CyberHunter
Local dataset, no network
// Other services

Port 25006: icl-twobase7

Port 25006 is assigned by IANA to icl-twobase7 (icl-twobase7).

25006

How icl-twobase7 works

Other services
client:25006icl-twobase7response client:25006icl-twobase7response

The client sends a request to port 25006 and the icl-twobase7 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 25006 dangerous?

We have no specific security note for port 25006. 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 25006

ServicePortTransportDescriptionReferenceUpdated
icl-twobase7 25006 TCP, UDP icl-twobase7 - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 25006, and is it reachable?

Linux

sudo ss -ltnup 'sport = :25006'      # process listening on 25006
sudo lsof -nP -i :25006

macOS

sudo lsof -nP -i :25006

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 25006 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 25006
netstat -ano | findstr :25006

From another machine

nmap -p 25006 -sV <host>
sudo nmap -sU -p 25006 <host>
nc -zv <host> 25006

Block it in the firewall

sudo ufw deny 25006/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 25006" -Direction Inbound -LocalPort 25006 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 25006 used for?

Port 25006 is assigned by IANA to icl-twobase7 (icl-twobase7).

Is port 25006 TCP or UDP?

Port 25006 is registered for TCP and UDP.

Is it safe to open port 25006?

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 25006 is open?

On Linux run "ss -ltnup 'sport = :25006'", on macOS "lsof -nP -i :25006", and on Windows "netstat -ano | findstr :25006" to see the local process. From another machine, "nmap -p 25006 <host>" shows whether it is reachable.

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