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// Other services

Port 3071: Crossplatform replication protocol

Port 3071 is assigned by IANA to xplat-replicate (Crossplatform replication protocol).

3071

How xplat-replicate works

Other services
client:3071xplat-replicateresponse client:3071xplat-replicateresponse

The client sends a request to port 3071 and the xplat-replicate 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 3071 dangerous?

We have no specific security note for port 3071. 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 3071

ServicePortTransportDescriptionReferenceUpdated
xplat-replicate 3071 TCP Crossplatform replication protocol - 2017-08-24
-3071-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 3071, and is it reachable?

Linux

sudo ss -ltnup 'sport = :3071'      # process listening on 3071
sudo lsof -nP -i :3071

macOS

sudo lsof -nP -i :3071

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 3071 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 3071
netstat -ano | findstr :3071

From another machine

nmap -p 3071 -sV <host>
nc -zv <host> 3071

Block it in the firewall

sudo ufw deny 3071/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 3071" -Direction Inbound -LocalPort 3071 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 3071 used for?

Port 3071 is assigned by IANA to xplat-replicate (Crossplatform replication protocol).

Is port 3071 TCP or UDP?

Port 3071 is registered for TCP.

Is it safe to open port 3071?

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 3071 is open?

On Linux run "ss -ltnup 'sport = :3071'", on macOS "lsof -nP -i :3071", and on Windows "netstat -ano | findstr :3071" to see the local process. From another machine, "nmap -p 3071 <host>" shows whether it is reachable.

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