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// Other services

Port 11796: LanSchool

Port 11796 is assigned by IANA to lanschool (LanSchool), lanschool-mpt (Lanschool Multipoint).

11796

How lanschool works

Other services
client:11796lanschoolresponse client:11796lanschoolresponse

The client sends a request to port 11796 and the lanschool service answers.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned2 registered services
Range
Registered (1024-49151)
Category
Other services
01 Security

Is port 11796 dangerous?

We have no specific security note for port 11796. 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 11796

ServicePortTransportDescriptionReferenceUpdated
lanschool 11796 TCP LanSchool - 2012-05-18
lanschool-mpt 11796 UDP Lanschool Multipoint - 2012-05-18

// source: IANA service name and port number registry

03 Check it

Which program uses port 11796, and is it reachable?

Linux

sudo ss -ltnup 'sport = :11796'      # process listening on 11796
sudo lsof -nP -i :11796

macOS

sudo lsof -nP -i :11796

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 11796 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 11796
netstat -ano | findstr :11796

From another machine

nmap -p 11796 -sV <host>
sudo nmap -sU -p 11796 <host>
nc -zv <host> 11796

Block it in the firewall

sudo ufw deny 11796/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 11796" -Direction Inbound -LocalPort 11796 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 11796 used for?

Port 11796 is assigned by IANA to lanschool (LanSchool), lanschool-mpt (Lanschool Multipoint).

Is port 11796 TCP or UDP?

Port 11796 is registered for TCP and UDP.

Is it safe to open port 11796?

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 11796 is open?

On Linux run "ss -ltnup 'sport = :11796'", on macOS "lsof -nP -i :11796", and on Windows "netstat -ano | findstr :11796" to see the local process. From another machine, "nmap -p 11796 <host>" shows whether it is reachable.

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