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// Databases & caches

Port 7574: Oracle Coherence Cluster Service

Port 7574 is assigned by IANA to coherence (Oracle Coherence Cluster Service), coherence-disc (Oracle Coherence Cluster discovery service).

7574

How coherence works

Databases & caches
app:7574coherence app:7574coherence

The application sends a SQL query to the coherence server on port 7574, 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
Assigned2 registered services
Range
Registered (1024-49151)
Category
Databases & caches
01 Security

Is port 7574 dangerous?

We have no specific security note for port 7574. 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 7574

ServicePortTransportDescriptionReferenceUpdated
coherence 7574 TCP Oracle Coherence Cluster Service - 2014-07-09
coherence-disc 7574 UDP Oracle Coherence Cluster discovery service - 2014-07-09

// source: IANA service name and port number registry

03 Check it

Which program uses port 7574, and is it reachable?

Linux

sudo ss -ltnup 'sport = :7574'      # process listening on 7574
sudo lsof -nP -i :7574

macOS

sudo lsof -nP -i :7574

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 7574 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 7574
netstat -ano | findstr :7574

From another machine

nmap -p 7574 -sV <host>
sudo nmap -sU -p 7574 <host>
nc -zv <host> 7574

Block it in the firewall

sudo ufw deny 7574/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 7574" -Direction Inbound -LocalPort 7574 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 7574 used for?

Port 7574 is assigned by IANA to coherence (Oracle Coherence Cluster Service), coherence-disc (Oracle Coherence Cluster discovery service).

Is port 7574 TCP or UDP?

Port 7574 is registered for TCP and UDP.

Is it safe to open port 7574?

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 7574 is open?

On Linux run "ss -ltnup 'sport = :7574'", on macOS "lsof -nP -i :7574", and on Windows "netstat -ano | findstr :7574" to see the local process. From another machine, "nmap -p 7574 <host>" shows whether it is reachable.

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