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// Databases & caches

Port 8102: Oracle Kernel zones migration server

Port 8102 is assigned by IANA to kz-migr (Oracle Kernel zones migration server).

8102

How kz-migr works

Databases & caches
app:8102kz-migr app:8102kz-migr

The application sends a SQL query to the kz-migr server on port 8102, which returns rows from its tables.

Transport
TCP
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 8102 dangerous?

We have no specific security note for port 8102. 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 8102

ServicePortTransportDescriptionReferenceUpdated
kz-migr 8102 TCP Oracle Kernel zones migration server - 2013-12-24
-8102-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 8102, and is it reachable?

Linux

sudo ss -ltnup 'sport = :8102'      # process listening on 8102
sudo lsof -nP -i :8102

macOS

sudo lsof -nP -i :8102

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 8102 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 8102
netstat -ano | findstr :8102

From another machine

nmap -p 8102 -sV <host>
nc -zv <host> 8102

Block it in the firewall

sudo ufw deny 8102/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 8102" -Direction Inbound -LocalPort 8102 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 8102 used for?

Port 8102 is assigned by IANA to kz-migr (Oracle Kernel zones migration server).

Is port 8102 TCP or UDP?

Port 8102 is registered for TCP.

Is it safe to open port 8102?

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 8102 is open?

On Linux run "ss -ltnup 'sport = :8102'", on macOS "lsof -nP -i :8102", and on Windows "netstat -ano | findstr :8102" to see the local process. From another machine, "nmap -p 8102 <host>" shows whether it is reachable.

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