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// Other services

Port 3867: Sun SDViz DZOGLSERVER Port

Port 3867 is assigned by IANA to dzoglserver (Sun SDViz DZOGLSERVER Port).

3867

How dzoglserver works

Other services
client:3867dzoglserverresponse client:3867dzoglserverresponse

The client sends a request to port 3867 and the dzoglserver 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 3867 dangerous?

We have no specific security note for port 3867. 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 3867

ServicePortTransportDescriptionReferenceUpdated
dzoglserver 3867 TCP, UDP Sun SDViz DZOGLSERVER Port - 2003-08

// source: IANA service name and port number registry

03 Check it

Which program uses port 3867, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3867'      # process listening on 3867
sudo lsof -nP -i :3867

macOS

sudo lsof -nP -i :3867

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3867 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3867
netstat -ano | findstr :3867

From another machine

nmap -p 3867 -sV <host>
sudo nmap -sU -p 3867 <host>
nc -zv <host> 3867

Block it in the firewall

sudo ufw deny 3867/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3867" -Direction Inbound -LocalPort 3867 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3867 used for?

Port 3867 is assigned by IANA to dzoglserver (Sun SDViz DZOGLSERVER Port).

Is port 3867 TCP or UDP?

Port 3867 is registered for TCP and UDP.

Is it safe to open port 3867?

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 3867 is open?

On Linux run "ss -ltnup 'sport = :3867'", on macOS "lsof -nP -i :3867", and on Windows "netstat -ano | findstr :3867" to see the local process. From another machine, "nmap -p 3867 <host>" shows whether it is reachable.

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