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// Other services

Port 8892: Desktop Data TCP 4: FARM product

Port 8892 is assigned by IANA to ddi-tcp-5 (Desktop Data TCP 4: FARM product), ddi-udp-5 (Desktop Data UDP 4: FARM product).

8892

How ddi-tcp-5 works

Other services
client:8892ddi-tcp-5response client:8892ddi-tcp-5response

The client sends a request to port 8892 and the ddi-tcp-5 service answers.

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
Other services
01 Security

Is port 8892 dangerous?

We have no specific security note for port 8892. Its risk depends on the program actually listening on it. General advice for other services services:

  • Close the port if nothing on the host needs it.
  • Identify the process that listens on it (commands below) before opening it in a firewall.
  • Expose a service only to the networks that use it.
02 Registry

IANA registry entries for port 8892

ServicePortTransportDescriptionReferenceUpdated
ddi-tcp-5 8892 TCP Desktop Data TCP 4: FARM product - -
ddi-udp-5 8892 UDP Desktop Data UDP 4: FARM product - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 8892, and is it reachable?

Linux

sudo ss -ltnup 'sport = :8892'      # process listening on 8892
sudo lsof -nP -i :8892

macOS

sudo lsof -nP -i :8892

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 8892 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 8892
netstat -ano | findstr :8892

From another machine

nmap -p 8892 -sV <host>
sudo nmap -sU -p 8892 <host>
nc -zv <host> 8892

Block it in the firewall

sudo ufw deny 8892/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 8892" -Direction Inbound -LocalPort 8892 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 8892 used for?

Port 8892 is assigned by IANA to ddi-tcp-5 (Desktop Data TCP 4: FARM product), ddi-udp-5 (Desktop Data UDP 4: FARM product).

Is port 8892 TCP or UDP?

Port 8892 is registered for TCP and UDP.

Is it safe to open port 8892?

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. Close the port if nothing on the host needs it.

How do I check if port 8892 is open?

On Linux run "ss -ltnup 'sport = :8892'", on macOS "lsof -nP -i :8892", and on Windows "netstat -ano | findstr :8892" to see the local process. From another machine, "nmap -p 8892 <host>" shows whether it is reachable.

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