:4000
(TCP/UDP)
Medium 风险
ICQ / Diablo II
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TCP/UDP — Messaging
端口概览
端口号
4000
服务名称
ICQ / Diablo II
传输协议
TCP/UDP
类别
Messaging
安全风险
Medium
端口范围
已注册 (1024-49151)
什么是端口 4000?
Port 4000 is associated with ICQ instant messaging (legacy) and Blizzard's Diablo II game server. Various custom applications also use this port as a default. It is in the registered port range and frequently appears in network scans due to its use by multiple different services.
TCP/UDP
Messaging
安全注意事项
端口4000（ICQ / Diablo II）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。