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// Other services

Port 4593: IPT (ANRI-ANRI)

Port 4593 is assigned by IANA to ipt-anri-anri (IPT (ANRI-ANRI)).

4593

How ipt-anri-anri works

Other services
client:4593ipt-anri-anriresponse client:4593ipt-anri-anriresponse

The client sends a request to port 4593 and the ipt-anri-anri 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 4593 dangerous?

We have no specific security note for port 4593. 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 4593

ServicePortTransportDescriptionReferenceUpdated
ipt-anri-anri 4593 TCP, UDP IPT (ANRI-ANRI) - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 4593, and is it reachable?

Linux

sudo ss -ltnup 'sport = :4593'      # process listening on 4593
sudo lsof -nP -i :4593

macOS

sudo lsof -nP -i :4593

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 4593 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 4593
netstat -ano | findstr :4593

From another machine

nmap -p 4593 -sV <host>
sudo nmap -sU -p 4593 <host>
nc -zv <host> 4593

Block it in the firewall

sudo ufw deny 4593/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 4593" -Direction Inbound -LocalPort 4593 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 4593 used for?

Port 4593 is assigned by IANA to ipt-anri-anri (IPT (ANRI-ANRI)).

Is port 4593 TCP or UDP?

Port 4593 is registered for TCP and UDP.

Is it safe to open port 4593?

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 4593 is open?

On Linux run "ss -ltnup 'sport = :4593'", on macOS "lsof -nP -i :4593", and on Windows "netstat -ano | findstr :4593" to see the local process. From another machine, "nmap -p 4593 <host>" shows whether it is reachable.

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