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// Other services

Port 2930: AMX-WEBLINX

Port 2930 is assigned by IANA to amx-weblinx (AMX-WEBLINX).

2930

How amx-weblinx works

Other services
client:2930amx-weblinxresponse client:2930amx-weblinxresponse

The client sends a request to port 2930 and the amx-weblinx 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 2930 dangerous?

We have no specific security note for port 2930. 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 2930

ServicePortTransportDescriptionReferenceUpdated
amx-weblinx 2930 TCP, UDP AMX-WEBLINX - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2930, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2930'      # process listening on 2930
sudo lsof -nP -i :2930

macOS

sudo lsof -nP -i :2930

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2930 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2930
netstat -ano | findstr :2930

From another machine

nmap -p 2930 -sV <host>
sudo nmap -sU -p 2930 <host>
nc -zv <host> 2930

Block it in the firewall

sudo ufw deny 2930/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2930" -Direction Inbound -LocalPort 2930 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2930 used for?

Port 2930 is assigned by IANA to amx-weblinx (AMX-WEBLINX).

Is port 2930 TCP or UDP?

Port 2930 is registered for TCP and UDP.

Is it safe to open port 2930?

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 2930 is open?

On Linux run "ss -ltnup 'sport = :2930'", on macOS "lsof -nP -i :2930", and on Windows "netstat -ano | findstr :2930" to see the local process. From another machine, "nmap -p 2930 <host>" shows whether it is reachable.

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