CentOS7下安装MySQL5.7.39的详细过程

一、下载

下载地址：https://dev.mysql.com/downloads/mysql/

二、解压

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1	tar xvf mysql-5.7.39-1.el7.x86_64.rpm-bundle. tar

三、卸载已安装包

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1 2	rpm -qa| grep mariadb mariadb-libs-5.5.68-1.el7.x86_64

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1	rpm -e --nodeps mariadb-libs-5.5.68-1.el7.x86_64

四、按顺序安装rpm包

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rpm -ivh mysql-community-common-5.7.39-1.el7.x86_64.rpm rpm -ivh mysql-community-libs-5.7.39-1.el7.x86_64.rpm rpm -ivh mysql-community-client-5.7.39-1.el7.x86_64.rpm // 如果安装 mysql-community-server-5.7.39-1.el7 报 libaio.so.1 依赖错误，需先安装 libaio-0.3.109-13.el7.x86_64.rpm rpm -ivh libaio-0.3.109-13.el7.x86_64.rpm rpm -ivh mysql-community-server-5.7.39-1.el7.x86_64.rpm

安装 server 还可能报错：

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rpm -ivh mysql-community-server-5.7.39-1.el7.x86_64.rpm warning: mysql-community-server-5.7.39-1.el7.x86_64.rpm: Header V4 RSA /SHA256 Signature, key ID 3a79bd29: NOKEY error: Failed dependencies:      net-tools is needed by mysql-community-server-5.7.39-1.el7.x86_64

执行以下命令安装 net-tools 解决：

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1	yum install net-tools -y

五、启动

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1	systemctl  start  mysqld

六、找到初始密码

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1	cat /var/log/mysqld .log | grep 'password is generated'

七、修改密码并授权

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alter user 'root' @ 'localhost' identified by 'xxxxxx' ; grant all privileges on *.*  to  'root' @ '%'  identified by 'xxxxxx'  with grant option ; flush privileges ;

八、开启防火墙，允许外网访问

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

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原文链接：https://blog.csdn.net/u012069313/article/details/126720159