CyberHunter
Local dataset, no network
// Other services

Port 8423: Aristech text-to-speech server

Port 8423 is assigned by IANA to aritts (Aristech text-to-speech server).

8423

How aritts works

Other services
client:8423arittsresponse client:8423arittsresponse

The client sends a request to port 8423 and the aritts service answers.

Transport
TCP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Registered (1024-49151)
01 Security

Is port 8423 dangerous?

We have no specific security note for port 8423. 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 8423

ServicePortTransportDescriptionReferenceUpdated
aritts 8423 TCP Aristech text-to-speech server - 2022-02-22
-8423-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 8423, and is it reachable?

Linux

sudo ss -ltnup 'sport = :8423'      # process listening on 8423
sudo lsof -nP -i :8423

macOS

sudo lsof -nP -i :8423

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 8423 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 8423
netstat -ano | findstr :8423

From another machine

nmap -p 8423 -sV <host>
nc -zv <host> 8423

Block it in the firewall

sudo ufw deny 8423/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 8423" -Direction Inbound -LocalPort 8423 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 8423 used for?

Port 8423 is assigned by IANA to aritts (Aristech text-to-speech server).

Is port 8423 TCP or UDP?

Port 8423 is registered for TCP.

Is it safe to open port 8423?

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 8423 is open?

On Linux run "ss -ltnup 'sport = :8423'", on macOS "lsof -nP -i :8423", and on Windows "netstat -ano | findstr :8423" to see the local process. From another machine, "nmap -p 8423 <host>" shows whether it is reachable.

05 Related

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