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// Other services

Port 48002: Nimbus Hub

Port 48002 is assigned by IANA to nimhub (Nimbus Hub).

48002

How nimhub works

Other services
client:48002nimhubresponse client:48002nimhubresponse

The client sends a request to port 48002 and the nimhub 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 48002 dangerous?

We have no specific security note for port 48002. 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 48002

ServicePortTransportDescriptionReferenceUpdated
nimhub 48002 TCP, UDP Nimbus Hub - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 48002, and is it reachable?

Linux

sudo ss -ltnup 'sport = :48002'      # process listening on 48002
sudo lsof -nP -i :48002

macOS

sudo lsof -nP -i :48002

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 48002 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 48002
netstat -ano | findstr :48002

From another machine

nmap -p 48002 -sV <host>
sudo nmap -sU -p 48002 <host>
nc -zv <host> 48002

Block it in the firewall

sudo ufw deny 48002/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 48002" -Direction Inbound -LocalPort 48002 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 48002 used for?

Port 48002 is assigned by IANA to nimhub (Nimbus Hub).

Is port 48002 TCP or UDP?

Port 48002 is registered for TCP and UDP.

Is it safe to open port 48002?

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 48002 is open?

On Linux run "ss -ltnup 'sport = :48002'", on macOS "lsof -nP -i :48002", and on Windows "netstat -ano | findstr :48002" to see the local process. From another machine, "nmap -p 48002 <host>" shows whether it is reachable.

05 Related
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