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// Other services

Port 1384: Objective Solutions License Manager

Port 1384 is assigned by IANA to os-licman (Objective Solutions License Manager).

1384

How os-licman works

Other services
client:1384os-licmanresponse client:1384os-licmanresponse

The client sends a request to port 1384 and the os-licman 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 1384 dangerous?

We have no specific security note for port 1384. 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 1384

ServicePortTransportDescriptionReferenceUpdated
os-licman 1384 TCP, UDP Objective Solutions License Manager - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1384, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1384'      # process listening on 1384
sudo lsof -nP -i :1384

macOS

sudo lsof -nP -i :1384

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1384 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1384
netstat -ano | findstr :1384

From another machine

nmap -p 1384 -sV <host>
sudo nmap -sU -p 1384 <host>
nc -zv <host> 1384

Block it in the firewall

sudo ufw deny 1384/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1384" -Direction Inbound -LocalPort 1384 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1384 used for?

Port 1384 is assigned by IANA to os-licman (Objective Solutions License Manager).

Is port 1384 TCP or UDP?

Port 1384 is registered for TCP and UDP.

Is it safe to open port 1384?

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 1384 is open?

On Linux run "ss -ltnup 'sport = :1384'", on macOS "lsof -nP -i :1384", and on Windows "netstat -ano | findstr :1384" to see the local process. From another machine, "nmap -p 1384 <host>" shows whether it is reachable.

05 Related
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