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// Other services

Port 5172: PC over IP Endpoint Management

Port 5172 is assigned by IANA to pcoip-mgmt (PC over IP Endpoint Management).

5172

How pcoip-mgmt works

Other services
client:5172pcoip-mgmtresponse client:5172pcoip-mgmtresponse

The client sends a request to port 5172 and the pcoip-mgmt service answers.

Transport
TCP
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 5172 dangerous?

We have no specific security note for port 5172. 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 5172

ServicePortTransportDescriptionReferenceUpdated
pcoip-mgmt 5172 TCP PC over IP Endpoint Management - 2026-03-10
-5172-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 5172, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5172'      # process listening on 5172
sudo lsof -nP -i :5172

macOS

sudo lsof -nP -i :5172

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5172 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5172
netstat -ano | findstr :5172

From another machine

nmap -p 5172 -sV <host>
nc -zv <host> 5172

Block it in the firewall

sudo ufw deny 5172/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5172" -Direction Inbound -LocalPort 5172 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 5172 used for?

Port 5172 is assigned by IANA to pcoip-mgmt (PC over IP Endpoint Management).

Is port 5172 TCP or UDP?

Port 5172 is registered for TCP.

Is it safe to open port 5172?

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 5172 is open?

On Linux run "ss -ltnup 'sport = :5172'", on macOS "lsof -nP -i :5172", and on Windows "netstat -ano | findstr :5172" to see the local process. From another machine, "nmap -p 5172 <host>" shows whether it is reachable.

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