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// Other services

Port 2088: IP Busy Lamp Field

Port 2088 is assigned by IANA to ip-blf (IP Busy Lamp Field).

2088

How ip-blf works

Other services
client:2088ip-blfresponse client:2088ip-blfresponse

The client sends a request to port 2088 and the ip-blf 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 2088 dangerous?

We have no specific security note for port 2088. 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 2088

ServicePortTransportDescriptionReferenceUpdated
ip-blf 2088 TCP, UDP IP Busy Lamp Field - 2005-02

// source: IANA service name and port number registry

03 Check it

Which program uses port 2088, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2088'      # process listening on 2088
sudo lsof -nP -i :2088

macOS

sudo lsof -nP -i :2088

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2088 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2088
netstat -ano | findstr :2088

From another machine

nmap -p 2088 -sV <host>
sudo nmap -sU -p 2088 <host>
nc -zv <host> 2088

Block it in the firewall

sudo ufw deny 2088/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2088" -Direction Inbound -LocalPort 2088 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2088 used for?

Port 2088 is assigned by IANA to ip-blf (IP Busy Lamp Field).

Is port 2088 TCP or UDP?

Port 2088 is registered for TCP and UDP.

Is it safe to open port 2088?

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 2088 is open?

On Linux run "ss -ltnup 'sport = :2088'", on macOS "lsof -nP -i :2088", and on Windows "netstat -ano | findstr :2088" to see the local process. From another machine, "nmap -p 2088 <host>" shows whether it is reachable.

05 Related
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