CyberHunter
Local dataset, no network
// Other services

Port 3410: NetworkLens SSL Event

Port 3410 is assigned by IANA to networklenss (NetworkLens SSL Event).

3410

How networklenss works

Other services
client:3410networklenssresponse client:3410networklenssresponse

The client sends a request to port 3410 and the networklenss 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)
01 Security

Is port 3410 dangerous?

We have no specific security note for port 3410. 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 3410

ServicePortTransportDescriptionReferenceUpdated
networklenss 3410 TCP, UDP NetworkLens SSL Event - 2002-02

// source: IANA service name and port number registry

03 Check it

Which program uses port 3410, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3410'      # process listening on 3410
sudo lsof -nP -i :3410

macOS

sudo lsof -nP -i :3410

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3410 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3410
netstat -ano | findstr :3410

From another machine

nmap -p 3410 -sV <host>
sudo nmap -sU -p 3410 <host>
nc -zv <host> 3410

Block it in the firewall

sudo ufw deny 3410/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3410" -Direction Inbound -LocalPort 3410 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3410 used for?

Port 3410 is assigned by IANA to networklenss (NetworkLens SSL Event).

Is port 3410 TCP or UDP?

Port 3410 is registered for TCP and UDP.

Is it safe to open port 3410?

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 3410 is open?

On Linux run "ss -ltnup 'sport = :3410'", on macOS "lsof -nP -i :3410", and on Windows "netstat -ano | findstr :3410" to see the local process. From another machine, "nmap -p 3410 <host>" shows whether it is reachable.

05 Related

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