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// Other services

Port 5254: LogCabin storage service

Port 5254 is assigned by IANA to logcabin (LogCabin storage service).

5254

How logcabin works

Other services
client:5254logcabinresponse client:5254logcabinresponse

The client sends a request to port 5254 and the logcabin 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 5254 dangerous?

We have no specific security note for port 5254. 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 5254

ServicePortTransportDescriptionReferenceUpdated
logcabin 5254 TCP LogCabin storage service - 2015-04-14
-5254-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 5254, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5254'      # process listening on 5254
sudo lsof -nP -i :5254

macOS

sudo lsof -nP -i :5254

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5254 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5254
netstat -ano | findstr :5254

From another machine

nmap -p 5254 -sV <host>
nc -zv <host> 5254

Block it in the firewall

sudo ufw deny 5254/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5254" -Direction Inbound -LocalPort 5254 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 5254 used for?

Port 5254 is assigned by IANA to logcabin (LogCabin storage service).

Is port 5254 TCP or UDP?

Port 5254 is registered for TCP.

Is it safe to open port 5254?

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 5254 is open?

On Linux run "ss -ltnup 'sport = :5254'", on macOS "lsof -nP -i :5254", and on Windows "netstat -ano | findstr :5254" to see the local process. From another machine, "nmap -p 5254 <host>" shows whether it is reachable.

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