CyberHunter
Local dataset, no network
// Other services

Port 2579: mpfoncl

Port 2579 is assigned by IANA to mpfoncl (mpfoncl).

2579

How mpfoncl works

Other services
client:2579mpfonclresponse client:2579mpfonclresponse

The client sends a request to port 2579 and the mpfoncl 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)
01 Security

Is port 2579 dangerous?

We have no specific security note for port 2579. 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 2579

ServicePortTransportDescriptionReferenceUpdated
mpfoncl 2579 TCP, UDP mpfoncl - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2579, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2579'      # process listening on 2579
sudo lsof -nP -i :2579

macOS

sudo lsof -nP -i :2579

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2579 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2579
netstat -ano | findstr :2579

From another machine

nmap -p 2579 -sV <host>
sudo nmap -sU -p 2579 <host>
nc -zv <host> 2579

Block it in the firewall

sudo ufw deny 2579/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2579" -Direction Inbound -LocalPort 2579 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2579 used for?

Port 2579 is assigned by IANA to mpfoncl (mpfoncl).

Is port 2579 TCP or UDP?

Port 2579 is registered for TCP and UDP.

Is it safe to open port 2579?

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 2579 is open?

On Linux run "ss -ltnup 'sport = :2579'", on macOS "lsof -nP -i :2579", and on Windows "netstat -ano | findstr :2579" to see the local process. From another machine, "nmap -p 2579 <host>" shows whether it is reachable.

05 Related

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