CyberHunter
Local dataset, no network
// Other services

Port 3583: CANEX Watch System

Port 3583 is assigned by IANA to canex-watch (CANEX Watch System).

3583

How canex-watch works

Other services
client:3583canex-watchresponse client:3583canex-watchresponse

The client sends a request to port 3583 and the canex-watch 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 3583 dangerous?

We have no specific security note for port 3583. 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 3583

ServicePortTransportDescriptionReferenceUpdated
canex-watch 3583 TCP, UDP CANEX Watch System - 2002-08

// source: IANA service name and port number registry

03 Check it

Which program uses port 3583, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3583'      # process listening on 3583
sudo lsof -nP -i :3583

macOS

sudo lsof -nP -i :3583

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3583 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3583
netstat -ano | findstr :3583

From another machine

nmap -p 3583 -sV <host>
sudo nmap -sU -p 3583 <host>
nc -zv <host> 3583

Block it in the firewall

sudo ufw deny 3583/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3583" -Direction Inbound -LocalPort 3583 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3583 used for?

Port 3583 is assigned by IANA to canex-watch (CANEX Watch System).

Is port 3583 TCP or UDP?

Port 3583 is registered for TCP and UDP.

Is it safe to open port 3583?

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 3583 is open?

On Linux run "ss -ltnup 'sport = :3583'", on macOS "lsof -nP -i :3583", and on Windows "netstat -ano | findstr :3583" to see the local process. From another machine, "nmap -p 3583 <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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