CyberHunter
Local dataset, no network
// Other services

Port 4061: Ice Location Service (TCP)

Port 4061 is assigned by IANA to ice-location (Ice Location Service (TCP)).

4061

How ice-location works

Other services
client:4061ice-locationresponse client:4061ice-locationresponse

The client sends a request to port 4061 and the ice-location 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 4061 dangerous?

We have no specific security note for port 4061. 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 4061

ServicePortTransportDescriptionReferenceUpdated
ice-location 4061 TCP, UDP Ice Location Service (TCP) - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 4061, and is it reachable?

Linux

sudo ss -ltnup 'sport = :4061'      # process listening on 4061
sudo lsof -nP -i :4061

macOS

sudo lsof -nP -i :4061

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 4061 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 4061
netstat -ano | findstr :4061

From another machine

nmap -p 4061 -sV <host>
sudo nmap -sU -p 4061 <host>
nc -zv <host> 4061

Block it in the firewall

sudo ufw deny 4061/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 4061" -Direction Inbound -LocalPort 4061 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 4061 used for?

Port 4061 is assigned by IANA to ice-location (Ice Location Service (TCP)).

Is port 4061 TCP or UDP?

Port 4061 is registered for TCP and UDP.

Is it safe to open port 4061?

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 4061 is open?

On Linux run "ss -ltnup 'sport = :4061'", on macOS "lsof -nP -i :4061", and on Windows "netstat -ano | findstr :4061" to see the local process. From another machine, "nmap -p 4061 <host>" shows whether it is reachable.

05 Related

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