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// Other services

Port 1824: metrics-pas

Port 1824 is assigned by IANA to metrics-pas (metrics-pas).

1824

How metrics-pas works

Other services
client:1824metrics-pasresponse client:1824metrics-pasresponse

The client sends a request to port 1824 and the metrics-pas 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 1824 dangerous?

We have no specific security note for port 1824. 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 1824

ServicePortTransportDescriptionReferenceUpdated
metrics-pas 1824 TCP, UDP metrics-pas - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1824, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1824'      # process listening on 1824
sudo lsof -nP -i :1824

macOS

sudo lsof -nP -i :1824

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1824 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1824
netstat -ano | findstr :1824

From another machine

nmap -p 1824 -sV <host>
sudo nmap -sU -p 1824 <host>
nc -zv <host> 1824

Block it in the firewall

sudo ufw deny 1824/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1824" -Direction Inbound -LocalPort 1824 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1824 used for?

Port 1824 is assigned by IANA to metrics-pas (metrics-pas).

Is port 1824 TCP or UDP?

Port 1824 is registered for TCP and UDP.

Is it safe to open port 1824?

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 1824 is open?

On Linux run "ss -ltnup 'sport = :1824'", on macOS "lsof -nP -i :1824", and on Windows "netstat -ano | findstr :1824" to see the local process. From another machine, "nmap -p 1824 <host>" shows whether it is reachable.

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