大家好，我是考100分的小小码 ，祝大家学习进步，加薪顺利呀。今天说一说centos安装mysql5.7,希望您对编程的造诣更进一步.
![centos安装mysql5.7[数据库教程]](https://www.yht7.com/upload/image/images/imgsql/15.jpg "centos安装mysql5.7插图")
切换yum源
网易yum源：
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.163.com/.help/CentOS7-Base-163.repo
阿里云yum源：
wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo
yum clean all
yum makecache
安装mysql5.7 yum源
wget https://dev.mysql.com/get/mysql57-community-release-el7-9.noarch.rpm
(如果虚拟机安装 可以使用wget http://dev.mysql.com/get/mysql57-community-release-el7-9.noarch.rpm --no-check-certificate)安装mysql rpm包
rpm -ivh mysql57-community-release-el7-9.noarch.rpm安装msyql
yum install mysql-server启动mysql
rpm -ivh mysql57-community-release-el7-9.noarch.rpm
查看默认密码
grep ‘temporary password‘ /var/log/mysqld.log
[[email protected] app]# grep ‘temporary password‘ /var/log/mysqld.log
2020-08-18T14:39:59.127422Z 1 [Note] A temporary password is generated for [email protected]: 2fdiYmMZ/<rW登录mysql
mysql -u root -p
修改初始root密码
ALTER USER ‘root‘@‘localhost‘ IDENTIFIED BY ‘[email protected]‘;
授权其他机器登录
mysql> GRANT ALL PRIVILEGES ON *.* TO ‘root‘@‘%‘ IDENTIFIED BY ‘[email protected]‘ WITH GRANT OPTION;
Query OK, 0 rows affected, 1 warning (0.00 sec)
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)
开启防火墙：
systemctl status firewalld –查看防火墙状态
firewall-cmd –list-all –查看防火墙开放端口
firewall-cmd –zone=public –add-port=3306/tcp –permanent
–zone=public 添加时区
–add-port=8080/tcp 添加端口
–permanent 永久生效
firewall-cmd –reload –加载防火墙新配置文件( 以 root 身份输入以下命令，重新加载防火墙，并不中断用户连接，即不丢失状态信息. )
centos安装mysql5.7
原文地址：https://blog.51cto.com/cw666/2521588
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