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// Databases & caches

Port 2690: HP NNM Embedded Database

Port 2690 is assigned by IANA to hp-nnm-data (HP NNM Embedded Database).

2690

How hp-nnm-data works

Databases & caches
app:2690hp-nnm-data app:2690hp-nnm-data

The application sends a SQL query to the hp-nnm-data server on port 2690, 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 2690 dangerous?

We have no specific security note for port 2690. 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 2690

ServicePortTransportDescriptionReferenceUpdated
hp-nnm-data 2690 TCP, UDP HP NNM Embedded Database - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 2690, and is it reachable?

Linux

sudo ss -ltnup 'sport = :2690'      # process listening on 2690
sudo lsof -nP -i :2690

macOS

sudo lsof -nP -i :2690

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 2690 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 2690
netstat -ano | findstr :2690

From another machine

nmap -p 2690 -sV <host>
sudo nmap -sU -p 2690 <host>
nc -zv <host> 2690

Block it in the firewall

sudo ufw deny 2690/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 2690" -Direction Inbound -LocalPort 2690 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 2690 used for?

Port 2690 is assigned by IANA to hp-nnm-data (HP NNM Embedded Database).

Is port 2690 TCP or UDP?

Port 2690 is registered for TCP and UDP.

Is it safe to open port 2690?

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 2690 is open?

On Linux run "ss -ltnup 'sport = :2690'", on macOS "lsof -nP -i :2690", and on Windows "netstat -ano | findstr :2690" to see the local process. From another machine, "nmap -p 2690 <host>" shows whether it is reachable.

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