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// Other services

Port 4153: MBL Remote Battery Monitoring

Port 4153 is assigned by IANA to mbl-battd (MBL Remote Battery Monitoring).

4153

How mbl-battd works

Other services
client:4153mbl-battdresponse client:4153mbl-battdresponse

The client sends a request to port 4153 and the mbl-battd 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 4153 dangerous?

We have no specific security note for port 4153. 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 4153

ServicePortTransportDescriptionReferenceUpdated
mbl-battd 4153 TCP, UDP MBL Remote Battery Monitoring - 2007-05

// source: IANA service name and port number registry

03 Check it

Which program uses port 4153, and is it reachable?

Linux

sudo ss -ltnup 'sport = :4153'      # process listening on 4153
sudo lsof -nP -i :4153

macOS

sudo lsof -nP -i :4153

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 4153 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 4153
netstat -ano | findstr :4153

From another machine

nmap -p 4153 -sV <host>
sudo nmap -sU -p 4153 <host>
nc -zv <host> 4153

Block it in the firewall

sudo ufw deny 4153/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 4153" -Direction Inbound -LocalPort 4153 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 4153 used for?

Port 4153 is assigned by IANA to mbl-battd (MBL Remote Battery Monitoring).

Is port 4153 TCP or UDP?

Port 4153 is registered for TCP and UDP.

Is it safe to open port 4153?

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 4153 is open?

On Linux run "ss -ltnup 'sport = :4153'", on macOS "lsof -nP -i :4153", and on Windows "netstat -ano | findstr :4153" to see the local process. From another machine, "nmap -p 4153 <host>" shows whether it is reachable.

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