CyberHunter
Local dataset, no network
// Other services

Port 3507: Nesh Broker Port

Port 3507 is assigned by IANA to nesh-broker (Nesh Broker Port).

3507

How nesh-broker works

Other services
client:3507nesh-brokerresponse client:3507nesh-brokerresponse

The client sends a request to port 3507 and the nesh-broker 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 3507 dangerous?

We have no specific security note for port 3507. 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 3507

ServicePortTransportDescriptionReferenceUpdated
nesh-broker 3507 TCP, UDP Nesh Broker Port - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 3507, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3507'      # process listening on 3507
sudo lsof -nP -i :3507

macOS

sudo lsof -nP -i :3507

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3507 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3507
netstat -ano | findstr :3507

From another machine

nmap -p 3507 -sV <host>
sudo nmap -sU -p 3507 <host>
nc -zv <host> 3507

Block it in the firewall

sudo ufw deny 3507/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3507" -Direction Inbound -LocalPort 3507 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3507 used for?

Port 3507 is assigned by IANA to nesh-broker (Nesh Broker Port).

Is port 3507 TCP or UDP?

Port 3507 is registered for TCP and UDP.

Is it safe to open port 3507?

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 3507 is open?

On Linux run "ss -ltnup 'sport = :3507'", on macOS "lsof -nP -i :3507", and on Windows "netstat -ano | findstr :3507" to see the local process. From another machine, "nmap -p 3507 <host>" shows whether it is reachable.

05 Related
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