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// Other services

Port 5056: Intecom Pointspan 1

Port 5056 is assigned by IANA to intecom-ps1 (Intecom Pointspan 1).

5056

How intecom-ps1 works

Other services
client:5056intecom-ps1response client:5056intecom-ps1response

The client sends a request to port 5056 and the intecom-ps1 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 5056 dangerous?

We have no specific security note for port 5056. 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 5056

ServicePortTransportDescriptionReferenceUpdated
intecom-ps1 5056 TCP, UDP Intecom Pointspan 1 - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 5056, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5056'      # process listening on 5056
sudo lsof -nP -i :5056

macOS

sudo lsof -nP -i :5056

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5056 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5056
netstat -ano | findstr :5056

From another machine

nmap -p 5056 -sV <host>
sudo nmap -sU -p 5056 <host>
nc -zv <host> 5056

Block it in the firewall

sudo ufw deny 5056/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5056" -Direction Inbound -LocalPort 5056 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 5056 used for?

Port 5056 is assigned by IANA to intecom-ps1 (Intecom Pointspan 1).

Is port 5056 TCP or UDP?

Port 5056 is registered for TCP and UDP.

Is it safe to open port 5056?

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 5056 is open?

On Linux run "ss -ltnup 'sport = :5056'", on macOS "lsof -nP -i :5056", and on Windows "netstat -ano | findstr :5056" to see the local process. From another machine, "nmap -p 5056 <host>" shows whether it is reachable.

05 Related
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