CyberHunter
Local dataset, no network
// Other services

Port 780:

Port 780 is assigned by IANA to wpgs ().

780

How wpgs works

Other services
client:780wpgsresponse client:780wpgsresponse

The client sends a request to port 780 and the wpgs 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 780 dangerous?

We have no specific security note for port 780. 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 780

ServicePortTransportDescriptionReferenceUpdated
wpgs 780 TCP, UDP - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 780, and is it reachable?

Linux

sudo ss -ltnup 'sport = :780'      # process listening on 780
sudo lsof -nP -i :780

macOS

sudo lsof -nP -i :780

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 780 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 780
netstat -ano | findstr :780

From another machine

nmap -p 780 -sV <host>
sudo nmap -sU -p 780 <host>
nc -zv <host> 780

Block it in the firewall

sudo ufw deny 780/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 780" -Direction Inbound -LocalPort 780 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 780 used for?

Port 780 is assigned by IANA to wpgs ().

Is port 780 TCP or UDP?

Port 780 is registered for TCP and UDP.

Is it safe to open port 780?

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 780 is open?

On Linux run "ss -ltnup 'sport = :780'", on macOS "lsof -nP -i :780", and on Windows "netstat -ano | findstr :780" to see the local process. From another machine, "nmap -p 780 <host>" shows whether it is reachable.

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