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// Other services

Port 286: FXP Communication

Port 286 is assigned by IANA to fxp (FXP Communication).

286

How fxp works

Other services
client:286fxpresponse client:286fxpresponse

The client sends a request to port 286 and the fxp 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 286 dangerous?

We have no specific security note for port 286. 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 286

ServicePortTransportDescriptionReferenceUpdated
fxp 286 TCP, UDP FXP Communication - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 286, and is it reachable?

Linux

sudo ss -ltnup 'sport = :286'      # process listening on 286
sudo lsof -nP -i :286

macOS

sudo lsof -nP -i :286

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 286 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 286
netstat -ano | findstr :286

From another machine

nmap -p 286 -sV <host>
sudo nmap -sU -p 286 <host>
nc -zv <host> 286

Block it in the firewall

sudo ufw deny 286/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 286" -Direction Inbound -LocalPort 286 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 286 used for?

Port 286 is assigned by IANA to fxp (FXP Communication).

Is port 286 TCP or UDP?

Port 286 is registered for TCP and UDP.

Is it safe to open port 286?

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 286 is open?

On Linux run "ss -ltnup 'sport = :286'", on macOS "lsof -nP -i :286", and on Windows "netstat -ano | findstr :286" to see the local process. From another machine, "nmap -p 286 <host>" shows whether it is reachable.

05 Related
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