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// Other services

Port 2324: Cosmocall

Port 2324 is assigned by IANA to cosmocall (Cosmocall).

2324

How cosmocall works

Other services
client:2324cosmocallresponse client:2324cosmocallresponse

The client sends a request to port 2324 and the cosmocall 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 2324 dangerous?

We have no specific security note for port 2324. 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 2324

ServicePortTransportDescriptionReferenceUpdated
cosmocall 2324 TCP, UDP Cosmocall - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2324, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2324'      # process listening on 2324
sudo lsof -nP -i :2324

macOS

sudo lsof -nP -i :2324

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2324 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2324
netstat -ano | findstr :2324

From another machine

nmap -p 2324 -sV <host>
sudo nmap -sU -p 2324 <host>
nc -zv <host> 2324

Block it in the firewall

sudo ufw deny 2324/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2324" -Direction Inbound -LocalPort 2324 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2324 used for?

Port 2324 is assigned by IANA to cosmocall (Cosmocall).

Is port 2324 TCP or UDP?

Port 2324 is registered for TCP and UDP.

Is it safe to open port 2324?

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 2324 is open?

On Linux run "ss -ltnup 'sport = :2324'", on macOS "lsof -nP -i :2324", and on Windows "netstat -ano | findstr :2324" to see the local process. From another machine, "nmap -p 2324 <host>" shows whether it is reachable.

05 Related
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp

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