Port 9875

sapv1 · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicesapv1
ReferenceRFC 2974

Frequently asked questions

What is port 9875 used for?

Port 9875 is registered with the IANA for sapv1 (TCP/UDP). Description: Session Announcement v1.

Is port 9875 a well-known port?

No. Port 9875 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 9875 is open?

Locally on Linux with ss -tulpn | grep ':9875\b', on Windows with netstat -ano | findstr :9875. To test a remote host use Test-NetConnection <host> -Port 9875 in PowerShell or nc -zv <host> 9875 on Linux/macOS.

How do I open port 9875 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 9875/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=9875/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 9875" -Direction Inbound -Protocol TCP -LocalPort 9875 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPsapv1Session Announcement v1
UDPsapv1Session Announcement v1

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