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// Other services

Port 4660: smaclmgr

Port 4660 is assigned by IANA to smaclmgr (smaclmgr).

4660

How smaclmgr works

Other services
client:4660smaclmgrresponse client:4660smaclmgrresponse

The client sends a request to port 4660 and the smaclmgr 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 4660 dangerous?

We have no specific security note for port 4660. 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 4660

ServicePortTransportDescriptionReferenceUpdated
smaclmgr 4660 TCP, UDP smaclmgr - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 4660, and is it reachable?

Linux

sudo ss -ltnup 'sport = :4660'      # process listening on 4660
sudo lsof -nP -i :4660

macOS

sudo lsof -nP -i :4660

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 4660 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 4660
netstat -ano | findstr :4660

From another machine

nmap -p 4660 -sV <host>
sudo nmap -sU -p 4660 <host>
nc -zv <host> 4660

Block it in the firewall

sudo ufw deny 4660/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 4660" -Direction Inbound -LocalPort 4660 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 4660 used for?

Port 4660 is assigned by IANA to smaclmgr (smaclmgr).

Is port 4660 TCP or UDP?

Port 4660 is registered for TCP and UDP.

Is it safe to open port 4660?

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 4660 is open?

On Linux run "ss -ltnup 'sport = :4660'", on macOS "lsof -nP -i :4660", and on Windows "netstat -ano | findstr :4660" to see the local process. From another machine, "nmap -p 4660 <host>" shows whether it is reachable.

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