Puerto67— DHCPv4 server
Los servidores DHCPv4 usan UDP 67 y los clientes UDP 68. Es un protocolo de arrendamiento de direcciones, no un sitio web que se abra en el navegador.
Registry assignments, software defaults and local listeners are different things. A port number alone does not identify or secure a service.
Configuration and troubleshooting
Compruebe la interfaz del servidor, el conjunto de direcciones y los registros de arrendamiento. Entre subredes, revise el relay DHCP; una prueba de conectividad TCP no valida DHCP.
Important limitations
No inicie un servidor DHCP no planificado en una red de producción. La documentación de Windows DHCP procede de Microsoft, no del proyecto ISC.
Read-only checks: run on the server host
Choose the commands for your OS. Check TCP and UDP separately. No result is not a lasting availability guarantee; inspect host and container separately.
Linux
sudo ss -lunp 'sport = :67'macOS
sudo lsof -nP -iUDP:67Windows PowerShell
Get-NetUDPEndpoint -LocalPort 67Sources and review
Sources checked on:
This review covers the explanations and sources on this page, not your device or every community software entry below.
Software que utiliza este puerto (3 programas)
Community software entries: links are references, not individual verification.
Recomendaciones de uso
- Antes de utilizar el puerto 67, comprueba que no esté ocupado por otros servicios
- Si encuentras conflictos de puertos, considera utilizar otros puertos o detener el servicio que lo ocupa
Preguntas frecuentes
What is port 67 used for?
Port 67 sits in the System category. This page lists the registered purpose and the software commonly associated with it; to see what is actually listening on a specific machine, check the process with ss/netstat.
Is port 67 TCP or UDP?
The registered protocol on this page is UDP. The same number behaves independently on each protocol: TCP may be listening while UDP is idle, so check them separately.
How do I check if port 67 is in use?
On Linux: sudo ss -tlnp 'sport = :67' for an exact port match. On macOS: sudo lsof -nP -iTCP:67 -sTCP:LISTEN. On Windows PowerShell: Get-NetTCPConnection -LocalPort 67 -State Listen. A listener counts as confirmed only when you can see the bind address and process name; without root/admin you will not see other users' processes.
Is port 67 secure? Should I open it in my firewall?
A port number has no inherent security — it depends on whether the listening service is correctly configured and whether it needs exposure at all. Keep loopback/internal-only services firewalled; where public access is required, pair it with source restrictions, VPN or authentication. The caution section on this page lists port-specific risks.
Información rápida
- Puerto
- 67
- Protocolo
- UDP
- Categorías
- Sistema
- Estado de uso
- 3 programas que lo utilizan
Puertos relacionados
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