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// Other services

Port 36865: KastenX Pipe

Port 36865 is assigned by IANA to kastenxpipe (KastenX Pipe).

36865

How kastenxpipe works

Other services
client:36865kastenxpiperesponse client:36865kastenxpiperesponse

The client sends a request to port 36865 and the kastenxpipe 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 36865 dangerous?

We have no specific security note for port 36865. 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 36865

ServicePortTransportDescriptionReferenceUpdated
kastenxpipe 36865 TCP, UDP KastenX Pipe - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 36865, and is it reachable?

Linux

sudo ss -ltnup 'sport = :36865'      # process listening on 36865
sudo lsof -nP -i :36865

macOS

sudo lsof -nP -i :36865

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 36865 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 36865
netstat -ano | findstr :36865

From another machine

nmap -p 36865 -sV <host>
sudo nmap -sU -p 36865 <host>
nc -zv <host> 36865

Block it in the firewall

sudo ufw deny 36865/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 36865" -Direction Inbound -LocalPort 36865 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 36865 used for?

Port 36865 is assigned by IANA to kastenxpipe (KastenX Pipe).

Is port 36865 TCP or UDP?

Port 36865 is registered for TCP and UDP.

Is it safe to open port 36865?

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 36865 is open?

On Linux run "ss -ltnup 'sport = :36865'", on macOS "lsof -nP -i :36865", and on Windows "netstat -ano | findstr :36865" to see the local process. From another machine, "nmap -p 36865 <host>" shows whether it is reachable.

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