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// Other services

Port 2952: MPFWSAS

Port 2952 is assigned by IANA to mpfwsas (MPFWSAS).

2952

How mpfwsas works

Other services
client:2952mpfwsasresponse client:2952mpfwsasresponse

The client sends a request to port 2952 and the mpfwsas 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 2952 dangerous?

We have no specific security note for port 2952. 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 2952

ServicePortTransportDescriptionReferenceUpdated
mpfwsas 2952 TCP, UDP MPFWSAS - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2952, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2952'      # process listening on 2952
sudo lsof -nP -i :2952

macOS

sudo lsof -nP -i :2952

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2952 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2952
netstat -ano | findstr :2952

From another machine

nmap -p 2952 -sV <host>
sudo nmap -sU -p 2952 <host>
nc -zv <host> 2952

Block it in the firewall

sudo ufw deny 2952/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2952" -Direction Inbound -LocalPort 2952 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2952 used for?

Port 2952 is assigned by IANA to mpfwsas (MPFWSAS).

Is port 2952 TCP or UDP?

Port 2952 is registered for TCP and UDP.

Is it safe to open port 2952?

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 2952 is open?

On Linux run "ss -ltnup 'sport = :2952'", on macOS "lsof -nP -i :2952", and on Windows "netstat -ano | findstr :2952" to see the local process. From another machine, "nmap -p 2952 <host>" shows whether it is reachable.

05 Related
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