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// Other services

Port 11163: sun cacao rmi registry access point

Port 11163 is assigned by IANA to suncacao-rmi (sun cacao rmi registry access point).

11163

How suncacao-rmi works

Other services
client:11163suncacao-rmiresponse client:11163suncacao-rmiresponse

The client sends a request to port 11163 and the suncacao-rmi 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 11163 dangerous?

We have no specific security note for port 11163. 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 11163

ServicePortTransportDescriptionReferenceUpdated
suncacao-rmi 11163 TCP, UDP sun cacao rmi registry access point - 2005-08

// source: IANA service name and port number registry

03 Check it

Which program uses port 11163, and is it reachable?

Linux

sudo ss -ltnup 'sport = :11163'      # process listening on 11163
sudo lsof -nP -i :11163

macOS

sudo lsof -nP -i :11163

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 11163 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 11163
netstat -ano | findstr :11163

From another machine

nmap -p 11163 -sV <host>
sudo nmap -sU -p 11163 <host>
nc -zv <host> 11163

Block it in the firewall

sudo ufw deny 11163/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 11163" -Direction Inbound -LocalPort 11163 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 11163 used for?

Port 11163 is assigned by IANA to suncacao-rmi (sun cacao rmi registry access point).

Is port 11163 TCP or UDP?

Port 11163 is registered for TCP and UDP.

Is it safe to open port 11163?

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 11163 is open?

On Linux run "ss -ltnup 'sport = :11163'", on macOS "lsof -nP -i :11163", and on Windows "netstat -ano | findstr :11163" to see the local process. From another machine, "nmap -p 11163 <host>" shows whether it is reachable.

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