CyberHunter
Local dataset, no network
// Other services

Port 13724: Veritas Network Utility

Port 13724 is assigned by IANA to vnetd (Veritas Network Utility).

13724

How vnetd works

Other services
client:13724vnetdresponse client:13724vnetdresponse

The client sends a request to port 13724 and the vnetd 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 13724 dangerous?

We have no specific security note for port 13724. 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 13724

ServicePortTransportDescriptionReferenceUpdated
vnetd 13724 TCP, UDP Veritas Network Utility - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 13724, and is it reachable?

Linux

sudo ss -ltnup 'sport = :13724'      # process listening on 13724
sudo lsof -nP -i :13724

macOS

sudo lsof -nP -i :13724

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 13724 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 13724
netstat -ano | findstr :13724

From another machine

nmap -p 13724 -sV <host>
sudo nmap -sU -p 13724 <host>
nc -zv <host> 13724

Block it in the firewall

sudo ufw deny 13724/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 13724" -Direction Inbound -LocalPort 13724 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 13724 used for?

Port 13724 is assigned by IANA to vnetd (Veritas Network Utility).

Is port 13724 TCP or UDP?

Port 13724 is registered for TCP and UDP.

Is it safe to open port 13724?

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 13724 is open?

On Linux run "ss -ltnup 'sport = :13724'", on macOS "lsof -nP -i :13724", and on Windows "netstat -ano | findstr :13724" to see the local process. From another machine, "nmap -p 13724 <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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