新安装的MySQL的简单配置

修改配置文件

　

bind-address = 10.6.20.1
port = 3306
character_set_server = utf8
max_connect_errors = 1000000
max_connections = 500
datadir = /data/mysql
log-error = /var/log/mysql/mysql-error.log-error
skip_name_resolve
back_log = 2000
log-bin = /data/mysql
binlog-format = MIXED
expire_logs_days = 2

　　

　

bind-address：监听的IP地址

max_connect_errors：最大允许错误次数(注：是访问协议错误，若某个IP错误次数达到该阈值，则被屏蔽)

max_connections ：最大连接数(能同时访问server的连接个数，若达到该阈值，则不能再连接到server)

skip_name_resolve ：跳过域名反解

back_log ：创建TCP连接时，允许的最大同时未完成的连接个数

expire_logs_days ：binlog的保留天数

注：

datadir和log-error和log-bin等对应目录需要确保已创建，并且权限为mysql所有。

例如：

mkdir -p /data/mysql

chown -R mysql.mysql /data/mysql

 

mkdir -p /var/log/mysql

chown -R mysql.mysql /var/log/mysql

 

配置完成后，启动mysql:

/etc/init.d/mysqld start

 

 mysql> SELECT user,host FROM MYSQL.USER;

+------+-----------+
| user | host      |
+------+-----------+
| root | 127.0.0.1 |
| root | ::1       |
|      | localhost |
| root | localhost |
+------+-----------+
4 rows in set (0.00 sec)

mysql> DROP USER ''@localhost;
Query OK, 0 rows affected (0.25 sec)

mysql> DROP USER 'root'@'::1';
Query OK, 0 rows affected (0.00 sec) 

mysql> SELECT user,host FROM MYSQL.USER;
+------+-----------+
| user | host      |
+------+-----------+
| root | 127.0.0.1 |
| root | localhost |
+------+-----------+
2 rows in set (0.00 sec)

　　

为root用户赋予密码：

mysql> UPDATE mysql.user SET password = PASSWORD('newpassword') WHERE user = 'root';
Query OK, 0 rows affected (0.00 sec)
Rows matched: 3 Changed: 0 Warnings: 0

mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.00 sec)

mysql> quit
Bye