CyberHunter
Local dataset, no network
// Other services

Port 5968: mppolicy-v5

Port 5968 is assigned by IANA to mppolicy-v5 (mppolicy-v5).

5968

How mppolicy-v5 works

Other services
client:5968mppolicy-v5response client:5968mppolicy-v5response

The client sends a request to port 5968 and the mppolicy-v5 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 5968 dangerous?

We have no specific security note for port 5968. 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 5968

ServicePortTransportDescriptionReferenceUpdated
mppolicy-v5 5968 TCP, UDP mppolicy-v5 - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 5968, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5968'      # process listening on 5968
sudo lsof -nP -i :5968

macOS

sudo lsof -nP -i :5968

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5968 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5968
netstat -ano | findstr :5968

From another machine

nmap -p 5968 -sV <host>
sudo nmap -sU -p 5968 <host>
nc -zv <host> 5968

Block it in the firewall

sudo ufw deny 5968/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5968" -Direction Inbound -LocalPort 5968 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 5968 used for?

Port 5968 is assigned by IANA to mppolicy-v5 (mppolicy-v5).

Is port 5968 TCP or UDP?

Port 5968 is registered for TCP and UDP.

Is it safe to open port 5968?

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 5968 is open?

On Linux run "ss -ltnup 'sport = :5968'", on macOS "lsof -nP -i :5968", and on Windows "netstat -ano | findstr :5968" to see the local process. From another machine, "nmap -p 5968 <host>" shows whether it is reachable.

05 Related
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