安装 MySQL YUM 仓库源

## Fedora 28 ##dnf install https://dev.mysql.com/get/mysql80-community-release-fc28-1.noarch.rpm## Fedora 27 ##dnf install https://dev.mysql.com/get/mysql80-community-release-fc27-1.noarch.rpm## Fedora 26 ##dnf install https://dev.mysql.com/get/mysql80-community-release-fc26-1.noarch.rpm

CentOS 和 Red Hat (RHEL)## CentOS 7 and Red Hat (RHEL) 7 ##yum localinstall https://dev.mysql.com/get/mysql80-community-release-el7-1.noarch.rpm

CentOS 6 and Red Hat (RHEL) 6 ##yum localinstall https://dev.mysql.com/get/mysql80-community-release-el6-1.noarch.rpm

安装和更新

1.安装

Fedora 28/27/26
dnf install mysql-community-server
CentOS 7.5/6.10 and Red Hat (RHEL) 7.5/6.10
yum install mysql-community-server

2.安装 MySQL 5.7.23

Fedora 28/27/26

dnf --disablerepo=mysql80-community --enablerepo=mysql57-community install mysql-community-server

CentOS 7.5/6.10 and Red Hat (RHEL) 7.5/6.10

yum --disablerepo=mysql80-community --enablerepo=mysql57-community install mysql-community-server

3. 开启 MySQL server 并设置开机自启

Fedora 28/27/26  CentOS 7.5   Red Hat (RHEL) 7.5

systemctl start mysqld.service

use restart after update

systemctl enable mysqld.service

CentOS 6.10 and Red Hat (RHEL) 6.10

/etc/init.d/mysql start

use restart after update

or ##

service mysql start   ## use restart after updatechkconfig --levels 235 mysqld on

4. 获取初始的随机密码

grep 'A temporary password is generated for root@localhost' /var/log/mysqld.log |tail -1

Example Output:

2018-11-20T21:11:44.229891Z 1 [Note] A temporary password is generated for root@localhost: -et)QoL4MLid

And root password is: -et)QoL4MLid

5.重置密码

alter user root@localhost identified by '自定义密码';
新密码必须大小学数字特殊符号全部具备。

6. 连接本地mysql服务器

mysql -u root -p OR ## mysql -h localhost -u root -p