Use Yum to configure the MySQL source and install Mysql_linux under CentOS 7

CentOS7 default database is MARIADB, configuration and so on is not accustomed to, so decided to change to MySQL, but CentOS7 yum source in the default seems to be no MySQL. To solve this problem, we first download the MySQL repo source.

1. Because there is no MySQL in the CentOS yum source, you need to download yum repo profile on MySQL's official website.

wget http://dev.mysql.com/get/mysql57-community-release-el7-9.noarch.rpm

2. Install Yum repo file

RPM-IVH mysql57-community-release-el7-9.noarch.rpm

When the execution is complete, two repo files are generated in the/etc/yum.repos.d/directory Mysql-community.repo Mysql-community-source.repo

3. Then update the Yum cache

Yum Clean all
yum Makecache

4. Install MySQL

Yum Install mysql-community-client.x86_64 mysql-community-common.x86_64 mysql-community-devel.x86_64 Mysql-community-libs.x86_64 mysql-community-server.x86_64

Or

RPM Install Mysql-server

5. Start MySQL

Service mysqld Start

6. View the initial password

grep ' temporary password '/var/log/mysqld.log

Get the following content:

2016-10-28t10:36:32.369073z 1 [note] A temporary password are generated for root@localhost:5oazqgpiat!p

7. Login with initial password

Mysql-u root-p//Enter, then enter the initial password found in the previous step

8. Change the initial password

ALTER USER ' root ' @ ' localhost ' identified by ' mynewpass4! ';
MySQL now requires a higher password strength, including uppercase and lowercase letters, numbers, and special characters

At this point, the Mysql-server installation is complete