Is port 9100 (JetDirect / Node Exporter) dangerous?

Port 9100 is classified as medium risk. It is commonly exposed but consider using encrypted alternatives where available and monitor activity.

Should port 9100 be open on my firewall?

Port 9100 can be open but should be monitored closely. Keep the service updated and prefer encrypted alternatives where available.

Port 9100 (JetDirect / Node Exporter) uses the TCP transport protocol and falls under the System & Infrastructure category.

:9100 (TCP)

Medium 风险

TCP — System & Infrastructure

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端口号 9100

服务名称 JetDirect / Node Exporter

传输协议 TCP

类别 System & Infrastructure

安全风险 Medium

端口范围已注册 (1024-49151)

HP JetDirect for network printing and Prometheus Node Exporter for system metrics collection. Two common but unrelated services share this port.

TCP System & Infrastructure

端口9100（JetDirect / Node Exporter）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。