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// Other services

Port 5727: ASG Event Notification Framework

Port 5727 is assigned by IANA to asgenf (ASG Event Notification Framework).

5727

How asgenf works

Other services
client:5727asgenfresponse client:5727asgenfresponse

The client sends a request to port 5727 and the asgenf service answers.

Transport
TCP
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 5727 dangerous?

We have no specific security note for port 5727. 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 5727

ServicePortTransportDescriptionReferenceUpdated
asgenf 5727 TCP ASG Event Notification Framework - 2009-07-15
-5727-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 5727, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5727'      # process listening on 5727
sudo lsof -nP -i :5727

macOS

sudo lsof -nP -i :5727

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5727 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5727
netstat -ano | findstr :5727

From another machine

nmap -p 5727 -sV <host>
nc -zv <host> 5727

Block it in the firewall

sudo ufw deny 5727/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5727" -Direction Inbound -LocalPort 5727 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 5727 used for?

Port 5727 is assigned by IANA to asgenf (ASG Event Notification Framework).

Is port 5727 TCP or UDP?

Port 5727 is registered for TCP.

Is it safe to open port 5727?

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 5727 is open?

On Linux run "ss -ltnup 'sport = :5727'", on macOS "lsof -nP -i :5727", and on Windows "netstat -ano | findstr :5727" to see the local process. From another machine, "nmap -p 5727 <host>" shows whether it is reachable.

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