CyberHunter
Local dataset, no network
// Other services

Port 1411: AudioFile

Port 1411 is assigned by IANA to af (AudioFile).

1411

How af works

Other services
client:1411afresponse client:1411afresponse

The client sends a request to port 1411 and the af 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 1411 dangerous?

We have no specific security note for port 1411. 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 1411

ServicePortTransportDescriptionReferenceUpdated
af 1411 TCP, UDP AudioFile - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1411, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1411'      # process listening on 1411
sudo lsof -nP -i :1411

macOS

sudo lsof -nP -i :1411

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1411 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1411
netstat -ano | findstr :1411

From another machine

nmap -p 1411 -sV <host>
sudo nmap -sU -p 1411 <host>
nc -zv <host> 1411

Block it in the firewall

sudo ufw deny 1411/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1411" -Direction Inbound -LocalPort 1411 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1411 used for?

Port 1411 is assigned by IANA to af (AudioFile).

Is port 1411 TCP or UDP?

Port 1411 is registered for TCP and UDP.

Is it safe to open port 1411?

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 1411 is open?

On Linux run "ss -ltnup 'sport = :1411'", on macOS "lsof -nP -i :1411", and on Windows "netstat -ano | findstr :1411" to see the local process. From another machine, "nmap -p 1411 <host>" shows whether it is reachable.

05 Related
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