How to install and configure Mysql5.7 on Centos7-Mysql Tutorial-php.cn

There are countless tutorials on installing mysql database on Linux on the Internet, but most of them are full of loopholes. Today, in order to help those who need it, I wrote a tutorial on installing and configuring mysql5.7 on Centos7.

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The first step: Get the mysql YUM source

Enter the mysql official website to obtain the RPM package download address

https://dev.mysql.com/downloads/repo/yum/

Right-click to copy the link address https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm

Get the address of the rpm package

Recommended Manual: MySQL Development Manual

Step 2: Download and install mysql source

Download mysql first Source installation package

[root@localhost ~]# wget https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm

-bash: wget: command not found

Let’s install wget first

yum -y install wget

then executewget https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm

Install mysql source

yum - y localinstall mysql57-community-release-el7-11.noarch.rpm

Step 3: Install Mysql online

yum -y install mysql-community-server

It will take a while to download a lot of things;

Step 4: Start the Mysql service

systemctl start mysqld

Step 5: Set up startup

systemctl enable mysqld systemctl daemon-reload

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Step 6: Modify the root local login password

After the mysql installation is completed, in the /var/log/mysqld.log file A temporary default password is generated for root.

vi /var/log/mysqld.log

##The password here is: xtqh0Neteu=7

mysql -u root -p Enter password:

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Enter the temporary password to enter the mysql command line;

ALTER USER 'root'@'localhost' IDENTIFIED BY 'LCode1996.';

Change the password to LCode1996. (Note that the default password policy of mysql5.7 requires that the password must be a combination of uppercase and lowercase alphanumeric special letters, at least 8 digits)

Step Seven: Set to allow remote login

Mysql does not allow remote login by default. We need to set it up and open the firewall to port 3306;

mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'LCode1996.' WITH GRANT OPTION; Query OK, 0 rows affected, 1 warning (0.05 sec) mysql> exit; Bye

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Exit;

[root@localhost ~]# firewall-cmd --zone=public --add-port=3306/tcp --permanent success [root@localhost ~]# firewall-cmd --reload success [root@localhost ~]#

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Open port 3306

Step 8: Configure the default encoding to UTF-8

Modify the /etc/my.cnf configuration file and add it under [mysqld] Encoding configuration, as shown below:

[mysqld] character_set_server=utf8 init_connect='SET NAMES utf8' [root@localhost ~]# vi /etc/my.cnf

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After editing and saving, restart the mysql service: systemctl restart mysqld

Check the encoding:

mysql> ; show variables like '%character%';

Step 9: Test

We use the local sqlyog remote connection Download mysql in the virtual machine

## At this point, Mysql installation and configuration is complete;

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