CyberHunter
Local dataset, no network
// Other services

Port 2170: EyeTV Server Port

Port 2170 is assigned by IANA to eyetv (EyeTV Server Port).

2170

How eyetv works

Other services
client:2170eyetvresponse client:2170eyetvresponse

The client sends a request to port 2170 and the eyetv 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 2170 dangerous?

We have no specific security note for port 2170. 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 2170

ServicePortTransportDescriptionReferenceUpdated
eyetv 2170 TCP, UDP EyeTV Server Port - 2004-11

// source: IANA service name and port number registry

03 Check it

Which program uses port 2170, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2170'      # process listening on 2170
sudo lsof -nP -i :2170

macOS

sudo lsof -nP -i :2170

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2170 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2170
netstat -ano | findstr :2170

From another machine

nmap -p 2170 -sV <host>
sudo nmap -sU -p 2170 <host>
nc -zv <host> 2170

Block it in the firewall

sudo ufw deny 2170/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2170" -Direction Inbound -LocalPort 2170 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2170 used for?

Port 2170 is assigned by IANA to eyetv (EyeTV Server Port).

Is port 2170 TCP or UDP?

Port 2170 is registered for TCP and UDP.

Is it safe to open port 2170?

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 2170 is open?

On Linux run "ss -ltnup 'sport = :2170'", on macOS "lsof -nP -i :2170", and on Windows "netstat -ano | findstr :2170" to see the local process. From another machine, "nmap -p 2170 <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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