安装方式
一、安装
1.下载mysql源安装包,更新检索秘钥
wget http://dev.mysql.com/get/mysql57-community-release-el7-8.noarch.rpm
rpm --import https://repo.mysql.com/RPM-GPG-KEY-mysql-2022
2.安装mysql源
yum localinstall mysql57-community-release-el7-8.noarch.rpm
3.检测源是否安装成功,显示如图即安装成功
yum repolist enabled | grep "mysql.*-community.*"
4.安装mysql服务
yum install mysql-community-server
5.开启mysql,查看mysql状态。如图即开启成功
systemctl start mysqld
systemctl status mysqld
6.查看默认密码
grep 'temporary password' /var/log/mysqld.log
7.登录mysql
#密码为上一步的默认密码
mysql -uroot -p
8.第一次登录需修改密码–(尽量复杂点,太简单容易修改不成功)
set password for 'root'@'localhost'=password('新密码');
9.开放远程权限
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' IDENTIFIED BY '密码' WITH GRANT OPTION; #开放远程权限
FLUSH PRIVILEGES; #刷新立即生效
systemctl restart mysqld #重启mysql
systemctl stop firewalld #关闭防火墙
10.使用Navicat测试连接–(连接前注意关闭防火墙或者开放3306
端口)
#1. 关闭防火墙
systemctl stop firewalld
#2. 防火墙开放3306端口
firewall-cmd --zone=public --add-port=3306/tcp --permanent
systemctl restart firewalld //重启
设置开机自启
systemctl enable mysqld
systemctl daemon-reload
查看版本及各文件目录
1. 版本查看
mysql -V #方法一
rpm -qa | grep mysql #方法二
2.查看各文件路径
#先用rpm -qa查出mysql-community-server,再用rpm -ql查mysql-community-server即可
rpm -qa | grep mysql
rpm -ql mysql-community-server-5.7.41-1.el7.x86_64