(1) 安装Mysql5.7:
执行命令:rpm -ivh http://repo.mysql.com/yum/mysql-5.7-community/el/7/x86_64/mysql-community-release-el7-7.noarch.rpm
执行命令:yum install mysql-community-server
(2) 配置Mysql开机自动启动
执行命令:systemctl enable mysqld
(3) 启动MYSQL:
执行命令:systemctl start mysqld
错误排查:
到这里时有些会报一下错
错误显示:
软件包:mysql-community-server-5.7.20-1.el6.x86_64 (mysql57-community)
需要:libsasl2.so.2()(64bit)
您可以尝试添加 --skip-broken 选项来解决该问题
您可以尝试执行:rpm -Va --nofiles --nodigest
解决方法:
1、修改vim /etc/yum.repos.d/mysql-community.repo 源文件
[mysql57-community]
name=MySQL 5.7 Community Server
## baseurl=http://repo.mysql.com/yum/mysql-5.7-community/el/6/$basearch/
baseurl=http://repo.mysql.com/yum/mysql-5.7-community/el/7/$basearch/
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-mysql
2.yum install mysql-community-server #再次安装mysql
3.systemctl start mysqld #启动mysql
4.systemctl status mysqld #查看mysql启动状态
(4)安装完成后,开始修改初始密码。
执行命令查看文件:
cat /var/log/mysqld.log
找到内容为:A temporary password is generated for root@localhost: h?j39ui0>bEp
后面的随机字符串,即为初始密码,使用初始密码登陆:mysql -hlocalhost -uroot -p ,然后输入随机密码。登陆到msyql客户端命令行。
alter user 'root'@'localhost' identified by 'Password01!';
如果想设置简单密码,则需要修改密码策略。如:修改策略(将策略要求置为LOW,长度要求置为1)
set global validate_password_policy=0;
set global validate_password_length=1;
修改策略后,如果想修改成123456这种简单密码,可以执行:
alter user 'root'@'localhost' identified by '';
备注:其它修改密码的方法
修改MySQL密码方式:
法1:update user set authentication_string=password('123abc') where user='root';
法2:set password=password('newpassword');
法3:alter user root@'localhost' identified by 'oracle';
法4:在shell下使用MySQL工具:mysqladmin -uroot -poldpassword pasword "newpassword"
(5)设置远程访问,登陆mysql客户端后,执行:
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '' WITH GRANT OPTION;
flush privileges;
如需要设置权限 ,如# IP为172.16.52.225的电脑可以使用sindrol用户,密码为abc001远程访问数据库testdb的所有表!可以这样:
GRANT ALL PRIVILEGES ON testdb.* TO 'sindrol'@'172.16.52.225' IDENTIFIED BY 'abc001' WITH GRANT OPTION;
flush privileges;