mysql给root开启远程访问权限,修改root密码
1.MySql-Server 出于安全方面考虑只允许本机(localhost, 127.0.0.1)来连接访问. 这对于 Web-Server 与 MySql-Server 都在同一台服务器上的网站架构来说是没有问题的. 但随着网站流量的增加, 后期服务器架构可能会将 Web-Server 与 MySql-Server 分别放在独立
1.MySql-Server 出于安全方面考虑只允许本机(localhost, 127.0.0.1)来连接访问. 这对于 Web-Server 与 MySql-Server 都在同一台服务器上的网站架构来说是没有问题的. 但随着网站流量的增加, 后期服务器架构可能会将 Web-Server 与 MySql-Server 分别放在独立的服务器上, 以便得到更大性能的提升, 此时 MySql-Server 就要修改成允许 Web-Server 进行远程连接.
2.不用每次都登到服务器去添加修改表,只要用图形化界面即可远程管理。
我们可以按照下面的步骤修改:
1, 登录 Mysql-Server 连接本地 mysql (默认只允许本地连接)
2, 修改 Mysql-Server 用户配置
mysql> USE mysql; --<span> 切换到 mysql DB Database changed mysql</span>> SELECT User, Password, Host FROM user; --<span> 查看现有用户,密码及允许连接的主机 </span>+------+----------+-----------+ | User | Password | Host | +------+----------+-----------+ | root | | localhost | +------+----------+-----------+ <span>1</span> row <span>in</span> <span>set</span> (<span>0.00</span><span> sec) mysql</span>> --<span> 只有一个默认的 root 用户, 密码为空, 只允许 localhost 连接 </span><span>12</span><span> mysql</span>> -- 下面我们另外添加一个新的 root 用户, 密码为空, 只允许 <span>192.168</span>.<span>1.100</span><span> 连接 mysql</span>> GRANT ALL PRIVILEGES ON *.* TO <span>'</span><span>root</span><span>'</span>@<span>'</span><span>192.168.1.100</span><span>'</span> IDENTIFIED BY <span>''</span><span> WITH GRANT OPTION; mysql</span>> -- @<span>'</span><span>192.168.1.100</span><span>'</span>可以替换为@‘%<span>’就可任意ip访问,当然我们也可以直接用 UPDATE 更新 root 用户 Host, 但不推荐, SQL如下: mysql</span>> -- UPDATE user SET Host=<span>'</span><span>192.168.1.100</span><span>'</span> WHERE User=<span>'</span><span>root</span><span>'</span> AND Host=<span>'</span><span>localhost</span><span>'</span> LIMIT <span>1</span>;<br><br><span>mysql> flush privileges;</span><br><br><span>Query OK, 0 rows affected (0.00 sec)</span>
修改root密码
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