CyberHunter
Local dataset, no network
// Other services

Port 1483: AFS License Manager

Port 1483 is assigned by IANA to afs (AFS License Manager).

1483

How afs works

Other services
client:1483afsresponse client:1483afsresponse

The client sends a request to port 1483 and the afs 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 1483 dangerous?

We have no specific security note for port 1483. 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 1483

ServicePortTransportDescriptionReferenceUpdated
afs 1483 TCP, UDP AFS License Manager - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1483, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1483'      # process listening on 1483
sudo lsof -nP -i :1483

macOS

sudo lsof -nP -i :1483

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1483 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1483
netstat -ano | findstr :1483

From another machine

nmap -p 1483 -sV <host>
sudo nmap -sU -p 1483 <host>
nc -zv <host> 1483

Block it in the firewall

sudo ufw deny 1483/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1483" -Direction Inbound -LocalPort 1483 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1483 used for?

Port 1483 is assigned by IANA to afs (AFS License Manager).

Is port 1483 TCP or UDP?

Port 1483 is registered for TCP and UDP.

Is it safe to open port 1483?

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 1483 is open?

On Linux run "ss -ltnup 'sport = :1483'", on macOS "lsof -nP -i :1483", and on Windows "netstat -ano | findstr :1483" to see the local process. From another machine, "nmap -p 1483 <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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