CyberHunter
Local dataset, no network
// Other services

Port 154: NETSC

Port 154 is assigned by IANA to netsc-prod (NETSC).

154

How netsc-prod works

Other services
client:154netsc-prodresponse client:154netsc-prodresponse

The client sends a request to port 154 and the netsc-prod 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
Well-known (0-1023)
Category
Other services
01 Security

Is port 154 dangerous?

We have no specific security note for port 154. 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 154

ServicePortTransportDescriptionReferenceUpdated
netsc-prod 154 TCP, UDP NETSC - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 154, and is it reachable?

Linux

sudo ss -ltnup 'sport = :154'      # process listening on 154
sudo lsof -nP -i :154

macOS

sudo lsof -nP -i :154

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 154 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 154
netstat -ano | findstr :154

From another machine

nmap -p 154 -sV <host>
sudo nmap -sU -p 154 <host>
nc -zv <host> 154

Block it in the firewall

sudo ufw deny 154/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 154" -Direction Inbound -LocalPort 154 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 154 used for?

Port 154 is assigned by IANA to netsc-prod (NETSC).

Is port 154 TCP or UDP?

Port 154 is registered for TCP and UDP.

Is it safe to open port 154?

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 154 is open?

On Linux run "ss -ltnup 'sport = :154'", on macOS "lsof -nP -i :154", and on Windows "netstat -ano | findstr :154" to see the local process. From another machine, "nmap -p 154 <host>" shows whether it is reachable.

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