centos7安装Mysql
1. 下载 MySQL yum包
wget http://repo.mysql.com/mysql57-community-release-el7-10.noarch.rpm
2.安装MySQL源
rpm -Uvh mysql57-community-release-el7-10.noarch.rpm
3.安装MySQL服务端,需要等待一些时间
yum install -y mysql-community-server
4.启动MySQL
systemctl start mysqld.service
5.检查是否启动成功
systemctl status mysqld.service
6.获取临时密码,MySQL5.7为root用户随机生成了一个密码
冒号后面的是随机密码
grep 'temporary password' /var/log/mysqld.log
7.通过临时密码登录MySQL,进行修改密码操作
mysql -uroot -p
使用临时密码登录后,不能进行其他的操作,否则会报错,这时候我们进行修改密码操作
8.因为MySQL的密码规则需要很复杂,我们一般自己设置的不会设置成这样,所以我们全局修改一下
mysql> set global validate_password_policy=0;
mysql> set global validate_password_length=1;
这时候我们就可以自己设置想要的密码了
ALTER USER 'root'@'localhost' IDENTIFIED BY 'yourpassword';
9.授权其他机器远程登录
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY 'yourpassword' WITH GRANT OPTION;
FLUSH PRIVILEGES;
10.开启开机自启动
先退出mysql命令行,然后输入以下命令
systemctl enable mysqld
systemctl daemon-reload
11.设置MySQL的字符集为UTF-8,令其支持中文
vim /etc/my.cnf
改成如下,然后保存
# For advice on how to change settings please see
# http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html
[mysql]
default-character-set=utf8
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
character_set_server=utf8
symbolic-links=0
log-error=/var/log/mysqld.log
pid-file=/var/run/mysqld/mysqld.pid
12.重启一下MySQL,令配置生效
service mysqld restart
13.防火墙开放3306端口
firewall-cmd --state
firewall-cmd --zone=public --add-port=3306/tcp --permanent
firewall-cmd --reload