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// Other services

Port 4970: CCSS QSystemMonitor

Port 4970 is assigned by IANA to ccss-qsm (CCSS QSystemMonitor).

4970

How ccss-qsm works

Other services
client:4970ccss-qsmresponse client:4970ccss-qsmresponse

The client sends a request to port 4970 and the ccss-qsm 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
Registered (1024-49151)
Category
Other services
01 Security

Is port 4970 dangerous?

We have no specific security note for port 4970. 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 4970

ServicePortTransportDescriptionReferenceUpdated
ccss-qsm 4970 TCP, UDP CCSS QSystemMonitor - 2006-01

// source: IANA service name and port number registry

03 Check it

Which program uses port 4970, and is it reachable?

Linux

sudo ss -ltnup 'sport = :4970'      # process listening on 4970
sudo lsof -nP -i :4970

macOS

sudo lsof -nP -i :4970

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 4970 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 4970
netstat -ano | findstr :4970

From another machine

nmap -p 4970 -sV <host>
sudo nmap -sU -p 4970 <host>
nc -zv <host> 4970

Block it in the firewall

sudo ufw deny 4970/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 4970" -Direction Inbound -LocalPort 4970 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 4970 used for?

Port 4970 is assigned by IANA to ccss-qsm (CCSS QSystemMonitor).

Is port 4970 TCP or UDP?

Port 4970 is registered for TCP and UDP.

Is it safe to open port 4970?

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 4970 is open?

On Linux run "ss -ltnup 'sport = :4970'", on macOS "lsof -nP -i :4970", and on Windows "netstat -ano | findstr :4970" to see the local process. From another machine, "nmap -p 4970 <host>" shows whether it is reachable.

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