Mysql 本地主机！= 127.0.0.1? [英] Mysql localhost != 127.0.0.1?
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问题描述
$ mysql -u root -h 127.0.0.1 -e 'show tables' created_from_host;
+-----------------------------+
| Tables_in_created_from_host |
+-----------------------------+
| test |
+-----------------------------+
$ mysql -u root -h localhost -e 'show tables' created_from_host;
ERROR 1049 (42000): Unknown database 'created_from_host'
$ cat /etc/hosts
127.0.0.1 localhost.localdomain localhost
127.0.0.1 localhost
::1 localhost6.localdomain6 localhost6
怎么可能?和主要问题 - 如何从所有主机为 root 授予对所有数据库的所有权限?
How could it be? And main question - how to grant ALL privileges on ALL databases from ALL hosts for root?
UPD:
$ mysql -u root -h 127.0.0.1 -pzenoss -e "show grants";
+----------------------------------------------------------------------------------------------------------------------------------------+
| Grants for root@localhost |
+----------------------------------------------------------------------------------------------------------------------------------------+
| GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' IDENTIFIED BY PASSWORD '*3715D7F2B0C1D26D72357829DF94B81731174B8C' WITH GRANT OPTION |
| GRANT PROXY ON ''@'' TO 'root'@'localhost' WITH GRANT OPTION |
+----------------------------------------------------------------------------------------------------------------------------------------+
$ mysql -u root -h localhost -pzenoss -e "show grants";
+----------------------------------------------------------------------------------------------------------------------------------------+
| Grants for root@localhost |
+----------------------------------------------------------------------------------------------------------------------------------------+
| GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' IDENTIFIED BY PASSWORD '*3715D7F2B0C1D26D72357829DF94B81731174B8C' WITH GRANT OPTION |
| GRANT PROXY ON ''@'' TO 'root'@'localhost' WITH GRANT OPTION |
+----------------------------------------------------------------------------------------------------------------------------------------+
UPD2:
zends> SHOW GLOBAL VARIABLES LIKE 'skip_networking';
+-----------------+-------+
| Variable_name | Value |
+-----------------+-------+
| skip_networking | OFF |
+-----------------+-------+
1 row in set (0.00 sec)
zends> SELECT user,host FROM mysql.user WHERE user='root';
+------+-----------------------+
| user | host |
+------+-----------------------+
| root | 127.0.0.1 |
| root | ::1 |
| root | localhost |
| root | localhost.localdomain |
+------+-----------------------+
4 rows in set (0.00 sec)
推荐答案
如您所见 此处，如果在没有主机名或主机名 localhost 的情况下使用，UNIX mysqld 将使用套接字.
As you can see here, a UNIX mysqld uses sockets if used without a host name or with the host name localhost.
所以它有所作为，而在 GRANT 系统中，这种差异变得明显.
So it makes a difference, and in the GRANT system this difference becomes evident.
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