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mysql>use mysql;
mysql>update user set host='%' where user='root';
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sudo /etc/init.d/mysql restart
[sudo] password for wangzw:
*Stopping MySQL database server mysqld                          [OK]
*Starting  MySQL database server mysqld                          [OK]
*Checking for corrupt, not cleanly closed and updatade needing tables.


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[client]
port=3306
[mysql]
default-character-set=gb2312
# The default character set that will be used when a new
schema or table is
# created and
n ......

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DROP TABLE IF EXISTS `user`;
CREATE TABLE `user` (
  `ID` int(11) NOT NULL auto_increment,
  `NAME` varchar(16) NOT NULL default '',
  `REMARK` varchar(16) NOT NULL default '',
  PRIMARY KEY  (`ID`)
) ENGINE=InnoDB AUTO_INCREMENT=24 DEFAULT CHARSET=utf8;
&nb ......

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access denied for user 'root'@'localhost' (using password: YES);
½ñÌìÓÃmysqlµÄʱºò£¬µÇ¼µÄʱºò³öÏÖÁËÕâ¾ä£¬²»ÖªµÀÊÇʲôÒâ˼£¬ÒòΪÎÒµÄmysqlÊÇ×°centosµÄʱºòÒ»Æð×°µÄ£¬ÃÜÂëÎÒ¾ÍÊäÈëÎÒµÄÕÊ»§ÃÜÂ룬½á¹û³öÏÖÁËÉÏÃæÄǾ䣻°Ù¶ÈÁËһϣ¬»¹Õæ²»ÉÙÈ˳öÏÖÁËÕâ¸öÎÊÌâ¡£¡£×îºóÎÒÕÒµ½ÁË·½·¨£»
[root@localhost home]# mysql - ......

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/etc/init.d/mysql start (stop) ΪÆô¶¯ºÍÍ£Ö¹·þÎñÆ÷
/etc/mysql/ Ö÷ÒªÅäÖÃÎļþËùÔÚλÖà my.cnf
/var/lib/mysql/ ·ÅÖõÄÊÇÊý¾Ý¿â±íÎļþ¼Ð£¬ÕâÀïµÄmysqlÏ൱ÓÚwindowsÏÂmysqlµÄdateÎļþ¼Ð
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isher@isher-ubuntu:~$ mysql -u root
>show variables like 'character%'; #Ö´ÐбàÂëÏ ......
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