如何在Ubuntu 18.04系统中安装mysql5.7?相信很多没有经验的人对此束手无策,为此本文总结了问题出现的原因和解决方法,通过这篇文章希望你能解决这个问题。
具体内容如下
1.1安装
首先执行下面三条命令:
# 安装mysql服务 sudo apt-get install mysql-server # 安装客户端 sudo apt install mysql-client # 安装依赖 sudo apt install libmysqlclient-dev # 检查状态 sudo netstat -tap | grep mysql
1.2设置root密码
mysql5.7安装完成后普通用户不能进mysql,原因:root的plugin被修改成了auth_socket,用密码登陆的plugin应该是mysql_native_password,直接用root权限登录就不用密码,修改root密码和登录验证方式:
$ sudo su # mysql mysql> mysql> select user, plugin from mysql.user; +------------------+-----------------------+ | user | plugin | +------------------+-----------------------+ | root | auth_socket | | mysql.session | mysql_native_password | | mysql.sys | mysql_native_password | | debian-sys-maint | mysql_native_password | +------------------+-----------------------+ 4 rows in set (0.00 sec) mysql> update mysql.user set authentication_string=PASSWORD('123456'), plugin='mysql_native_password' where user='root'; mysql> flush privileges; mysql> exit Bye # exit $ sudo /etc/init.d/mysql restart $ mysql -uroot -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 2 Server version: 5.7.22-0ubuntu18.04.1 (Ubuntu) Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql>
1.3配置mysql远程登录
# 修改配置文件,注释掉bind-address = 127.0.0.1 $ sudo vi /etc/mysql/mysql.conf.d/mysqld.cnf # 保存退出,然后进入mysql服务,执行授权命令: $ mysql -uroot -p mysql> grant all on *.* to root@'%' identified by '123456' with grant option; Query OK, 0 rows affected, 1 warning (0.00 sec) mysql> flush privileges; Query OK, 0 rows affected (0.00 sec) mysql> exit Bye $ sudo /etc/init.d/mysql restart
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