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// Monitoring & logging

Port 31416: XQoS network monitor

Port 31416 is assigned by IANA to xqosd (XQoS network monitor).

31416

How xqosd works

Monitoring & logging
monitoringdevicexqosd monitoringdevicexqosd

The monitoring server collects metrics, alerts or logs from devices over port 31416.

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
Monitoring & logging
01 Security

Is port 31416 dangerous?

We have no specific security note for port 31416. Its risk depends on the program actually listening on it. General advice for monitoring & logging services:

  • Restrict management and monitoring protocols to the monitoring network.
  • Replace community strings and default credentials.
  • Send logs over TLS.
02 Registry

IANA registry entries for port 31416

ServicePortTransportDescriptionReferenceUpdated
xqosd 31416 TCP, UDP XQoS network monitor - 2002-06

// source: IANA service name and port number registry

03 Check it

Which program uses port 31416, and is it reachable?

Linux

sudo ss -ltnup 'sport = :31416'      # process listening on 31416
sudo lsof -nP -i :31416

macOS

sudo lsof -nP -i :31416

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 31416 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 31416
netstat -ano | findstr :31416

From another machine

nmap -p 31416 -sV <host>
sudo nmap -sU -p 31416 <host>
nc -zv <host> 31416

Block it in the firewall

sudo ufw deny 31416/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 31416" -Direction Inbound -LocalPort 31416 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 31416 used for?

Port 31416 is assigned by IANA to xqosd (XQoS network monitor).

Is port 31416 TCP or UDP?

Port 31416 is registered for TCP and UDP.

Is it safe to open port 31416?

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. Restrict management and monitoring protocols to the monitoring network.

How do I check if port 31416 is open?

On Linux run "ss -ltnup 'sport = :31416'", on macOS "lsof -nP -i :31416", and on Windows "netstat -ano | findstr :31416" to see the local process. From another machine, "nmap -p 31416 <host>" shows whether it is reachable.

05 Related
:161 SNMP udp · tcp · high risk :162 SNMP trap udp · tcp · moderate risk :9090 Prometheus / admin consoles tcp · udp · high risk :514 Syslog udp · tcp · moderate risk :6514 Syslog over TLS tcp · udp · dccp · low risk :5601 Kibana tcp · udp · high risk :391 SynOptics SNMP Relay Port tcp · udp :412 Trap Convention Port tcp · udp

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