:5666
(TCP)
Medium 风险
NRPE (Nagios Remote Plugin Executor)
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TCP — System & Infrastructure
端口概览
端口号
5666
服务名称
NRPE (Nagios Remote Plugin Executor)
传输协议
TCP
类别
System & Infrastructure
安全风险
Medium
端口范围
已注册 (1024-49151)
什么是端口 5666?
Port 5666 is used by NRPE (Nagios Remote Plugin Executor), an agent that allows Nagios and compatible monitoring systems to execute monitoring plugins on remote Linux/Unix hosts. Nagios checks server health metrics like CPU, memory, and disk usage through NRPE. Misconfigured NRPE allowing command arguments can be exploited for remote command execution.
TCP
System & Infrastructure
常用
安全注意事项
端口5666（NRPE (Nagios Remote Plugin Executor)）被归类为中等风险。虽然此服务通常会暴露，但请在可用时考虑使用加密替代方案。
建议：保持服务更新。监控日志以发现异常活动。