:5901
(TCP)
High 风险
VNC Display 1
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TCP — Remote Access
端口概览
端口号
5901
服务名称
VNC Display 1
传输协议
TCP
类别
Remote Access
安全风险
High
端口范围
已注册 (1024-49151)
什么是端口 5901?
Port 5901 is used by VNC (Virtual Network Computing) for the second virtual display (display :1). VNC servers increment the port number by display number, so display :0 uses 5900, display :1 uses 5901, and so on. This convention is used when running multiple VNC sessions simultaneously on the same server.
TCP
Remote Access
常用
安全注意事项
端口5901（VNC Display 1）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。