CyberHunter
Local dataset, no network
// Other services

Port 2671: newlixreg

Port 2671 is assigned by IANA to newlixreg (newlixreg).

2671

How newlixreg works

Other services
client:2671newlixregresponse client:2671newlixregresponse

The client sends a request to port 2671 and the newlixreg 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 2671 dangerous?

We have no specific security note for port 2671. 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 2671

ServicePortTransportDescriptionReferenceUpdated
newlixreg 2671 TCP, UDP newlixreg - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2671, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2671'      # process listening on 2671
sudo lsof -nP -i :2671

macOS

sudo lsof -nP -i :2671

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2671 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2671
netstat -ano | findstr :2671

From another machine

nmap -p 2671 -sV <host>
sudo nmap -sU -p 2671 <host>
nc -zv <host> 2671

Block it in the firewall

sudo ufw deny 2671/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2671" -Direction Inbound -LocalPort 2671 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2671 used for?

Port 2671 is assigned by IANA to newlixreg (newlixreg).

Is port 2671 TCP or UDP?

Port 2671 is registered for TCP and UDP.

Is it safe to open port 2671?

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 2671 is open?

On Linux run "ss -ltnup 'sport = :2671'", on macOS "lsof -nP -i :2671", and on Windows "netstat -ano | findstr :2671" to see the local process. From another machine, "nmap -p 2671 <host>" shows whether it is reachable.

05 Related
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