Ubuntu下安装MySql并在外网连接_MySQL
纯新手教程。
1.安装mysqlapt-get install mysql-server mysql-client libmysqlclient15-dev
安装过程中会提示为数据库root账户设置密码,输入两边密码即可
2、进入
mysql mysql -uroot -p
3、重新设置mysql用户root的密码
GRANT ALL PRIVILEGES ON *.* TO root@localhost IDENTIFIED BY "123456";
4、创建新数据库 proxy
create database proxy;
5、创建用户test 对proxy库有全部操作权限
grant all privileges on proxy.* to test@localhost identified by "testpwd";
6、允许test用户可以从任意机器上登入MySQL
grant all privileges on proxy.* to test@"%" identified by "testpwd";
7、退出mysql
exit
8、mysql安装完成后默认监听的地址是127.0.0.1,端口是3306。可以通过以下命令看到其监听的地址以及端口:
netstat -ntulp
9、如果监听的是127.0.0.1,那么从外网是连不上数据库的。这时可以修改监听的地址为0.0.0.0:
sudo vim /etc/mysql/my.cnf
找到bind-address=127.0.0.1这一行,将127.0.0.1改为0.0.0.0,保存退出
10、重启mysql,使配置生效
service mysql restart
现在应该就可以在远程用MySql_Front或者phpmyadmin远程连接mysql数据库了。只不过只能用刚授权过的test账户远程登录。root账户默认是禁止远程登录数据库的。可以用以下两种办法来允许root账户远程登录数据库:
(1). 改表法。
可能是你的帐号不允许从远程登陆,只能在localhost。这个时候只要在localhost的那台电脑,登入mysql后,更改 "mysql" 数据库里的 "user" 表里的 "host" 项,从"localhost"改称"%"
<pre name="code" class="sql">mysql -u root -p mysql>use mysql; mysql>update user set host = '%' where user = 'root'; mysql>select host, user from user;
(2).授权法。
例如,你想myuser使用mypassword从任何主机连接到mysql服务器的话:
GRANT ALL PRIVILEGES ON *.* TO 'myuser'@'%' IDENTIFIED BY 'mypassword' WITH GRANT OPTION;
GRANT ALL PRIVILEGES ON *.* TO 'myuser'@'192.168.1.3' IDENTIFIED BY 'mypassword' WITH GRANT OPTION;
如果考虑到安全性的问题,又想禁止root账户远程登录mysql数据库:
delete from user where user = 'root' and host = '%'; select host, user from user; flush privileges;

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