【Linux系列】Centos 7安裝 Mysql8.0（五）

目的

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本文主要介紹如下兩點：

一. 如何安裝Mysql8.0

二. Navicat鏈接Mysql

一. 如何安裝Mysql8.0

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安裝Mysql有兩種方式：

直接下載官方的源（比較慢）

https://dev.mysql.com/get/mysql80-community-release-el7-1.noarch.rpm # 下載rpm包
yum localinstall mysql80-community-release-el7-1.noarch.rpm # 處理相關依賴
yum install mysql-community-server # 安裝

用163的源，分開安裝

wget https://mirrors.163.com/mysql/Downloads/MySQL-8.0/mysql-community-common-8.0.18-1.el7.x86_64.rpm
wget https://mirrors.163.com/mysql/Downloads/MySQL-8.0/mysql-community-libs-8.0.18-1.el7.x86_64.rpm
wget https://mirrors.163.com/mysql/Downloads/MySQL-8.0/mysql-community-client-8.0.18-1.el7.x86_64.rpm
wget https://mirrors.163.com/mysql/Downloads/MySQL-8.0/mysql-community-server-8.0.18-1.el7.x86_64.rpm

rpm -ivh mysql-community-common-8.0.18-1.el7.x86_64.rpm  # rpm下載
rpm -ivh mysql-community-libs-8.0.18-1.el7.x86_64.rpm
rpm -ivh mysql-community-client-8.0.18-1.el7.x86_64.rpm
rpm -ivh mysql-community-server-8.0.18-1.el7.x86_64.rpm

重啓Mysql

service mysqld start

查看Mysql默認密碼

cat /var/log/mysqld.log | grep password

登陸

mysql -uroot -p # 回車，複製上面的密碼便可

二. Navicat鏈接Mysql

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鏈接mysql以前，先修改下root的密碼

set global validate_password.policy=0; #修改策略
set global validate_password.length=1; 
alter user 'root'@'localhost' identified with mysql_native_password by '12345678'; # 測試環境，密碼能夠簡單點，Mysql8.0必須用mysql_native_password給帳號加密

能夠exit退出，從新登陸看看。

修改root帳號的Host，便於IP鏈接

use mysql; #mysql的基礎表
update user set Host = '%' where User='root'; # 正式環境，能夠建立新的Mysql帳號，設置成具體的ip

開放3306端口

firewall-cmd --add-port=3306/tcp --permanent
firewall-cmd --reload

下面用Navicat新建鏈接，便可