mysql

（2. Input use mysql; Get into mysql database

3. Input update user set host=’%’ where user=’root’ ; To allow ip visit .） Be careful ： The method in parentheses is to allow everyone to connect , Easy to be hacked by others , So you need to set the specified IP visit . The specific method is as follows ：

Direct input ：

GRANT ALL PRIVILEGES ON *.* TO 'root'@' To specify IP Address ' IDENTIFIED BY ' Set password for ' WITH GRANT OPTION;

You can also update the host Updated to % , Then through the graphical interface (SqlYog, workbench etc. ) To update host For their own ip.

4. Continue to input flush privileges; remember , No matter which method you choose above , This step should be performed to update the database user permissions . It's very important ！！！

5. Then reconnect , So the problem is solved .

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