在服务器上安装好mysql之后,一般都需要做下面几件事情:
1. 启动mysql server
2. 设置root用户和添加一些访问用户
3. 设置用户权限
4. 配置非本地连接访问
5. 备份数据或者迁移数据
6. 一些注意事项(不断更新)
一、启动mysql server
通常情况下,我们使用的启动命令是:
复制代码 代码如下:service mysqld start
常见的一个问题就是抛:Timeout error occurred trying to start MySQL Daemon
解决的办法也很简单:直接执行即可
复制代码 代码如下:/usr/bin/mysql_install_db
目录可能会不一样,这个默认安装一般就在这里。
查看mysql的服务状态:
复制代码 代码如下:
/etc/rc.d/init.d/mysqld status
二、设置root用户和添加一些访问用户
默认安装后,mysql的root账户是没有密码的。一般为了安全,都会给root设置一个密码:
复制代码 代码如下:
mysql> update user set password=PASSWORD('123456′) where User='root';
Query OK, 4 rows affected (0.00 sec)
Rows matched: 4 Changed: 4 Warnings: 0
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)
三、设置用户权限
当然,mysql是提供给用户使用的,需要新增一个用户给大家使用:
复制代码 代码如下:
mysql> insert into mysql.user(Host,User,Password) values(‘localhost','admin',password(“admin”));
Query OK, 1 row affected, 3 warnings (0.01 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
现在新增了一个用户 admin/admin, 但是用户暂时还没有分配任何的权限。
复制代码 代码如下:
mysql> grant ALL on *.* to admin@”%” Identified by “admin”;
Query OK, 0 rows affected (0.00 sec)
%代表任何主机,当然也可以只赋予:select,insert,update,delete 这些操作权限:
复制代码 代码如下:
mysql> grant select,insert,update,delete on *.* to admin@”%” Identified by “admin”;
Query OK, 0 rows affected (0.00 sec)
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)
四、配置非本地连接访问
默认情况下,远程用户访问本地的数据库是不背允许的,需要执行命令,赋予任何主机或相关主机访问数据的权限:
复制代码 代码如下:
mysql> update user set host = ‘%' where user = ‘admin';
在任何主机上都可以使用admin这个用户访问数据。
或者:
复制代码 代码如下:
mysql> GRANT ALL PRIVILEGES ON *.* TO ‘root'@'%' WITH GRANT OPTION
五、备份数据或者迁移数据
一般使用mysqldump比较方便
六、注意事项
linux下mysql默认表名是要区分大小写的,如果需要改称不区分大小写的,需要按下面步骤修改。
1). 用root登录,修改 /etc/my.cnf
2). 在[mysqld]下加入一行: lower_case_table_names=1
3). 重新启动数据库即可

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