CyberHunter
Local dataset, no network
// Other services

Port 192: OSU Network Monitoring System

Port 192 is assigned by IANA to osu-nms (OSU Network Monitoring System).

192

How osu-nms works

Other services
client:192osu-nmsresponse client:192osu-nmsresponse

The client sends a request to port 192 and the osu-nms service answers.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Well-known (0-1023)
Category
Other services
01 Security

Is port 192 dangerous?

We have no specific security note for port 192. Its risk depends on the program actually listening on it. General advice for other services services:

  • Close the port if nothing on the host needs it.
  • Identify the process that listens on it (commands below) before opening it in a firewall.
  • Expose a service only to the networks that use it.
02 Registry

IANA registry entries for port 192

ServicePortTransportDescriptionReferenceUpdated
osu-nms 192 TCP, UDP OSU Network Monitoring System - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 192, and is it reachable?

Linux

sudo ss -ltnup 'sport = :192'      # process listening on 192
sudo lsof -nP -i :192

macOS

sudo lsof -nP -i :192

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 192 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 192
netstat -ano | findstr :192

From another machine

nmap -p 192 -sV <host>
sudo nmap -sU -p 192 <host>
nc -zv <host> 192

Block it in the firewall

sudo ufw deny 192/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 192" -Direction Inbound -LocalPort 192 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 192 used for?

Port 192 is assigned by IANA to osu-nms (OSU Network Monitoring System).

Is port 192 TCP or UDP?

Port 192 is registered for TCP and UDP.

Is it safe to open port 192?

It depends on the program that listens on it. Open it only for a service you know and only to the networks that need it. Close the port if nothing on the host needs it.

How do I check if port 192 is open?

On Linux run "ss -ltnup 'sport = :192'", on macOS "lsof -nP -i :192", and on Windows "netstat -ano | findstr :192" to see the local process. From another machine, "nmap -p 192 <host>" shows whether it is reachable.

05 Related
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