message from server:"Host '192.168.0.117'is blockedbecausemanyconnection errors;unblock with 'mysqladmin flush-hosts"

这个错误信息是MySQL数据库服务器返回的错误消息，意思是由于连接错误过多，导致IP地址为'192.168.0.117'的主机被阻止访问。要解除阻止，可以使用'mysqladmin flush-hosts'命令。

'mysqladmin flush-hosts'命令用于清除MySQL服务器的主机缓存，这样可以解除被阻止的主机。执行该命令后，MySQL服务器将重新允许来自该主机的连接。

相关问题:
1. 为什么会出现连接错误导致主机被阻止的情况？
2. 如何避免出现连接错误过多的情况？
3. 还有其他方法可以解除被阻止的主机吗？

相关问题

message from server: "Host '192.168.55.122' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'"

根据引用，错误信息"Host '192.168.55.122' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'"是由于该IP地址在连接数据库时出现了多个连接错误，导致被阻塞。这可能是由于短时间内产生了太多中断的数据库连接，超过了MySQL数据库的max_connection_errors设置。解决此问题的方法如下：

1. 提高允许的max_connection_errors数量：可以通过命令"show variables like '%max_connection_errors%'"查看当前的max_connection_errors值，默认为10。您可以使用命令"set global max_connect_errors = 1000;"将max_connection_errors的数量修改为1000（立即生效），或者在my.cnf配置文件中的部分添加"max_connect_errors = 1000"（重启MySQL后生效）。

2. 重置错误记录数：可以使用命令"mysql> flush hosts;"来重置错误记录数。这将清除被阻塞的IP地址的连接错误记录，使其能够重新连接到MySQL数据库。

请注意，以上方法只是治标不治本，首先需要找到导致连接错误的原因，并进行修复，以避免继续产生连接错误。<em>1</em><em>2</em><em>3</em>
#### 引用[.reference_title]
- *1* [message from server: "Host '192.168.1.9' is blocked because of many connection errors; unblock with](https://blog.csdn.net/sakuragio/article/details/101614100)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT3_1"}} ] [.reference_item]
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null, message from server: "Host '192.168.208.1' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'"

这个错误意味着由于在短时间内产生了太多的中断的数据库连接，所以IP地址为"192.168.208.1"的主机被阻止访问MySQL数据库。为了解决这个问题，有几种方法可以尝试。首先可以登录到MySQL数据库，使用root用户提高允许的max_connection_errors数量。可以通过以下几个步骤来完成这个过程：首先，使用命令"show variables like 'max_connection_errors';"来查看当前的max_connection_errors数量。然后，使用命令"set global max_connect_errors = 1000;"将max_connection_errors的数量设置为1000。接下来，使用命令"set global max_connections = 1000;"将max_connections的数量也设置为1000。最后，使用命令"mysql> flush-hosts;"清理一下hosts文件。下面添加"max_connect_errors=1000"这一行，然后重启MySQL服务。这样一来，应该就能解除对"192.168.208.1"主机的阻止了。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *3* [连接mysql提示被锁,“Host ‘xx‘ is blocked because of many connection errors； unblock with ...](https://blog.csdn.net/hailishen/article/details/127915511)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
- *2* [Host is blocked because of many connection errors； unblock with ‘mysqladmin flush-hosts’](https://blog.csdn.net/qq_34709656/article/details/122131176)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 50%"]
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