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// Other services

Port 3714: DELOS Direct Messaging

Port 3714 is assigned by IANA to delos-dms (DELOS Direct Messaging).

3714

How delos-dms works

Other services
client:3714delos-dmsresponse client:3714delos-dmsresponse

The client sends a request to port 3714 and the delos-dms 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 3714 dangerous?

We have no specific security note for port 3714. 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 3714

ServicePortTransportDescriptionReferenceUpdated
delos-dms 3714 TCP, UDP DELOS Direct Messaging - 2003-03

// source: IANA service name and port number registry

03 Check it

Which program uses port 3714, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3714'      # process listening on 3714
sudo lsof -nP -i :3714

macOS

sudo lsof -nP -i :3714

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3714 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3714
netstat -ano | findstr :3714

From another machine

nmap -p 3714 -sV <host>
sudo nmap -sU -p 3714 <host>
nc -zv <host> 3714

Block it in the firewall

sudo ufw deny 3714/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3714" -Direction Inbound -LocalPort 3714 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3714 used for?

Port 3714 is assigned by IANA to delos-dms (DELOS Direct Messaging).

Is port 3714 TCP or UDP?

Port 3714 is registered for TCP and UDP.

Is it safe to open port 3714?

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 3714 is open?

On Linux run "ss -ltnup 'sport = :3714'", on macOS "lsof -nP -i :3714", and on Windows "netstat -ano | findstr :3714" to see the local process. From another machine, "nmap -p 3714 <host>" shows whether it is reachable.

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