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// Other services

Port 11164: sun cacao command-streaming access point

Port 11164 is assigned by IANA to suncacao-csa (sun cacao command-streaming access point).

11164

How suncacao-csa works

Other services
client:11164suncacao-csaresponse client:11164suncacao-csaresponse

The client sends a request to port 11164 and the suncacao-csa 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 11164 dangerous?

We have no specific security note for port 11164. 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 11164

ServicePortTransportDescriptionReferenceUpdated
suncacao-csa 11164 TCP, UDP sun cacao command-streaming access point - 2005-08

// source: IANA service name and port number registry

03 Check it

Which program uses port 11164, and is it reachable?

Linux

sudo ss -ltnup 'sport = :11164'      # process listening on 11164
sudo lsof -nP -i :11164

macOS

sudo lsof -nP -i :11164

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 11164 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 11164
netstat -ano | findstr :11164

From another machine

nmap -p 11164 -sV <host>
sudo nmap -sU -p 11164 <host>
nc -zv <host> 11164

Block it in the firewall

sudo ufw deny 11164/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 11164" -Direction Inbound -LocalPort 11164 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 11164 used for?

Port 11164 is assigned by IANA to suncacao-csa (sun cacao command-streaming access point).

Is port 11164 TCP or UDP?

Port 11164 is registered for TCP and UDP.

Is it safe to open port 11164?

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 11164 is open?

On Linux run "ss -ltnup 'sport = :11164'", on macOS "lsof -nP -i :11164", and on Windows "netstat -ano | findstr :11164" to see the local process. From another machine, "nmap -p 11164 <host>" shows whether it is reachable.

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