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// Other services

Port 2038:

Port 2038 is assigned by IANA to objectmanager ().

2038

How objectmanager works

Other services
client:2038objectmanagerresponse client:2038objectmanagerresponse

The client sends a request to port 2038 and the objectmanager 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 2038 dangerous?

We have no specific security note for port 2038. 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 2038

ServicePortTransportDescriptionReferenceUpdated
objectmanager 2038 TCP, UDP - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2038, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2038'      # process listening on 2038
sudo lsof -nP -i :2038

macOS

sudo lsof -nP -i :2038

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2038 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2038
netstat -ano | findstr :2038

From another machine

nmap -p 2038 -sV <host>
sudo nmap -sU -p 2038 <host>
nc -zv <host> 2038

Block it in the firewall

sudo ufw deny 2038/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2038" -Direction Inbound -LocalPort 2038 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2038 used for?

Port 2038 is assigned by IANA to objectmanager ().

Is port 2038 TCP or UDP?

Port 2038 is registered for TCP and UDP.

Is it safe to open port 2038?

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 2038 is open?

On Linux run "ss -ltnup 'sport = :2038'", on macOS "lsof -nP -i :2038", and on Windows "netstat -ano | findstr :2038" to see the local process. From another machine, "nmap -p 2038 <host>" shows whether it is reachable.

05 Related
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