CyberHunter
Local dataset, no network
// Other services

Port 8416: eSpeech Session Protocol

Port 8416 is assigned by IANA to espeech (eSpeech Session Protocol).

8416

How espeech works

Other services
client:8416espeechresponse client:8416espeechresponse

The client sends a request to port 8416 and the espeech 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 8416 dangerous?

We have no specific security note for port 8416. 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 8416

ServicePortTransportDescriptionReferenceUpdated
espeech 8416 TCP, UDP eSpeech Session Protocol - 2002-11

// source: IANA service name and port number registry

03 Check it

Which program uses port 8416, and is it reachable?

Linux

sudo ss -ltnup 'sport = :8416'      # process listening on 8416
sudo lsof -nP -i :8416

macOS

sudo lsof -nP -i :8416

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 8416 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 8416
netstat -ano | findstr :8416

From another machine

nmap -p 8416 -sV <host>
sudo nmap -sU -p 8416 <host>
nc -zv <host> 8416

Block it in the firewall

sudo ufw deny 8416/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 8416" -Direction Inbound -LocalPort 8416 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 8416 used for?

Port 8416 is assigned by IANA to espeech (eSpeech Session Protocol).

Is port 8416 TCP or UDP?

Port 8416 is registered for TCP and UDP.

Is it safe to open port 8416?

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 8416 is open?

On Linux run "ss -ltnup 'sport = :8416'", on macOS "lsof -nP -i :8416", and on Windows "netstat -ano | findstr :8416" to see the local process. From another machine, "nmap -p 8416 <host>" shows whether it is reachable.

05 Related
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