CyberHunter
Local dataset, no network
// Other services

Port 6778: netTsunami p2p storage system

Port 6778 is assigned by IANA to ntz-p2p-storage (netTsunami p2p storage system).

6778

How ntz-p2p-storage works

Other services
client:6778ntz-p2p-storageresponse client:6778ntz-p2p-storageresponse

The client sends a request to port 6778 and the ntz-p2p-storage 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 6778 dangerous?

We have no specific security note for port 6778. 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 6778

ServicePortTransportDescriptionReferenceUpdated
ntz-p2p-storage 6778 TCP netTsunami p2p storage system - 2013-05-01
-6778-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 6778, and is it reachable?

Linux

sudo ss -ltnup 'sport = :6778'      # process listening on 6778
sudo lsof -nP -i :6778

macOS

sudo lsof -nP -i :6778

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 6778 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 6778
netstat -ano | findstr :6778

From another machine

nmap -p 6778 -sV <host>
nc -zv <host> 6778

Block it in the firewall

sudo ufw deny 6778/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 6778" -Direction Inbound -LocalPort 6778 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 6778 used for?

Port 6778 is assigned by IANA to ntz-p2p-storage (netTsunami p2p storage system).

Is port 6778 TCP or UDP?

Port 6778 is registered for TCP.

Is it safe to open port 6778?

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 6778 is open?

On Linux run "ss -ltnup 'sport = :6778'", on macOS "lsof -nP -i :6778", and on Windows "netstat -ano | findstr :6778" to see the local process. From another machine, "nmap -p 6778 <host>" shows whether it is reachable.

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