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// Other services

Port 4408: SLS Technology Control Centre

Port 4408 is assigned by IANA to slscc (SLS Technology Control Centre).

4408

How slscc works

Other services
client:4408slsccresponse client:4408slsccresponse

The client sends a request to port 4408 and the slscc 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 4408 dangerous?

We have no specific security note for port 4408. 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 4408

ServicePortTransportDescriptionReferenceUpdated
slscc 4408 TCP SLS Technology Control Centre - 2008-01-28
-4408-Reserved--

// source: IANA service name and port number registry

03 Check it

Which program uses port 4408, and is it reachable?

Linux

sudo ss -ltnup 'sport = :4408'      # process listening on 4408
sudo lsof -nP -i :4408

macOS

sudo lsof -nP -i :4408

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 4408 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 4408
netstat -ano | findstr :4408

From another machine

nmap -p 4408 -sV <host>
nc -zv <host> 4408

Block it in the firewall

sudo ufw deny 4408/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 4408" -Direction Inbound -LocalPort 4408 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 4408 used for?

Port 4408 is assigned by IANA to slscc (SLS Technology Control Centre).

Is port 4408 TCP or UDP?

Port 4408 is registered for TCP.

Is it safe to open port 4408?

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 4408 is open?

On Linux run "ss -ltnup 'sport = :4408'", on macOS "lsof -nP -i :4408", and on Windows "netstat -ano | findstr :4408" to see the local process. From another machine, "nmap -p 4408 <host>" shows whether it is reachable.

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