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// Other services

Port 9051: Fusion-io Central Manager Service

Port 9051 is assigned by IANA to fio-cmgmt (Fusion-io Central Manager Service).

9051

How fio-cmgmt works

Other services
client:9051fio-cmgmtresponse client:9051fio-cmgmtresponse

The client sends a request to port 9051 and the fio-cmgmt service answers.

Transport
TCP
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 9051 dangerous?

We have no specific security note for port 9051. 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 9051

ServicePortTransportDescriptionReferenceUpdated
fio-cmgmt 9051 TCP Fusion-io Central Manager Service - 2010-01-15
-9051-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 9051, and is it reachable?

Linux

sudo ss -ltnup 'sport = :9051'      # process listening on 9051
sudo lsof -nP -i :9051

macOS

sudo lsof -nP -i :9051

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 9051 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 9051
netstat -ano | findstr :9051

From another machine

nmap -p 9051 -sV <host>
nc -zv <host> 9051

Block it in the firewall

sudo ufw deny 9051/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 9051" -Direction Inbound -LocalPort 9051 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 9051 used for?

Port 9051 is assigned by IANA to fio-cmgmt (Fusion-io Central Manager Service).

Is port 9051 TCP or UDP?

Port 9051 is registered for TCP.

Is it safe to open port 9051?

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 9051 is open?

On Linux run "ss -ltnup 'sport = :9051'", on macOS "lsof -nP -i :9051", and on Windows "netstat -ano | findstr :9051" to see the local process. From another machine, "nmap -p 9051 <host>" shows whether it is reachable.

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