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// Other services

Port 396: Novell Netware over IP

Port 396 is assigned by IANA to netware-ip (Novell Netware over IP).

396

How netware-ip works

Other services
client:396netware-ipresponse client:396netware-ipresponse

The client sends a request to port 396 and the netware-ip 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
Well-known (0-1023)
Category
Other services
01 Security

Is port 396 dangerous?

We have no specific security note for port 396. 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 396

ServicePortTransportDescriptionReferenceUpdated
netware-ip 396 TCP, UDP Novell Netware over IP - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 396, and is it reachable?

Linux

sudo ss -ltnup 'sport = :396'      # process listening on 396
sudo lsof -nP -i :396

macOS

sudo lsof -nP -i :396

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 396 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 396
netstat -ano | findstr :396

From another machine

nmap -p 396 -sV <host>
sudo nmap -sU -p 396 <host>
nc -zv <host> 396

Block it in the firewall

sudo ufw deny 396/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 396" -Direction Inbound -LocalPort 396 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 396 used for?

Port 396 is assigned by IANA to netware-ip (Novell Netware over IP).

Is port 396 TCP or UDP?

Port 396 is registered for TCP and UDP.

Is it safe to open port 396?

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 396 is open?

On Linux run "ss -ltnup 'sport = :396'", on macOS "lsof -nP -i :396", and on Windows "netstat -ano | findstr :396" to see the local process. From another machine, "nmap -p 396 <host>" shows whether it is reachable.

05 Related
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