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Local dataset, no network
// Databases & caches

Port 5343: Sculptor Database Server

Port 5343 is assigned by IANA to kfserver (Sculptor Database Server).

5343

How kfserver works

Databases & caches
app:5343kfserver app:5343kfserver

The application sends a SQL query to the kfserver server on port 5343, 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 5343 dangerous?

We have no specific security note for port 5343. 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 5343

ServicePortTransportDescriptionReferenceUpdated
kfserver 5343 TCP, UDP Sculptor Database Server - 2005-12

// source: IANA service name and port number registry

03 Check it

Which program uses port 5343, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5343'      # process listening on 5343
sudo lsof -nP -i :5343

macOS

sudo lsof -nP -i :5343

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5343 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5343
netstat -ano | findstr :5343

From another machine

nmap -p 5343 -sV <host>
sudo nmap -sU -p 5343 <host>
nc -zv <host> 5343

Block it in the firewall

sudo ufw deny 5343/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5343" -Direction Inbound -LocalPort 5343 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 5343 used for?

Port 5343 is assigned by IANA to kfserver (Sculptor Database Server).

Is port 5343 TCP or UDP?

Port 5343 is registered for TCP and UDP.

Is it safe to open port 5343?

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 5343 is open?

On Linux run "ss -ltnup 'sport = :5343'", on macOS "lsof -nP -i :5343", and on Windows "netstat -ano | findstr :5343" to see the local process. From another machine, "nmap -p 5343 <host>" shows whether it is reachable.

05 Related
:3306 MySQL / MariaDB tcp · udp · high risk :1433 Microsoft SQL Server tcp · udp · high risk :5432 PostgreSQL tcp · udp · high risk :6379 Redis tcp · critical risk :27017 MongoDB tcp · critical risk :9200 Elasticsearch tcp · udp · critical risk :1521 Oracle Database tcp · udp · high risk :11211 Memcached tcp · udp · high risk

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