CyberHunter
Local dataset, no network
// Other services

Port 315: DPSI

Port 315 is assigned by IANA to dpsi (DPSI).

315

How dpsi works

Other services
client:315dpsiresponse client:315dpsiresponse

The client sends a request to port 315 and the dpsi 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 315 dangerous?

We have no specific security note for port 315. 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 315

ServicePortTransportDescriptionReferenceUpdated
dpsi 315 TCP, UDP DPSI - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 315, and is it reachable?

Linux

sudo ss -ltnup 'sport = :315'      # process listening on 315
sudo lsof -nP -i :315

macOS

sudo lsof -nP -i :315

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 315 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 315
netstat -ano | findstr :315

From another machine

nmap -p 315 -sV <host>
sudo nmap -sU -p 315 <host>
nc -zv <host> 315

Block it in the firewall

sudo ufw deny 315/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 315" -Direction Inbound -LocalPort 315 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 315 used for?

Port 315 is assigned by IANA to dpsi (DPSI).

Is port 315 TCP or UDP?

Port 315 is registered for TCP and UDP.

Is it safe to open port 315?

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 315 is open?

On Linux run "ss -ltnup 'sport = :315'", on macOS "lsof -nP -i :315", and on Windows "netstat -ano | findstr :315" to see the local process. From another machine, "nmap -p 315 <host>" shows whether it is reachable.

05 Related
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