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// Other services

Port 2718: PN REQUESTER 2

Port 2718 is assigned by IANA to pn-requester2 (PN REQUESTER 2).

2718

How pn-requester2 works

Other services
client:2718pn-requester2response client:2718pn-requester2response

The client sends a request to port 2718 and the pn-requester2 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 2718 dangerous?

We have no specific security note for port 2718. 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 2718

ServicePortTransportDescriptionReferenceUpdated
pn-requester2 2718 TCP, UDP PN REQUESTER 2 - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2718, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2718'      # process listening on 2718
sudo lsof -nP -i :2718

macOS

sudo lsof -nP -i :2718

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2718 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2718
netstat -ano | findstr :2718

From another machine

nmap -p 2718 -sV <host>
sudo nmap -sU -p 2718 <host>
nc -zv <host> 2718

Block it in the firewall

sudo ufw deny 2718/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2718" -Direction Inbound -LocalPort 2718 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2718 used for?

Port 2718 is assigned by IANA to pn-requester2 (PN REQUESTER 2).

Is port 2718 TCP or UDP?

Port 2718 is registered for TCP and UDP.

Is it safe to open port 2718?

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 2718 is open?

On Linux run "ss -ltnup 'sport = :2718'", on macOS "lsof -nP -i :2718", and on Windows "netstat -ano | findstr :2718" to see the local process. From another machine, "nmap -p 2718 <host>" shows whether it is reachable.

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