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// Other services

Port 8066: Toad BI Application Server

Port 8066 is assigned by IANA to toad-bi-appsrvr (Toad BI Application Server).

8066

How toad-bi-appsrvr works

Other services
client:8066toad-bi-appsrvrresponse client:8066toad-bi-appsrvrresponse

The client sends a request to port 8066 and the toad-bi-appsrvr service answers.

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
Other services
01 Security

Is port 8066 dangerous?

We have no specific security note for port 8066. 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 8066

ServicePortTransportDescriptionReferenceUpdated
toad-bi-appsrvr 8066 TCP Toad BI Application Server - 2013-04-19
-8066-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 8066, and is it reachable?

Linux

sudo ss -ltnup 'sport = :8066'      # process listening on 8066
sudo lsof -nP -i :8066

macOS

sudo lsof -nP -i :8066

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 8066 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 8066
netstat -ano | findstr :8066

From another machine

nmap -p 8066 -sV <host>
nc -zv <host> 8066

Block it in the firewall

sudo ufw deny 8066/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 8066" -Direction Inbound -LocalPort 8066 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 8066 used for?

Port 8066 is assigned by IANA to toad-bi-appsrvr (Toad BI Application Server).

Is port 8066 TCP or UDP?

Port 8066 is registered for TCP.

Is it safe to open port 8066?

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 8066 is open?

On Linux run "ss -ltnup 'sport = :8066'", on macOS "lsof -nP -i :8066", and on Windows "netstat -ano | findstr :8066" to see the local process. From another machine, "nmap -p 8066 <host>" shows whether it is reachable.

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