CyberHunter
Local dataset, no network
// Other services

Port 314: Opalis Robot

Port 314 is assigned by IANA to opalis-robot (Opalis Robot).

314

How opalis-robot works

Other services
client:314opalis-robotresponse client:314opalis-robotresponse

The client sends a request to port 314 and the opalis-robot service answers.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Well-known (0-1023)
Category
Other services
01 Security

Is port 314 dangerous?

We have no specific security note for port 314. 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 314

ServicePortTransportDescriptionReferenceUpdated
opalis-robot 314 TCP, UDP Opalis Robot - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 314, and is it reachable?

Linux

sudo ss -ltnup 'sport = :314'      # process listening on 314
sudo lsof -nP -i :314

macOS

sudo lsof -nP -i :314

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 314 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 314
netstat -ano | findstr :314

From another machine

nmap -p 314 -sV <host>
sudo nmap -sU -p 314 <host>
nc -zv <host> 314

Block it in the firewall

sudo ufw deny 314/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 314" -Direction Inbound -LocalPort 314 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 314 used for?

Port 314 is assigned by IANA to opalis-robot (Opalis Robot).

Is port 314 TCP or UDP?

Port 314 is registered for TCP and UDP.

Is it safe to open port 314?

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 314 is open?

On Linux run "ss -ltnup 'sport = :314'", on macOS "lsof -nP -i :314", and on Windows "netstat -ano | findstr :314" to see the local process. From another machine, "nmap -p 314 <host>" shows whether it is reachable.

05 Related
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