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// Other services

Port 2867: esps-portal

Port 2867 is assigned by IANA to esps-portal (esps-portal).

2867

How esps-portal works

Other services
client:2867esps-portalresponse client:2867esps-portalresponse

The client sends a request to port 2867 and the esps-portal 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 2867 dangerous?

We have no specific security note for port 2867. 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 2867

ServicePortTransportDescriptionReferenceUpdated
esps-portal 2867 TCP, UDP esps-portal - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2867, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2867'      # process listening on 2867
sudo lsof -nP -i :2867

macOS

sudo lsof -nP -i :2867

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2867 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2867
netstat -ano | findstr :2867

From another machine

nmap -p 2867 -sV <host>
sudo nmap -sU -p 2867 <host>
nc -zv <host> 2867

Block it in the firewall

sudo ufw deny 2867/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2867" -Direction Inbound -LocalPort 2867 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2867 used for?

Port 2867 is assigned by IANA to esps-portal (esps-portal).

Is port 2867 TCP or UDP?

Port 2867 is registered for TCP and UDP.

Is it safe to open port 2867?

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 2867 is open?

On Linux run "ss -ltnup 'sport = :2867'", on macOS "lsof -nP -i :2867", and on Windows "netstat -ano | findstr :2867" to see the local process. From another machine, "nmap -p 2867 <host>" shows whether it is reachable.

05 Related
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