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// Other services

Port 1487: LocalInfoSrvr

Port 1487 is assigned by IANA to localinfosrvr (LocalInfoSrvr).

1487

How localinfosrvr works

Other services
client:1487localinfosrvrresponse client:1487localinfosrvrresponse

The client sends a request to port 1487 and the localinfosrvr 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 1487 dangerous?

We have no specific security note for port 1487. 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 1487

ServicePortTransportDescriptionReferenceUpdated
localinfosrvr 1487 TCP, UDP LocalInfoSrvr - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1487, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1487'      # process listening on 1487
sudo lsof -nP -i :1487

macOS

sudo lsof -nP -i :1487

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1487 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1487
netstat -ano | findstr :1487

From another machine

nmap -p 1487 -sV <host>
sudo nmap -sU -p 1487 <host>
nc -zv <host> 1487

Block it in the firewall

sudo ufw deny 1487/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1487" -Direction Inbound -LocalPort 1487 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1487 used for?

Port 1487 is assigned by IANA to localinfosrvr (LocalInfoSrvr).

Is port 1487 TCP or UDP?

Port 1487 is registered for TCP and UDP.

Is it safe to open port 1487?

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 1487 is open?

On Linux run "ss -ltnup 'sport = :1487'", on macOS "lsof -nP -i :1487", and on Windows "netstat -ano | findstr :1487" to see the local process. From another machine, "nmap -p 1487 <host>" shows whether it is reachable.

05 Related
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