1. 添加MySQL Yum源
MySQL官网>DOWNLOADS>MySQL Yum Repository找到合适版本的yum源
$wget https://dev.mysql.com/get/mysql80-community-release-el7-2.noarch.rpm $sudo rpm -Uvh mysql80-community-release-el7-2.noarch.rpm #查看MySQL数据库各个版本信息 $yum repolist all | grep mysql
2. 选择安装版本
修改/etc/yum.repos.d/mysql-community.repo 文件，选择MySQL5.7版本
# Enable to use MySQL 5.6 [mysql56-community] name=MySQL 5.6 Community Server baseurl=http://repo.mysql.com/yum/mysql-5.6-community/el/7/$basearch/ enabled=0 # 禁止 gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql # Enable to use MySQL 5.7 [mysql57-community] name=MySQL 5.7 Community Server baseurl=http://repo.mysql.com/yum/mysql-5.7-community/el/7/$basearch/ enabled=1 # 安装 gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql [mysql80-community] name=MySQL 8.0 Community Server baseurl=http://repo.mysql.com/yum/mysql-8.0-community/el/7/$basearch/ enabled=0 # 禁止 gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
3. 安装
#执行以下命令安装MySQL yum install mysql-community-server #启动mysql（CentOS7中） systemctl start mysqld.service #低版本的操作系统可用以下指令 service mysqld start #查看MySQL状态 systemctl status mysqld.service #低版本操作系统可用以下指令 service mysqld status
4. 查看并修改密码
$grep "password" /var/log/mysqld.log 2019-04-11T08:17:16.706096Z 1 [Note] A temporary password is generated for root@localhost: ux#bkaM(k1q- $mysql -u root -p >ux#bkaM(k1q- # 修改密码 mysql>ALTER USER 'root'@'localhost' IDENTIFIED BY 'complex password'; mysql>set global validate_password_policy=0; mysql>set global validate_password_length=1; mysql>ALTER USER 'root'@'localhost' IDENTIFIED BY 'simple password';
5. 配置开放3306端口
授权的方式允许任何主机访问mysql服务器：【一般采用这个即可，限制端口访问交由firewalld来做】
mysql>GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'password' WITH GRANT OPTION;
限定ip访问：
mysql>GRANT ALL PRIVILEGES ON *.* TO 'jack'@'10.10.50.127' IDENTIFIED BY 'password' WITH GRANT OPTION;
以上就是centos7 安装mysql和mysqlclient遇到的一些坑和需要注意的知识点总结，感谢大家的阅读和对的支持。
