首先让我提一下,我已经看了很多建议的问题,但没有找到相关的答案。这就是我正在做的。

我连接到Amazon EC2实例。我可以用这个命令登录MySQL根目录:

mysql -u root -p

然后我用host %创建了一个新的用户帐单

CREATE USER 'bill'@'%' IDENTIFIED BY 'passpass';

授予用户bill的所有权限:

grant all privileges on *.* to 'bill'@'%' with grant option;

然后我退出root用户,尝试用bill登录:

mysql -u bill -p

输入正确的密码并得到以下错误:

错误1045(28000):用户“账单”@“localhost”(使用密码:YES)的访问被拒绝


当前回答

好吧,我不确定,但可能是mysql安装目录中的my.cnf文件是罪魁祸首。 注释掉这一行,问题就可以解决了。

bind-address = 127.0.0.1

其他回答

sudo -i 
mysql -u root
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'root';

访问mysql服务不需要登录(可以看到因为在shell mysql>)

好吧,我不确定,但可能是mysql安装目录中的my.cnf文件是罪魁祸首。 注释掉这一行,问题就可以解决了。

bind-address = 127.0.0.1

百分号表示所有ip,所以localhost是多余的…本地主机不需要第二条记录。

实际上有,'localhost'在mysql中是特殊的,它意味着通过unix套接字(或windows上的命名管道)连接,而不是TCP/IP套接字。使用%作为主机不包括'localhost'

MySQL用户帐户有两个组成部分:用户名和主机名。用户名标识用户,主机名指定用户可以从哪些主机连接。用户名和主机名的组合:

< user_name >的@ < host_name >的 您可以为主机名指定特定的IP地址或地址范围,或者使用百分比字符(“%”)使该用户能够从任何主机登录。

注意,用户帐户是由用户名和主机名同时定义的。例如,“root”@“%”与“root”@“localhost”是不同的用户帐户。

我通过删除旧的错误用户“账单”条目来解决这个问题(这是重要的部分:都来自mysql。用户和mysql.db),然后创建和前面一样的用户:

FLUSH PRIVILEGES;
CREATE USER bill@localhost IDENTIFIED BY 'passpass';
grant all privileges on *.* to bill@localhost with grant option;
FLUSH PRIVILEGES;

工作完毕,用户正在连接。现在我将删除一些特权从它:)

I discovered yet another case that appears on the surface to be an edge case; I can export to the file system, via SELECT INTO .. OUTFILE as root, but not as regular user. While this may be a matter of permissions, I've looked at that, and see nothing especially obvious. All I can say is that executing the query as a regular user who has all permissions on the data base in question returns the access denied error that led me to this topic. When I found the transcript of a successful use of SELECT INTO … OUTFILE in an old project, I noticed that I was logged in as root. Sure enough, when I logged in as root, the query ran as expected.