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// Databases & caches

Port 43441: Cisco NetMgmt DB Ports

Port 43441 is assigned by IANA to ciscocsdb (Cisco NetMgmt DB Ports).

43441

How ciscocsdb works

Databases & caches
app:43441ciscocsdb app:43441ciscocsdb

The application sends a SQL query to the ciscocsdb server on port 43441, 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 43441 dangerous?

We have no specific security note for port 43441. 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 43441

ServicePortTransportDescriptionReferenceUpdated
ciscocsdb 43441 TCP, UDP Cisco NetMgmt DB Ports - 2005-11

// source: IANA service name and port number registry

03 Check it

Which program uses port 43441, and is it reachable?

Linux

sudo ss -ltnup 'sport = :43441'      # process listening on 43441
sudo lsof -nP -i :43441

macOS

sudo lsof -nP -i :43441

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 43441 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 43441
netstat -ano | findstr :43441

From another machine

nmap -p 43441 -sV <host>
sudo nmap -sU -p 43441 <host>
nc -zv <host> 43441

Block it in the firewall

sudo ufw deny 43441/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 43441" -Direction Inbound -LocalPort 43441 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 43441 used for?

Port 43441 is assigned by IANA to ciscocsdb (Cisco NetMgmt DB Ports).

Is port 43441 TCP or UDP?

Port 43441 is registered for TCP and UDP.

Is it safe to open port 43441?

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 43441 is open?

On Linux run "ss -ltnup 'sport = :43441'", on macOS "lsof -nP -i :43441", and on Windows "netstat -ano | findstr :43441" to see the local process. From another machine, "nmap -p 43441 <host>" shows whether it is reachable.

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