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// Databases & caches

Port 1809: Oracle-VP1

Port 1809 is assigned by IANA to oracle-vp1 (Oracle-VP1).

1809

How oracle-vp1 works

Databases & caches
app:1809oracle-vp1 app:1809oracle-vp1

The application sends a SQL query to the oracle-vp1 server on port 1809, which returns rows from its tables.

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
Databases & caches
01 Security

Is port 1809 dangerous?

We have no specific security note for port 1809. Its risk depends on the program actually listening on it. General advice for databases & caches services:

  • Bind the service to localhost or a private network, never to a public address.
  • Enable authentication, use per-application accounts and require TLS.
  • Watch for exposed Docker ports: publish them on 127.0.0.1 only.
02 Registry

IANA registry entries for port 1809

ServicePortTransportDescriptionReferenceUpdated
oracle-vp1 1809 TCP, UDP Oracle-VP1 - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1809, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1809'      # process listening on 1809
sudo lsof -nP -i :1809

macOS

sudo lsof -nP -i :1809

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1809 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1809
netstat -ano | findstr :1809

From another machine

nmap -p 1809 -sV <host>
sudo nmap -sU -p 1809 <host>
nc -zv <host> 1809

Block it in the firewall

sudo ufw deny 1809/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1809" -Direction Inbound -LocalPort 1809 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1809 used for?

Port 1809 is assigned by IANA to oracle-vp1 (Oracle-VP1).

Is port 1809 TCP or UDP?

Port 1809 is registered for TCP and UDP.

Is it safe to open port 1809?

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. Bind the service to localhost or a private network, never to a public address.

How do I check if port 1809 is open?

On Linux run "ss -ltnup 'sport = :1809'", on macOS "lsof -nP -i :1809", and on Windows "netstat -ano | findstr :1809" to see the local process. From another machine, "nmap -p 1809 <host>" shows whether it is reachable.

05 Related
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