CyberHunter
Local dataset, no network
// Other services

Port 1871: Cano Central 0

Port 1871 is assigned by IANA to canocentral0 (Cano Central 0).

1871

How canocentral0 works

Other services
client:1871canocentral0response client:1871canocentral0response

The client sends a request to port 1871 and the canocentral0 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 1871 dangerous?

We have no specific security note for port 1871. 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 1871

ServicePortTransportDescriptionReferenceUpdated
canocentral0 1871 TCP, UDP Cano Central 0 - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1871, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1871'      # process listening on 1871
sudo lsof -nP -i :1871

macOS

sudo lsof -nP -i :1871

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1871 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1871
netstat -ano | findstr :1871

From another machine

nmap -p 1871 -sV <host>
sudo nmap -sU -p 1871 <host>
nc -zv <host> 1871

Block it in the firewall

sudo ufw deny 1871/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1871" -Direction Inbound -LocalPort 1871 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1871 used for?

Port 1871 is assigned by IANA to canocentral0 (Cano Central 0).

Is port 1871 TCP or UDP?

Port 1871 is registered for TCP and UDP.

Is it safe to open port 1871?

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 1871 is open?

On Linux run "ss -ltnup 'sport = :1871'", on macOS "lsof -nP -i :1871", and on Windows "netstat -ano | findstr :1871" to see the local process. From another machine, "nmap -p 1871 <host>" shows whether it is reachable.

05 Related
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