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// Databases & caches

Port 5102: Oracle OMS non-secure

Port 5102 is assigned by IANA to oms-nonsecure (Oracle OMS non-secure).

5102

How oms-nonsecure works

Databases & caches
app:5102oms-nonsecure app:5102oms-nonsecure

The application sends a SQL query to the oms-nonsecure server on port 5102, 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 5102 dangerous?

We have no specific security note for port 5102. 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 5102

ServicePortTransportDescriptionReferenceUpdated
oms-nonsecure 5102 TCP, UDP Oracle OMS non-secure - 2005-08

// source: IANA service name and port number registry

03 Check it

Which program uses port 5102, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5102'      # process listening on 5102
sudo lsof -nP -i :5102

macOS

sudo lsof -nP -i :5102

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5102 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5102
netstat -ano | findstr :5102

From another machine

nmap -p 5102 -sV <host>
sudo nmap -sU -p 5102 <host>
nc -zv <host> 5102

Block it in the firewall

sudo ufw deny 5102/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5102" -Direction Inbound -LocalPort 5102 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 5102 used for?

Port 5102 is assigned by IANA to oms-nonsecure (Oracle OMS non-secure).

Is port 5102 TCP or UDP?

Port 5102 is registered for TCP and UDP.

Is it safe to open port 5102?

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 5102 is open?

On Linux run "ss -ltnup 'sport = :5102'", on macOS "lsof -nP -i :5102", and on Windows "netstat -ano | findstr :5102" to see the local process. From another machine, "nmap -p 5102 <host>" shows whether it is reachable.

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