CyberHunter
Local dataset, no network
// Other services

Port 2753: de-spot

Port 2753 is assigned by IANA to de-spot (de-spot).

2753

How de-spot works

Other services
client:2753de-spotresponse client:2753de-spotresponse

The client sends a request to port 2753 and the de-spot 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 2753 dangerous?

We have no specific security note for port 2753. 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 2753

ServicePortTransportDescriptionReferenceUpdated
de-spot 2753 TCP, UDP de-spot - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2753, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2753'      # process listening on 2753
sudo lsof -nP -i :2753

macOS

sudo lsof -nP -i :2753

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2753 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2753
netstat -ano | findstr :2753

From another machine

nmap -p 2753 -sV <host>
sudo nmap -sU -p 2753 <host>
nc -zv <host> 2753

Block it in the firewall

sudo ufw deny 2753/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2753" -Direction Inbound -LocalPort 2753 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2753 used for?

Port 2753 is assigned by IANA to de-spot (de-spot).

Is port 2753 TCP or UDP?

Port 2753 is registered for TCP and UDP.

Is it safe to open port 2753?

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 2753 is open?

On Linux run "ss -ltnup 'sport = :2753'", on macOS "lsof -nP -i :2753", and on Windows "netstat -ano | findstr :2753" to see the local process. From another machine, "nmap -p 2753 <host>" shows whether it is reachable.

05 Related
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