CyberHunter
LinkedIn profile - Bastien Cordier Email: contact@bastiencordier.pro
// Other services

Port 3415: BCI Name Service

Port 3415 is assigned by IANA to bcinameservice (BCI Name Service).

3415

How bcinameservice works

Other services
client:3415bcinameserviceresponse client:3415bcinameserviceresponse

The client sends a request to port 3415 and the bcinameservice 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 3415 dangerous?

We have no specific security note for port 3415. 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 3415

ServicePortTransportDescriptionReferenceUpdated
bcinameservice 3415 TCP, UDP BCI Name Service - 2002-02

// source: IANA service name and port number registry

03 Check it

Which program uses port 3415, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3415'      # process listening on 3415
sudo lsof -nP -i :3415

macOS

sudo lsof -nP -i :3415

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3415 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3415
netstat -ano | findstr :3415

From another machine

nmap -p 3415 -sV <host>
sudo nmap -sU -p 3415 <host>
nc -zv <host> 3415

Block it in the firewall

sudo ufw deny 3415/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3415" -Direction Inbound -LocalPort 3415 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3415 used for?

Port 3415 is assigned by IANA to bcinameservice (BCI Name Service).

Is port 3415 TCP or UDP?

Port 3415 is registered for TCP and UDP.

Is it safe to open port 3415?

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 3415 is open?

On Linux run "ss -ltnup 'sport = :3415'", on macOS "lsof -nP -i :3415", and on Windows "netstat -ano | findstr :3415" to see the local process. From another machine, "nmap -p 3415 <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

Latest vulnerability news

All news