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// Other services

Port 1366: Novell NetWare Comm Service Platform

Port 1366 is assigned by IANA to netware-csp (Novell NetWare Comm Service Platform).

1366

How netware-csp works

Other services
client:1366netware-cspresponse client:1366netware-cspresponse

The client sends a request to port 1366 and the netware-csp 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 1366 dangerous?

We have no specific security note for port 1366. 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 1366

ServicePortTransportDescriptionReferenceUpdated
netware-csp 1366 TCP, UDP Novell NetWare Comm Service Platform - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1366, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1366'      # process listening on 1366
sudo lsof -nP -i :1366

macOS

sudo lsof -nP -i :1366

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1366 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1366
netstat -ano | findstr :1366

From another machine

nmap -p 1366 -sV <host>
sudo nmap -sU -p 1366 <host>
nc -zv <host> 1366

Block it in the firewall

sudo ufw deny 1366/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1366" -Direction Inbound -LocalPort 1366 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1366 used for?

Port 1366 is assigned by IANA to netware-csp (Novell NetWare Comm Service Platform).

Is port 1366 TCP or UDP?

Port 1366 is registered for TCP and UDP.

Is it safe to open port 1366?

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 1366 is open?

On Linux run "ss -ltnup 'sport = :1366'", on macOS "lsof -nP -i :1366", and on Windows "netstat -ano | findstr :1366" to see the local process. From another machine, "nmap -p 1366 <host>" shows whether it is reachable.

05 Related
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