CyberHunter
Local dataset, no network
// Other services

Port 7633: PMDF Management

Port 7633 is assigned by IANA to pmdfmgt (PMDF Management).

7633

How pmdfmgt works

Other services
client:7633pmdfmgtresponse client:7633pmdfmgtresponse

The client sends a request to port 7633 and the pmdfmgt 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 7633 dangerous?

We have no specific security note for port 7633. 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 7633

ServicePortTransportDescriptionReferenceUpdated
pmdfmgt 7633 TCP, UDP PMDF Management - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 7633, and is it reachable?

Linux

sudo ss -ltnup 'sport = :7633'      # process listening on 7633
sudo lsof -nP -i :7633

macOS

sudo lsof -nP -i :7633

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 7633 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 7633
netstat -ano | findstr :7633

From another machine

nmap -p 7633 -sV <host>
sudo nmap -sU -p 7633 <host>
nc -zv <host> 7633

Block it in the firewall

sudo ufw deny 7633/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 7633" -Direction Inbound -LocalPort 7633 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 7633 used for?

Port 7633 is assigned by IANA to pmdfmgt (PMDF Management).

Is port 7633 TCP or UDP?

Port 7633 is registered for TCP and UDP.

Is it safe to open port 7633?

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 7633 is open?

On Linux run "ss -ltnup 'sport = :7633'", on macOS "lsof -nP -i :7633", and on Windows "netstat -ano | findstr :7633" to see the local process. From another machine, "nmap -p 7633 <host>" shows whether it is reachable.

05 Related
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