CyberHunter
Local dataset, no network
// Other services

Port 2888: SPCSDLOBBY

Port 2888 is assigned by IANA to spcsdlobby (SPCSDLOBBY).

2888

How spcsdlobby works

Other services
client:2888spcsdlobbyresponse client:2888spcsdlobbyresponse

The client sends a request to port 2888 and the spcsdlobby 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 2888 dangerous?

We have no specific security note for port 2888. 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 2888

ServicePortTransportDescriptionReferenceUpdated
spcsdlobby 2888 TCP, UDP SPCSDLOBBY - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2888, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2888'      # process listening on 2888
sudo lsof -nP -i :2888

macOS

sudo lsof -nP -i :2888

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2888 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2888
netstat -ano | findstr :2888

From another machine

nmap -p 2888 -sV <host>
sudo nmap -sU -p 2888 <host>
nc -zv <host> 2888

Block it in the firewall

sudo ufw deny 2888/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2888" -Direction Inbound -LocalPort 2888 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2888 used for?

Port 2888 is assigned by IANA to spcsdlobby (SPCSDLOBBY).

Is port 2888 TCP or UDP?

Port 2888 is registered for TCP and UDP.

Is it safe to open port 2888?

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 2888 is open?

On Linux run "ss -ltnup 'sport = :2888'", on macOS "lsof -nP -i :2888", and on Windows "netstat -ano | findstr :2888" to see the local process. From another machine, "nmap -p 2888 <host>" shows whether it is reachable.

05 Related
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