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// Other services

Port 3793: DataCore Software

Port 3793 is assigned by IANA to dcsoftware (DataCore Software).

3793

How dcsoftware works

Other services
client:3793dcsoftwareresponse client:3793dcsoftwareresponse

The client sends a request to port 3793 and the dcsoftware 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
Registered (1024-49151)
Category
Other services
01 Security

Is port 3793 dangerous?

We have no specific security note for port 3793. 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 3793

ServicePortTransportDescriptionReferenceUpdated
dcsoftware 3793 TCP, UDP DataCore Software - 2003-07

// source: IANA service name and port number registry

03 Check it

Which program uses port 3793, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3793'      # process listening on 3793
sudo lsof -nP -i :3793

macOS

sudo lsof -nP -i :3793

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3793 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3793
netstat -ano | findstr :3793

From another machine

nmap -p 3793 -sV <host>
sudo nmap -sU -p 3793 <host>
nc -zv <host> 3793

Block it in the firewall

sudo ufw deny 3793/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3793" -Direction Inbound -LocalPort 3793 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3793 used for?

Port 3793 is assigned by IANA to dcsoftware (DataCore Software).

Is port 3793 TCP or UDP?

Port 3793 is registered for TCP and UDP.

Is it safe to open port 3793?

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 3793 is open?

On Linux run "ss -ltnup 'sport = :3793'", on macOS "lsof -nP -i :3793", and on Windows "netstat -ano | findstr :3793" to see the local process. From another machine, "nmap -p 3793 <host>" shows whether it is reachable.

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