CyberHunter
Local dataset, no network
// Other services

Port 2884: Flash Msg

Port 2884 is assigned by IANA to flashmsg (Flash Msg).

2884

How flashmsg works

Other services
client:2884flashmsgresponse client:2884flashmsgresponse

The client sends a request to port 2884 and the flashmsg 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 2884 dangerous?

We have no specific security note for port 2884. 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 2884

ServicePortTransportDescriptionReferenceUpdated
flashmsg 2884 TCP, UDP Flash Msg - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2884, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2884'      # process listening on 2884
sudo lsof -nP -i :2884

macOS

sudo lsof -nP -i :2884

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2884 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2884
netstat -ano | findstr :2884

From another machine

nmap -p 2884 -sV <host>
sudo nmap -sU -p 2884 <host>
nc -zv <host> 2884

Block it in the firewall

sudo ufw deny 2884/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2884" -Direction Inbound -LocalPort 2884 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2884 used for?

Port 2884 is assigned by IANA to flashmsg (Flash Msg).

Is port 2884 TCP or UDP?

Port 2884 is registered for TCP and UDP.

Is it safe to open port 2884?

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 2884 is open?

On Linux run "ss -ltnup 'sport = :2884'", on macOS "lsof -nP -i :2884", and on Windows "netstat -ano | findstr :2884" to see the local process. From another machine, "nmap -p 2884 <host>" shows whether it is reachable.

05 Related
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