02-26 12:09 阅读 152

centos7 安装mysql和mysqlclient遇到的坑总结

这篇文章主要介绍了centos7 安装mysql和mysqlclient遇到的坑以及相关知识点代码，有需要的朋友们参考下。

1. 添加MySQL Yum源

MySQL官网>DOWNLOADS>MySQL Yum Repository找到合适版本的yum源

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$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】

1	`mysql>GRANT ALL PRIVILEGES ON . TO 'root'@'%' IDENTIFIED BY 'password' WITH GRANT OPTION;`

限定ip访问：

1	`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