Port 11967

sysinfo-sp · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicesysinfo-sp
Registered2003-03

Frequently asked questions

What is port 11967 used for?

Port 11967 is registered with the IANA for sysinfo-sp (TCP/UDP). Description: SysInfo Service Protocol.

Is port 11967 a well-known port?

No. Port 11967 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 11967 is open?

Locally on Linux with ss -tulpn | grep ':11967\b', on Windows with netstat -ano | findstr :11967. To test a remote host use Test-NetConnection <host> -Port 11967 in PowerShell or nc -zv <host> 11967 on Linux/macOS.

How do I open port 11967 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 11967/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=11967/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 11967" -Direction Inbound -Protocol TCP -LocalPort 11967 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPsysinfo-spSysInfo Service Protocol
UDPsysinfo-spSysInfo Service Protocol

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