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// Other services

Port 1389: Document Manager

Port 1389 is assigned by IANA to iclpv-dm (Document Manager).

1389

How iclpv-dm works

Other services
client:1389iclpv-dmresponse client:1389iclpv-dmresponse

The client sends a request to port 1389 and the iclpv-dm 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 1389 dangerous?

We have no specific security note for port 1389. 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 1389

ServicePortTransportDescriptionReferenceUpdated
iclpv-dm 1389 TCP, UDP Document Manager - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1389, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1389'      # process listening on 1389
sudo lsof -nP -i :1389

macOS

sudo lsof -nP -i :1389

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1389 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1389
netstat -ano | findstr :1389

From another machine

nmap -p 1389 -sV <host>
sudo nmap -sU -p 1389 <host>
nc -zv <host> 1389

Block it in the firewall

sudo ufw deny 1389/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1389" -Direction Inbound -LocalPort 1389 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1389 used for?

Port 1389 is assigned by IANA to iclpv-dm (Document Manager).

Is port 1389 TCP or UDP?

Port 1389 is registered for TCP and UDP.

Is it safe to open port 1389?

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 1389 is open?

On Linux run "ss -ltnup 'sport = :1389'", on macOS "lsof -nP -i :1389", and on Windows "netstat -ano | findstr :1389" to see the local process. From another machine, "nmap -p 1389 <host>" shows whether it is reachable.

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