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// Other services

Port 479: iafserver

Port 479 is assigned by IANA to iafserver (iafserver).

479

How iafserver works

Other services
client:479iafserverresponse client:479iafserverresponse

The client sends a request to port 479 and the iafserver 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
Well-known (0-1023)
Category
Other services
01 Security

Is port 479 dangerous?

We have no specific security note for port 479. 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 479

ServicePortTransportDescriptionReferenceUpdated
iafserver 479 TCP, UDP iafserver - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 479, and is it reachable?

Linux

sudo ss -ltnup 'sport = :479'      # process listening on 479
sudo lsof -nP -i :479

macOS

sudo lsof -nP -i :479

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 479 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 479
netstat -ano | findstr :479

From another machine

nmap -p 479 -sV <host>
sudo nmap -sU -p 479 <host>
nc -zv <host> 479

Block it in the firewall

sudo ufw deny 479/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 479" -Direction Inbound -LocalPort 479 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 479 used for?

Port 479 is assigned by IANA to iafserver (iafserver).

Is port 479 TCP or UDP?

Port 479 is registered for TCP and UDP.

Is it safe to open port 479?

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 479 is open?

On Linux run "ss -ltnup 'sport = :479'", on macOS "lsof -nP -i :479", and on Windows "netstat -ano | findstr :479" to see the local process. From another machine, "nmap -p 479 <host>" shows whether it is reachable.

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