CyberHunter
Local dataset, no network
// Other services

Port 2053: Lot105 DSuper Updates

Port 2053 is assigned by IANA to lot105-ds-upd (Lot105 DSuper Updates).

2053

How lot105-ds-upd works

Other services
client:2053lot105-ds-updresponse client:2053lot105-ds-updresponse

The client sends a request to port 2053 and the lot105-ds-upd 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 2053 dangerous?

We have no specific security note for port 2053. 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 2053

ServicePortTransportDescriptionReferenceUpdated
lot105-ds-upd 2053 TCP, UDP Lot105 DSuper Updates - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2053, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2053'      # process listening on 2053
sudo lsof -nP -i :2053

macOS

sudo lsof -nP -i :2053

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2053 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2053
netstat -ano | findstr :2053

From another machine

nmap -p 2053 -sV <host>
sudo nmap -sU -p 2053 <host>
nc -zv <host> 2053

Block it in the firewall

sudo ufw deny 2053/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2053" -Direction Inbound -LocalPort 2053 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2053 used for?

Port 2053 is assigned by IANA to lot105-ds-upd (Lot105 DSuper Updates).

Is port 2053 TCP or UDP?

Port 2053 is registered for TCP and UDP.

Is it safe to open port 2053?

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 2053 is open?

On Linux run "ss -ltnup 'sport = :2053'", on macOS "lsof -nP -i :2053", and on Windows "netstat -ano | findstr :2053" to see the local process. From another machine, "nmap -p 2053 <host>" shows whether it is reachable.

05 Related
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