ERROR 1130 (HY000): Host 'test177' is not allowed to connect to this MySQL server

浅浅的花香味﹌ 2023-08-17 16:16 76阅读 0赞

## 异常 ##

在测试环境新搭建的MySQL服务端，启动后登陆MySQL如下异常：

[root@test177 ~]# mysql -u root -po2jSLWw0ni -h test177
    mysql: [Warning] Using a password on the command line interface can be insecure.
    ERROR 1130 (HY000): Host 'test177' is not allowed to connect to this MySQL server

由于不能改变`hostname`，所以只能通过跳过数据库权限验证，来修改权限。

首先停止MySQL服务端

systemctl stop mysqld

在`/etc/my.cnf`中的`[mysqld]`选项中添加跳过验证策略`skip-grant-tables`，my.cnf文件内容如下：

# For advice on how to change settings please see
    # http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html
    
    [mysqld]
    #
    # Remove leading # and set to the amount of RAM for the most important data
    # cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.
    # innodb_buffer_pool_size = 128M
    #
    # Remove leading # to turn on a very important data integrity option: logging
    # changes to the binary log between backups.
    # log_bin
    #
    # Remove leading # to set options mainly useful for reporting servers.
    # The server defaults are faster for transactions and fast SELECTs.
    # Adjust sizes as needed, experiment to find the optimal values.
    # join_buffer_size = 128M
    # sort_buffer_size = 2M
    # read_rnd_buffer_size = 2M
    datadir=/var/lib/mysql
    socket=/var/lib/mysql/mysql.sock
    
    # Disabling symbolic-links is recommended to prevent assorted security risks
    symbolic-links=0
    
    log-error=/var/log/mysqld.log
    pid-file=/var/run/mysqld/mysqld.pid
    skip-grant-tables

然后重新启动MySQL服务：

systemctl start mysqld

登陆数据库，通过以下两种方法修改权限：

### 通过表修改 ###

use mysql;
    update user set host = '%' where user = 'root' and host='localhost';
    select host, user from user;

### 通过授权 ###

GRANT ALL PRIVILEGES ON *.* TO 'account_name'@'%' IDENTIFIED BY 'password' WITH GRANT OPTION;
    FLUSH   PRIVILEGES;

转载于:https://www.cnblogs.com/linga/p/11457972.html