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// Other services

Port 2110: UMSP

Port 2110 is assigned by IANA to umsp (UMSP).

2110

How umsp works

Other services
client:2110umspresponse client:2110umspresponse

The client sends a request to port 2110 and the umsp 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 2110 dangerous?

We have no specific security note for port 2110. 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 2110

ServicePortTransportDescriptionReferenceUpdated
umsp 2110 TCP, UDP UMSP - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2110, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2110'      # process listening on 2110
sudo lsof -nP -i :2110

macOS

sudo lsof -nP -i :2110

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2110 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2110
netstat -ano | findstr :2110

From another machine

nmap -p 2110 -sV <host>
sudo nmap -sU -p 2110 <host>
nc -zv <host> 2110

Block it in the firewall

sudo ufw deny 2110/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2110" -Direction Inbound -LocalPort 2110 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2110 used for?

Port 2110 is assigned by IANA to umsp (UMSP).

Is port 2110 TCP or UDP?

Port 2110 is registered for TCP and UDP.

Is it safe to open port 2110?

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 2110 is open?

On Linux run "ss -ltnup 'sport = :2110'", on macOS "lsof -nP -i :2110", and on Windows "netstat -ano | findstr :2110" to see the local process. From another machine, "nmap -p 2110 <host>" shows whether it is reachable.

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