CyberHunter
Local dataset, no network
// Other services

Port 2307: pehelp

Port 2307 is assigned by IANA to pehelp (pehelp).

2307

How pehelp works

Other services
client:2307pehelpresponse client:2307pehelpresponse

The client sends a request to port 2307 and the pehelp 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 2307 dangerous?

We have no specific security note for port 2307. 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 2307

ServicePortTransportDescriptionReferenceUpdated
pehelp 2307 TCP, UDP pehelp - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2307, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2307'      # process listening on 2307
sudo lsof -nP -i :2307

macOS

sudo lsof -nP -i :2307

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2307 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2307
netstat -ano | findstr :2307

From another machine

nmap -p 2307 -sV <host>
sudo nmap -sU -p 2307 <host>
nc -zv <host> 2307

Block it in the firewall

sudo ufw deny 2307/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2307" -Direction Inbound -LocalPort 2307 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2307 used for?

Port 2307 is assigned by IANA to pehelp (pehelp).

Is port 2307 TCP or UDP?

Port 2307 is registered for TCP and UDP.

Is it safe to open port 2307?

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 2307 is open?

On Linux run "ss -ltnup 'sport = :2307'", on macOS "lsof -nP -i :2307", and on Windows "netstat -ano | findstr :2307" to see the local process. From another machine, "nmap -p 2307 <host>" shows whether it is reachable.

05 Related
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