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// Other services

Port 1216: ETEBAC 5

Port 1216 is assigned by IANA to etebac5 (ETEBAC 5).

1216

How etebac5 works

Other services
client:1216etebac5response client:1216etebac5response

The client sends a request to port 1216 and the etebac5 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 1216 dangerous?

We have no specific security note for port 1216. 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 1216

ServicePortTransportDescriptionReferenceUpdated
etebac5 1216 TCP, UDP ETEBAC 5 - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1216, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1216'      # process listening on 1216
sudo lsof -nP -i :1216

macOS

sudo lsof -nP -i :1216

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1216 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1216
netstat -ano | findstr :1216

From another machine

nmap -p 1216 -sV <host>
sudo nmap -sU -p 1216 <host>
nc -zv <host> 1216

Block it in the firewall

sudo ufw deny 1216/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1216" -Direction Inbound -LocalPort 1216 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1216 used for?

Port 1216 is assigned by IANA to etebac5 (ETEBAC 5).

Is port 1216 TCP or UDP?

Port 1216 is registered for TCP and UDP.

Is it safe to open port 1216?

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 1216 is open?

On Linux run "ss -ltnup 'sport = :1216'", on macOS "lsof -nP -i :1216", and on Windows "netstat -ano | findstr :1216" to see the local process. From another machine, "nmap -p 1216 <host>" shows whether it is reachable.

05 Related
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