CyberHunter
// Other services

Port 560: rmonitord

Port 560 is assigned by IANA to rmonitor (rmonitord).

560

How rmonitor works

Other services
client:560rmonitorresponse client:560rmonitorresponse

The client sends a request to port 560 and the rmonitor 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)
01 Security

Is port 560 dangerous?

We have no specific security note for port 560. 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 560

ServicePortTransportDescriptionReferenceUpdated
rmonitor 560 TCP, UDP rmonitord - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 560, and is it reachable?

Linux

sudo ss -ltnup 'sport = :560'      # process listening on 560
sudo lsof -nP -i :560

macOS

sudo lsof -nP -i :560

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 560 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 560
netstat -ano | findstr :560

From another machine

nmap -p 560 -sV <host>
sudo nmap -sU -p 560 <host>
nc -zv <host> 560

Block it in the firewall

sudo ufw deny 560/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 560" -Direction Inbound -LocalPort 560 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 560 used for?

Port 560 is assigned by IANA to rmonitor (rmonitord).

Is port 560 TCP or UDP?

Port 560 is registered for TCP and UDP.

Is it safe to open port 560?

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 560 is open?

On Linux run "ss -ltnup 'sport = :560'", on macOS "lsof -nP -i :560", and on Windows "netstat -ano | findstr :560" to see the local process. From another machine, "nmap -p 560 <host>" shows whether it is reachable.

05 Related