CyberHunter
Local dataset, no network
// Other services

Port 36001: AllPeers Network

Port 36001 is assigned by IANA to allpeers (AllPeers Network).

36001

How allpeers works

Other services
client:36001allpeersresponse client:36001allpeersresponse

The client sends a request to port 36001 and the allpeers 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 36001 dangerous?

We have no specific security note for port 36001. 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 36001

ServicePortTransportDescriptionReferenceUpdated
allpeers 36001 TCP, UDP AllPeers Network - 2007-04

// source: IANA service name and port number registry

03 Check it

Which program uses port 36001, and is it reachable?

Linux

sudo ss -ltnup 'sport = :36001'      # process listening on 36001
sudo lsof -nP -i :36001

macOS

sudo lsof -nP -i :36001

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 36001 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 36001
netstat -ano | findstr :36001

From another machine

nmap -p 36001 -sV <host>
sudo nmap -sU -p 36001 <host>
nc -zv <host> 36001

Block it in the firewall

sudo ufw deny 36001/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 36001" -Direction Inbound -LocalPort 36001 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 36001 used for?

Port 36001 is assigned by IANA to allpeers (AllPeers Network).

Is port 36001 TCP or UDP?

Port 36001 is registered for TCP and UDP.

Is it safe to open port 36001?

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 36001 is open?

On Linux run "ss -ltnup 'sport = :36001'", on macOS "lsof -nP -i :36001", and on Windows "netstat -ano | findstr :36001" to see the local process. From another machine, "nmap -p 36001 <host>" shows whether it is reachable.

05 Related
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp

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