Received empty response from Zabbix Agent at [xxx]. Assuming that agent dropped connection because of access permission 和Message from xxxx is missing header. Message ignored.

问题：

zabbix server web 端显示Received empty response from Zabbix Agent at [xxx]. Assuming that agent dropped connection because of access permission.

agent 端log显示Message from xxxx is missing header. Message ignored.

原因定位：server 与agent 版本不一致

解决：将agent 版本安装成与server 一致或者相差不多的版本（这个需要测试）

延伸阅读：

https://www.zabbix.com/forum/zabbix-help/11615-assuming-that-agent-dropped-connection-because-of-access-permissions