Port 9100

hp-pdl-datastr and pdl-datastream · TCP/UDP

RangeRegistered port (1024–49151)
ProtocolTCP/UDP
Servicehp-pdl-datastr and pdl-datastream
Registered2002-04

Frequently asked questions

What is port 9100 used for?

Port 9100 is registered with the IANA for hp-pdl-datastr and pdl-datastream (TCP/UDP). Description: PDL Data Streaming Port; Printer PDL Data Stream.

Is port 9100 a well-known port?

No. Port 9100 is in the range 1024–49151 (registered or user ports). Ordinary programs may open it without root privileges.

How do I check whether port 9100 is open?

Locally on Linux with ss -tulpn | grep ':9100\b', on Windows with netstat -ano | findstr :9100. To test a remote host use Test-NetConnection <host> -Port 9100 in PowerShell or nc -zv <host> 9100 on Linux/macOS.

How do I open port 9100 in the firewall?

Ubuntu/Debian (ufw): sudo ufw allow 9100/tcp. Fedora/RHEL (firewalld): sudo firewall-cmd --add-port=9100/tcp --permanent, then firewall-cmd --reload. Windows (PowerShell as administrator): New-NetFirewallRule -DisplayName "Port 9100" -Direction Inbound -Protocol TCP -LocalPort 9100 -Action Allow.

IANA registry entries

ProtocolServiceDescription (IANA)
TCPhp-pdl-datastrPDL Data Streaming Port
UDPhp-pdl-datastrPDL Data Streaming Port
TCPpdl-datastreamPrinter PDL Data Stream
UDPpdl-datastreamPrinter PDL Data Stream

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