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// Other services

Port 1867: UDRIVE

Port 1867 is assigned by IANA to udrive (UDRIVE).

1867

How udrive works

Other services
client:1867udriveresponse client:1867udriveresponse

The client sends a request to port 1867 and the udrive 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 1867 dangerous?

We have no specific security note for port 1867. 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 1867

ServicePortTransportDescriptionReferenceUpdated
udrive 1867 TCP, UDP UDRIVE - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 1867, and is it reachable?

Linux

sudo ss -ltnup 'sport = :1867'      # process listening on 1867
sudo lsof -nP -i :1867

macOS

sudo lsof -nP -i :1867

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 1867 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 1867
netstat -ano | findstr :1867

From another machine

nmap -p 1867 -sV <host>
sudo nmap -sU -p 1867 <host>
nc -zv <host> 1867

Block it in the firewall

sudo ufw deny 1867/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 1867" -Direction Inbound -LocalPort 1867 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 1867 used for?

Port 1867 is assigned by IANA to udrive (UDRIVE).

Is port 1867 TCP or UDP?

Port 1867 is registered for TCP and UDP.

Is it safe to open port 1867?

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 1867 is open?

On Linux run "ss -ltnup 'sport = :1867'", on macOS "lsof -nP -i :1867", and on Windows "netstat -ano | findstr :1867" to see the local process. From another machine, "nmap -p 1867 <host>" shows whether it is reachable.

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