CyberHunter
Local dataset, no network
// Other services

Port 886: ICL coNETion locate server

Port 886 is assigned by IANA to iclcnet-locate (ICL coNETion locate server).

886

How iclcnet-locate works

Other services
client:886iclcnet-locateresponse client:886iclcnet-locateresponse

The client sends a request to port 886 and the iclcnet-locate 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
Well-known (0-1023)
Category
Other services
01 Security

Is port 886 dangerous?

We have no specific security note for port 886. 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 886

ServicePortTransportDescriptionReferenceUpdated
iclcnet-locate 886 TCP, UDP ICL coNETion locate server - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 886, and is it reachable?

Linux

sudo ss -ltnup 'sport = :886'      # process listening on 886
sudo lsof -nP -i :886

macOS

sudo lsof -nP -i :886

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 886 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 886
netstat -ano | findstr :886

From another machine

nmap -p 886 -sV <host>
sudo nmap -sU -p 886 <host>
nc -zv <host> 886

Block it in the firewall

sudo ufw deny 886/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 886" -Direction Inbound -LocalPort 886 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 886 used for?

Port 886 is assigned by IANA to iclcnet-locate (ICL coNETion locate server).

Is port 886 TCP or UDP?

Port 886 is registered for TCP and UDP.

Is it safe to open port 886?

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 886 is open?

On Linux run "ss -ltnup 'sport = :886'", on macOS "lsof -nP -i :886", and on Windows "netstat -ano | findstr :886" to see the local process. From another machine, "nmap -p 886 <host>" shows whether it is reachable.

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