Centos安装和配置Mysql5.7
第一步:下载和安装mysql源
先下载 mysql源安装包
[root@localhost ~]# wget https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm -bash: wget: 未找到命令
我们先安装下wget
yum -y install wget
然后执行
wget https://dev.mysql.com/get/mysql57-community-release-el7-11.noarch.rpm
安装mysql源
yum -y localinstall mysql57-community-release-el7-11.noarch.rpm
第二步:在线安装Mysql
yum -y install mysql-community-server
下载的东西比较多 要稍微等会;
第三步:启动Mysql服务
systemctl start mysqld
设置开机启动
[root@localhost ~]# systemctl enable mysqld [root@localhost ~]# systemctl daemon-reload
第四步:修改root本地登录密码
mysql安装完成之后,在/var/log/mysqld.log文件中给root生成了一个临时的默认密码。
[root@localhost ~]# vi /var/log/mysqld.log
[root@localhost ~]# mysql -u root -p Enter password:
输入临时密码 进入mysql命令行;
ALTER USER 'root'@'localhost' IDENTIFIED BY 'root';// 若报错 set global validate_password_policy=0; set global validate_password_length=4; ALTER USER 'root'@'localhost' IDENTIFIED BY 'root’;
第五步:设置允许远程登录
Mysql默认不允许远程登录,我们需要设置下,并且防火墙开放3306端口;
mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'root' WITH GRANT OPTION; Query OK, 0 rows affected, 1 warning (0.01 sec) mysql> exit; Bye
退出下;
[root@localhost ~]# firewall-cmd --zone=public --add-port=3306/tcp --permanent success [root@localhost ~]# firewall-cmd --reload success
第六步:配置默认编码为utf8
[root@localhost ~]# vi /etc/my.cnf
修改/etc/my.cnf配置文件,在[mysqld]下添加编码配置,如下所示:
[mysqld] character_set_server=utf8 init_connect='SET NAMES utf8'
自此已无大碍!