centos7 安装mysql和mysqlclient遇到的坑总结

服务器

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亿速云的支持。