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mysql 安装使用小记_MySQL

Jun 01, 2016 pm 01:51 PM
mysql Install Configuration file

在mysql网站时拿到的rpm包只能用root安装,不支持relocate用源码安装后./configure --prefix=/home/chenlei/usr/mysqlmy-small.cnf是配置文件
./mysql_install_db --defaults-file=../share/mysql/my-small.cnf --user=chenlei  这时候在/home/chenlei/usr/mysql/var下面会产生下面几个文件:ibdata1  ib_logfile0  ib_logfile1  mysql  qabst137024.err  testibdata1是数据文件ib_logfile0  ib_logfile1 是日志文件mysql test是默认建立的两个数据库XXXXXX.err 是错误日志
./mysqld_safe --defaults-file=../share/mysql/my-small.cnf --user=chenlei &   
允许所有用户访问./mysql -urootgrant all PRIVILEGES on *.* to chenlei@'%'; 

 

 

开启 MySQL 的远程登陆帐号有两大步:

1、确定服务器上的防火墙没有阻止 3306 端口。

MySQL 默认的端口是 3306 ,需要确定防火墙没有阻止 3306 端口,否则远程是无法通过 3306 端口连接到 MySQL 的。

如果您在安装 MySQL 时指定了其他端口,请在防火墙中开启您指定的 MySQL 使用的端口号。

如果不知道怎样设置您的服务器上的防火墙,请向您的服务器管理员咨询。

2、增加允许远程连接 MySQL 用户并授权。

1)首先以 root 帐户登陆 MySQL

在 Windows 主机中点击开始菜单,运行,输入“cmd”,进入控制台,MySQL 的 bin 目录下,然后输入下面的命令。

在 Linux 主机中在命令提示行下输入下面的命令。

    CODE: [COPY]
  • > MySQL -uroot -p123456

123456 为 root 用户的密码。

2)创建远程登陆用户并授权

    CODE: [COPY]
  • > grant all PRIVILEGES on discuz.* to ted@'123.123.123.123' identified by '123456';

上面的语句表示将 discuz 数据库的所有权限授权给 ted 这个用户,允许 ted 用户在 123.123.123.123 这个 IP 进行远程登陆,并设置 ted 用户的密码为 123456 。

下面逐一分析所有的参数:

all PRIVILEGES 表示赋予所有的权限给指定用户,这里也可以替换为赋予某一具体的权限,例如:select,insert,update,delete,create,drop 等,具体权限间用“,”半角逗号分隔。

discuz.* 表示上面的权限是针对于哪个表的,discuz 指的是数据库,后面的 * 表示对于所有的表,由此可以推理出:对于全部数据库的全部表授权为“*.*”,对于某一数据库的全部表授权为“数据库名.*”,对于某一数据库的某一表授权为“数据库名.表名”。

ted 表示你要给哪个用户授权,这个用户可以是存在的用户,也可以是不存在的用户。

123.123.123.123 表示允许远程连接的 IP 地址,如果想不限制链接的 IP 则设置为“%”即可。

123456 为用户的密码。

执行了上面的语句后,再执行下面的语句,方可立即生效。

    CODE: [COPY]
  • > flush privileges;
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