Is port 4369 (EPMD (Erlang Port Mapper)) dangerous?

Port 4369 is classified as high risk. It is a common target for automated scanning and brute-force attacks. Restrict access to trusted IPs if exposure is necessary.

Should port 4369 be open on my firewall?

Port 4369 should only be open with strict firewall rules whitelisting trusted IP addresses. Enable rate limiting and intrusion detection systems.

What transport protocol does port 4369 use?

Port 4369 (EPMD (Erlang Port Mapper)) uses the TCP transport protocol and falls under the Messaging category.

:4369 (TCP)

EPMD (Erlang Port Mapper)

High 风险

TCP — Messaging

端口概览

端口号 4369

服务名称 EPMD (Erlang Port Mapper)

传输协议 TCP

类别 Messaging

安全风险 High

端口范围已注册 (1024-49151)

什么是端口 4369?

Port 4369 is used by EPMD (Erlang Port Mapper Daemon), a port mapper service for Erlang/OTP distributed systems. RabbitMQ and other Erlang-based applications rely on EPMD for node discovery and cluster formation. Exposure of this port can allow attackers to enumerate Erlang cluster nodes and potentially join the cluster.

TCP Messaging 常用

安全注意事项

端口4369（EPMD (Erlang Port Mapper)）被归类为高风险。此端口是自动扫描和暴力破解攻击的常见目标。如必须暴露，请将访问限制为已知IP地址。

建议：使用防火墙规则将可信IP列入白名单。启用速率限制和入侵检测。

EPMD (Erlang Port Mapper)

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端口概览

什么是端口 4369?

安全注意事项

相关端口 — Messaging

相关术语