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// Other services

Port 4057: Servigistics WFM server

Port 4057 is assigned by IANA to wfm (Servigistics WFM server).

4057

How wfm works

Other services
client:4057wfmresponse client:4057wfmresponse

The client sends a request to port 4057 and the wfm 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 4057 dangerous?

We have no specific security note for port 4057. 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 4057

ServicePortTransportDescriptionReferenceUpdated
wfm 4057 TCP, UDP Servigistics WFM server - 2006-08

// source: IANA service name and port number registry

03 Check it

Which program uses port 4057, and is it reachable?

Linux

sudo ss -ltnup 'sport = :4057'      # process listening on 4057
sudo lsof -nP -i :4057

macOS

sudo lsof -nP -i :4057

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 4057 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 4057
netstat -ano | findstr :4057

From another machine

nmap -p 4057 -sV <host>
sudo nmap -sU -p 4057 <host>
nc -zv <host> 4057

Block it in the firewall

sudo ufw deny 4057/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 4057" -Direction Inbound -LocalPort 4057 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 4057 used for?

Port 4057 is assigned by IANA to wfm (Servigistics WFM server).

Is port 4057 TCP or UDP?

Port 4057 is registered for TCP and UDP.

Is it safe to open port 4057?

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 4057 is open?

On Linux run "ss -ltnup 'sport = :4057'", on macOS "lsof -nP -i :4057", and on Windows "netstat -ano | findstr :4057" to see the local process. From another machine, "nmap -p 4057 <host>" shows whether it is reachable.

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