CyberHunter
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// Other services

Port 2364: OI-2000

Port 2364 is assigned by IANA to oi-2000 (OI-2000).

2364

How oi-2000 works

Other services
client:2364oi-2000response client:2364oi-2000response

The client sends a request to port 2364 and the oi-2000 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 2364 dangerous?

We have no specific security note for port 2364. 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 2364

ServicePortTransportDescriptionReferenceUpdated
oi-2000 2364 TCP, UDP OI-2000 - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2364, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2364'      # process listening on 2364
sudo lsof -nP -i :2364

macOS

sudo lsof -nP -i :2364

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2364 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2364
netstat -ano | findstr :2364

From another machine

nmap -p 2364 -sV <host>
sudo nmap -sU -p 2364 <host>
nc -zv <host> 2364

Block it in the firewall

sudo ufw deny 2364/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2364" -Direction Inbound -LocalPort 2364 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2364 used for?

Port 2364 is assigned by IANA to oi-2000 (OI-2000).

Is port 2364 TCP or UDP?

Port 2364 is registered for TCP and UDP.

Is it safe to open port 2364?

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 2364 is open?

On Linux run "ss -ltnup 'sport = :2364'", on macOS "lsof -nP -i :2364", and on Windows "netstat -ano | findstr :2364" to see the local process. From another machine, "nmap -p 2364 <host>" shows whether it is reachable.

05 Related
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