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// Other services

Port 9374: fjdmimgr

Port 9374 is assigned by IANA to fjdmimgr (fjdmimgr).

9374

How fjdmimgr works

Other services
client:9374fjdmimgrresponse client:9374fjdmimgrresponse

The client sends a request to port 9374 and the fjdmimgr 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 9374 dangerous?

We have no specific security note for port 9374. 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 9374

ServicePortTransportDescriptionReferenceUpdated
fjdmimgr 9374 TCP, UDP fjdmimgr - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 9374, and is it reachable?

Linux

sudo ss -ltnup 'sport = :9374'      # process listening on 9374
sudo lsof -nP -i :9374

macOS

sudo lsof -nP -i :9374

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 9374 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 9374
netstat -ano | findstr :9374

From another machine

nmap -p 9374 -sV <host>
sudo nmap -sU -p 9374 <host>
nc -zv <host> 9374

Block it in the firewall

sudo ufw deny 9374/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 9374" -Direction Inbound -LocalPort 9374 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 9374 used for?

Port 9374 is assigned by IANA to fjdmimgr (fjdmimgr).

Is port 9374 TCP or UDP?

Port 9374 is registered for TCP and UDP.

Is it safe to open port 9374?

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 9374 is open?

On Linux run "ss -ltnup 'sport = :9374'", on macOS "lsof -nP -i :9374", and on Windows "netstat -ano | findstr :9374" to see the local process. From another machine, "nmap -p 9374 <host>" shows whether it is reachable.

05 Related
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