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// Other services

Port 2732: G5M

Port 2732 is assigned by IANA to g5m (G5M).

2732

How g5m works

Other services
client:2732g5mresponse client:2732g5mresponse

The client sends a request to port 2732 and the g5m 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 2732 dangerous?

We have no specific security note for port 2732. 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 2732

ServicePortTransportDescriptionReferenceUpdated
g5m 2732 TCP, UDP G5M - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2732, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2732'      # process listening on 2732
sudo lsof -nP -i :2732

macOS

sudo lsof -nP -i :2732

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2732 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2732
netstat -ano | findstr :2732

From another machine

nmap -p 2732 -sV <host>
sudo nmap -sU -p 2732 <host>
nc -zv <host> 2732

Block it in the firewall

sudo ufw deny 2732/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2732" -Direction Inbound -LocalPort 2732 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2732 used for?

Port 2732 is assigned by IANA to g5m (G5M).

Is port 2732 TCP or UDP?

Port 2732 is registered for TCP and UDP.

Is it safe to open port 2732?

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 2732 is open?

On Linux run "ss -ltnup 'sport = :2732'", on macOS "lsof -nP -i :2732", and on Windows "netstat -ano | findstr :2732" to see the local process. From another machine, "nmap -p 2732 <host>" shows whether it is reachable.

05 Related
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp

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