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// Monitoring & logging

Port 412: Trap Convention Port

Port 412 is assigned by IANA to synoptics-trap (Trap Convention Port).

412

How synoptics-trap works

Monitoring & logging
monitoringdevicesynoptics-trap monitoringdevicesynoptics-trap

The monitoring server collects metrics, alerts or logs from devices over port 412.

Transport
TCP · UDP
Exposure risk
not rated depends on the program listening
Encryption
Unknownnot stated by the registry
IANA status
Assigned1 registered service
Range
Well-known (0-1023)
Category
Monitoring & logging
01 Security

Is port 412 dangerous?

We have no specific security note for port 412. 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 412

ServicePortTransportDescriptionReferenceUpdated
synoptics-trap 412 TCP, UDP Trap Convention Port - -

// source: IANA service name and port number registry

03 Check it

Which program uses port 412, and is it reachable?

Linux

sudo ss -ltnup 'sport = :412'      # process listening on 412
sudo lsof -nP -i :412

macOS

sudo lsof -nP -i :412

Windows (PowerShell)

Get-NetTCPConnection -LocalPort 412 -State Listen | Select LocalAddress, OwningProcess
Get-NetUDPEndpoint -LocalPort 412
netstat -ano | findstr :412

From another machine

nmap -p 412 -sV <host>
sudo nmap -sU -p 412 <host>
nc -zv <host> 412

Block it in the firewall

sudo ufw deny 412/tcp                                         # Linux (ufw)
New-NetFirewallRule -DisplayName "Block 412" -Direction Inbound -LocalPort 412 -Protocol TCP -Action Block  # Windows
04 FAQ
What is port 412 used for?

Port 412 is assigned by IANA to synoptics-trap (Trap Convention Port).

Is port 412 TCP or UDP?

Port 412 is registered for TCP and UDP.

Is it safe to open port 412?

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 412 is open?

On Linux run "ss -ltnup 'sport = :412'", on macOS "lsof -nP -i :412", and on Windows "netstat -ano | findstr :412" to see the local process. From another machine, "nmap -p 412 <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 :561 tcp · udp

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