1.mysqldump执行时Got error: 1045: Access denied for user 'root'@'localhost' (using password: YES) when trying to connect
解决办法
登录mysql客户端
mysql -hserverip -uroot -p
mysql> use mysql;
Database changed
mysql> update user set password=password('new password') 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)
mysql> quit
2.
C:\Documents and Settings\Administrator>mysqldump -u root -h 174.139.141.170 -
-port 3306 -ppa@170 --opt pa0918|mysql -u root -pmysql -C pa0918
mysqldump: Got error: 1045: Access denied for user 'root'@'183.37.196.40' (using
password: YES) when trying to connect
解决办法：
mysql> GRANT ALL PRIVILEGES ON *.* TO 'root'@'%'IDENTIFIED BY 'root' WITH GRANT OPTION;
Query OK, 0 rows affected
mysql> FLUSH PRIVILEGES;
Query OK, 0 rows affected
解决MySQL不允许从远程访问的方法
解决方法：
1。 改表法。
可能是你的帐号不允许从远程登陆，只能在localhost。这个时候只要在localhost的那台电脑，登入mysql后，更改 "mysql" 数据库里的 "user" 表里的 "host" 项，从"localhost"改称"%"
mysql -u root -pvmwaremysql>use mysql;
mysql>update user set host = % where user = root;
mysql>select host, user from user;
2. 授权法。
例如，你想myuser使用mypassword从任何主机连接到mysql服务器的话。
GRANT ALL PRIVILEGES ON *.* TO myuser@% IDENTIFIED BY mypassword WITH GRANT OPTION;
FLUSH PRIVILEGES;
如果你想允许用户myuser从ip为192.168.1.6的主机连接到mysql服务器，并使用mypassword作为密码
GRANT ALL PRIVILEGES ON *.* TO myuser@192.168.1.3 IDENTIFIED BY mypassword WITH GRANT OPTION;
FLUSH PRIVILEGES;
如果你想允许用户myuser从ip为192.168.1.6的主机连接到mysql服务器的dk数据库，并使用mypassword作为密码
GRANT ALL PRIVILEGES ON dk.* TO myuser@192.168.1.3 IDENTIFIED BY mypassword WITH GRANT OPTION;
FLUSH PRIVILEGES;
我用的第一个方法,刚开始发现不行,在网上查了一下,少执行一个语句 mysql>FLUSH RIVILEGES 使修改生效.就可以了
另外一种方法,不过我没有亲自试过的,在csdn.net上找的,可以看一下.
在安装mysql的机器上运行：
1、d:mysqlin>mysql -h localhost -u root //这样应该可以进入MySQL服务器
2、mysql>GRANT ALL PRIVILEGES ON *.* TO root@% WITH GRANT OPTION //赋予任何主机访问数据的权限
3、mysql>FLUSH PRIVILEGES //修改生效
4、mysql>EXIT //退出MySQL服务器
这样就可以在其它任何的主机上以root身份登录啦！
http://cmm.javaeye.com/blog/766399
http://www.lnicp.com/htmlFiles/20100319185650734.html
