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// Other services

Port 144: Universal Management Architecture

Port 144 is assigned by IANA to uma (Universal Management Architecture).

144

How uma works

Other services
client:144umaresponse client:144umaresponse

The client sends a request to port 144 and the uma 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
Well-known (0-1023)
Category
Other services
01 Security

Is port 144 dangerous?

We have no specific security note for port 144. 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 144

ServicePortTransportDescriptionReferenceUpdated
uma 144 TCP, UDP Universal Management Architecture - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 144, and is it reachable?

Linux

sudo ss -ltnup 'sport = :144'      # process listening on 144
sudo lsof -nP -i :144

macOS

sudo lsof -nP -i :144

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 144 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 144
netstat -ano | findstr :144

From another machine

nmap -p 144 -sV <host>
sudo nmap -sU -p 144 <host>
nc -zv <host> 144

Block it in the firewall

sudo ufw deny 144/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 144" -Direction Inbound -LocalPort 144 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 144 used for?

Port 144 is assigned by IANA to uma (Universal Management Architecture).

Is port 144 TCP or UDP?

Port 144 is registered for TCP and UDP.

Is it safe to open port 144?

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 144 is open?

On Linux run "ss -ltnup 'sport = :144'", on macOS "lsof -nP -i :144", and on Windows "netstat -ano | findstr :144" to see the local process. From another machine, "nmap -p 144 <host>" shows whether it is reachable.

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