目录 mysql grant all privileges on赋给用户远程权限 mysql授权语句说明grant all privileges、创建用户、删除用户 总结 mysql grant all privileges on赋给用户远程权限 mysql中grant all privileges on赋给用户远
目录mysql grant all privileges on赋给用户远程权限mysql授权语句说明grant all privileges、创建用户、删除用户总结
mysql grant all privileges on赋给用户远程权限
mysql中grant all privileges on赋给用户远程权限
改表法。
当你的帐号不允许从远程登陆,只能在localhost连接时。这个时候只要在mysql服务器上,更改 mysql 数据库里的 user 表里的 host 项,从localhost"改成%即可实现用户远程登录
在安装mysql的机器上运行:
1. mysql -u root -p
2. select host,user from user where user='root';
3. update user set host = '%' where user='root' and host='localhost';
4. select host, user from user where user='root';
授权法[root@aaa-server ~]# mysql -u root -p
MariaDB [(none)]> grant all privileges on *.* to root@'%' identified by '123' with grant option;
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> flush privileges;
Query OK, 0 rows affected (0.01 sec)
MariaDB [(none)]> flush privileges;
Query OK, 0 rows affected (0.00 sec)
MariaDB [(none)]> exit
Bye
授权法。
例如,你想user使用mypwd从任何主机连接到mysql服务器的话。
在安装mysql的机器上运行:
1. GRANT ALL PRIVILEGES ON *.* TO 'user'@'%' IDENTIFIED BY 'mypwd' WITH
GRANT OPTION;
2.FLUSH PRIVILEGES;
模板:
grant all privileges on 库名.表名 to '用户名'@'IP地址' identified by '密码' with grant option;
flush privileges;
如果你想允许用户user从ip为192.168.1.4的主机连接到mysql服务器,并使用mypwd作为密码
在安装mysql的机器上运行:
GRANT ALL PRIVILEGES ON *.* TO 'user'@'192.168.1.3' IDENTIFIED BY 'mypwd' WITH GRANT OPTION;
FLUSH PRIVILEGES;
注意授权后必须FLUSH PRIVILEGES;否则无法立即生效。
高版本数据库不能按照grant all privileges on *.* to "root"@"%" identified by "xxxx";去修改用户权限
mysql> SELECT @@VERSION;
+-----------+
| @@VERSION |
+-----------+
| 8.0.14 |
+-----------+
1 row in set (0.00 sec)
高版本修改用户权限方法:
# 先创建远程用户,再授权
mysql> create user 'root'@'%' identified by 'password';
Query OK, 0 rows affected (0.03 sec)
mysql> grant all privileges on *.* to 'root'@'%' with grant option;
Query OK, 0 rows affected (0.01 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
再次查看发现有了root %
mysql> select User,Host from user;
+------------------+-----------+
| User | Host |
+------------------+-----------+
| root | % |
| mysql.infoschema | localhost |
| mysql.session | localhost |
| mysql.sys | localhost |
| root | localhost |
+------------------+-----------+
5 rows in set (0.00 sec)
————————————————
mysql授权语句说明grant all privileges、创建用户、删除用户
mysql的赋权语句:
grant all privileges on *.* to 'root'@'%' identified by '123456' with grant option;
all privileges ==》 表示所有的权限 ,增删改查权限全部都有了*.* ==> 所有的数据库下面所有的表root@% ==》 所有数据库下面所有的表,所有的权限,全部都给root用户 % 表示root用户可以在任意机器上面进行连接登录identified by '123456' ==》远程登录连接的密码
刷新权限列表:flush privileges
CREATE DATABASE 数据库名;
CREATE USER '用户名'@'%' IDENTIFIED BY '密码';
GRANT all privileges ON 数据库名.* to '用户名'@'%' identified by '密码' WITH GRANT OPTION;
flush privileges;
创建用户:CREATE USER 'jack'@'localhost' IDENTIFIED BY 'test123';
查看数据库中已经创建的用户:select user,host from user;--user表在数据库自带的、名字为mysql的数据库中
删除用户:delete from user where user = 'jack';
drop user ‘jack'@'%';
drop user 会将该用户的信息全部删掉,而 delete 只会清除user表,其他的比如db表中的信息还是存在。
清除缓存:FLUSH PRIVILEGES
总结
以上为个人经验,希望能给大家一个参考,也希望大家多多支持每日运维。