CyberHunter
Local dataset, no network
// Other services

Port 2819: FC Fault Notification

Port 2819 is assigned by IANA to fc-faultnotify (FC Fault Notification).

2819

How fc-faultnotify works

Other services
client:2819fc-faultnotifyresponse client:2819fc-faultnotifyresponse

The client sends a request to port 2819 and the fc-faultnotify 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 2819 dangerous?

We have no specific security note for port 2819. 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 2819

ServicePortTransportDescriptionReferenceUpdated
fc-faultnotify 2819 TCP, UDP FC Fault Notification - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2819, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2819'      # process listening on 2819
sudo lsof -nP -i :2819

macOS

sudo lsof -nP -i :2819

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2819 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2819
netstat -ano | findstr :2819

From another machine

nmap -p 2819 -sV <host>
sudo nmap -sU -p 2819 <host>
nc -zv <host> 2819

Block it in the firewall

sudo ufw deny 2819/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2819" -Direction Inbound -LocalPort 2819 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2819 used for?

Port 2819 is assigned by IANA to fc-faultnotify (FC Fault Notification).

Is port 2819 TCP or UDP?

Port 2819 is registered for TCP and UDP.

Is it safe to open port 2819?

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 2819 is open?

On Linux run "ss -ltnup 'sport = :2819'", on macOS "lsof -nP -i :2819", and on Windows "netstat -ano | findstr :2819" to see the local process. From another machine, "nmap -p 2819 <host>" shows whether it is reachable.

05 Related
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