CyberHunter
Local dataset, no network
// Other services

Port 5411: ActNet

Port 5411 is assigned by IANA to actnet (ActNet).

5411

How actnet works

Other services
client:5411actnetresponse client:5411actnetresponse

The client sends a request to port 5411 and the actnet 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 5411 dangerous?

We have no specific security note for port 5411. 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 5411

ServicePortTransportDescriptionReferenceUpdated
actnet 5411 TCP, UDP ActNet - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 5411, and is it reachable?

Linux

sudo ss -ltnup 'sport = :5411'      # process listening on 5411
sudo lsof -nP -i :5411

macOS

sudo lsof -nP -i :5411

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 5411 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 5411
netstat -ano | findstr :5411

From another machine

nmap -p 5411 -sV <host>
sudo nmap -sU -p 5411 <host>
nc -zv <host> 5411

Block it in the firewall

sudo ufw deny 5411/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 5411" -Direction Inbound -LocalPort 5411 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 5411 used for?

Port 5411 is assigned by IANA to actnet (ActNet).

Is port 5411 TCP or UDP?

Port 5411 is registered for TCP and UDP.

Is it safe to open port 5411?

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 5411 is open?

On Linux run "ss -ltnup 'sport = :5411'", on macOS "lsof -nP -i :5411", and on Windows "netstat -ano | findstr :5411" to see the local process. From another machine, "nmap -p 5411 <host>" shows whether it is reachable.

05 Related
:4444 Metasploit default / krb524 tcp · udp · high risk :31337 Back Orifice / elite tcp · udp · high risk :1 TCP Port Service Multiplexer tcp · udp :5 Remote Job Entry tcp · udp :9 Discard tcp · udp · sctp · dccp :11 Active Users tcp · udp :17 Quote of the Day tcp · udp :18 Message Send Protocol (historic) tcp · udp

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