linux下安装mysql

先下载wget下载器

sudo yum -y install wget wget -V 查看版本，判断是否下载成功

下载 MySQL Yum Repository

wget https://repo.mysql.com//mysql80-community-release-el7-1.noarch.rpm

安装yum仓库源

yum localinstall mysql80-community-release-el7-1.noarch.rpm

导入安全密钥

sudo rpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-2022

安装mysql服务端

sudo yum -y install mysql-community-server

开启mysqld服务

systemctl start mysqld

查看服务是否开启

systemctl status mysqld

打开防火墙3306端口

firewall-cmd --zone=public --add-port=3306/tcp --permanent

查看端口是否被打开

firewall-cmd --list-ports

最后出现如图则安装成功

记得打开防火墙3306端口