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// Other services

Port 2248: User Management Service

Port 2248 is assigned by IANA to ums (User Management Service).

2248

How ums works

Other services
client:2248umsresponse client:2248umsresponse

The client sends a request to port 2248 and the ums 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 2248 dangerous?

We have no specific security note for port 2248. 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 2248

ServicePortTransportDescriptionReferenceUpdated
ums 2248 TCP, UDP User Management Service - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2248, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2248'      # process listening on 2248
sudo lsof -nP -i :2248

macOS

sudo lsof -nP -i :2248

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2248 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2248
netstat -ano | findstr :2248

From another machine

nmap -p 2248 -sV <host>
sudo nmap -sU -p 2248 <host>
nc -zv <host> 2248

Block it in the firewall

sudo ufw deny 2248/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2248" -Direction Inbound -LocalPort 2248 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2248 used for?

Port 2248 is assigned by IANA to ums (User Management Service).

Is port 2248 TCP or UDP?

Port 2248 is registered for TCP and UDP.

Is it safe to open port 2248?

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 2248 is open?

On Linux run "ss -ltnup 'sport = :2248'", on macOS "lsof -nP -i :2248", and on Windows "netstat -ano | findstr :2248" to see the local process. From another machine, "nmap -p 2248 <host>" shows whether it is reachable.

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