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// Other services

Port 8051: Rocrail Client Service

Port 8051 is assigned by IANA to rocrail (Rocrail Client Service).

8051

How rocrail works

Other services
client:8051rocrailresponse client:8051rocrailresponse

The client sends a request to port 8051 and the rocrail 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 8051 dangerous?

We have no specific security note for port 8051. 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 8051

ServicePortTransportDescriptionReferenceUpdated
rocrail 8051 TCP Rocrail Client Service - 2011-05-23
-8051-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 8051, and is it reachable?

Linux

sudo ss -ltnup 'sport = :8051'      # process listening on 8051
sudo lsof -nP -i :8051

macOS

sudo lsof -nP -i :8051

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 8051 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 8051
netstat -ano | findstr :8051

From another machine

nmap -p 8051 -sV <host>
nc -zv <host> 8051

Block it in the firewall

sudo ufw deny 8051/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 8051" -Direction Inbound -LocalPort 8051 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 8051 used for?

Port 8051 is assigned by IANA to rocrail (Rocrail Client Service).

Is port 8051 TCP or UDP?

Port 8051 is registered for TCP.

Is it safe to open port 8051?

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 8051 is open?

On Linux run "ss -ltnup 'sport = :8051'", on macOS "lsof -nP -i :8051", and on Windows "netstat -ano | findstr :8051" to see the local process. From another machine, "nmap -p 8051 <host>" shows whether it is reachable.

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