CyberHunter
Local dataset, no network
// Other services

Port 3213: NEON 24X7 Mission Control

Port 3213 is assigned by IANA to neon24x7 (NEON 24X7 Mission Control).

3213

How neon24x7 works

Other services
client:3213neon24x7response client:3213neon24x7response

The client sends a request to port 3213 and the neon24x7 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 3213 dangerous?

We have no specific security note for port 3213. 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 3213

ServicePortTransportDescriptionReferenceUpdated
neon24x7 3213 TCP, UDP NEON 24X7 Mission Control - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 3213, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3213'      # process listening on 3213
sudo lsof -nP -i :3213

macOS

sudo lsof -nP -i :3213

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3213 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3213
netstat -ano | findstr :3213

From another machine

nmap -p 3213 -sV <host>
sudo nmap -sU -p 3213 <host>
nc -zv <host> 3213

Block it in the firewall

sudo ufw deny 3213/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3213" -Direction Inbound -LocalPort 3213 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3213 used for?

Port 3213 is assigned by IANA to neon24x7 (NEON 24X7 Mission Control).

Is port 3213 TCP or UDP?

Port 3213 is registered for TCP and UDP.

Is it safe to open port 3213?

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 3213 is open?

On Linux run "ss -ltnup 'sport = :3213'", on macOS "lsof -nP -i :3213", and on Windows "netstat -ano | findstr :3213" to see the local process. From another machine, "nmap -p 3213 <host>" shows whether it is reachable.

05 Related
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