Is port 74 (NETRJS-4) dangerous?

Port 74 is classified as low risk. This service uses encryption or has a minimal attack surface, making it relatively safe to expose with standard security practices.

Should port 74 be open on my firewall?

Port 74 is generally safe to have open. Apply standard security practices: keep software updated and monitor access logs.

What transport protocol does port 74 use?

Port 74 (NETRJS-4) uses the TCP/UDP transport protocol and falls under the System & Infrastructure category.

:74 (TCP/UDP)

NETRJS-4

Low Riesgo

TCP/UDP — System & Infrastructure

Resumen del puerto

Número de puerto 74

Nombre del servicio NETRJS-4

Protocolo de transporte TCP/UDP

Categoría System & Infrastructure

Riesgo de seguridad Low

Rango de puertos Conocidos (0-1023)

Qué es el puerto 74?

NETRJS-4 is the fourth and final port in the ARPANET Network Remote Job Entry suite. All four NETRJS ports (71-74) were defined in RFC 740 for ARPANET-era mainframe access. This port is completely unused in any modern system.

TCP/UDP System & Infrastructure

Consideraciones de seguridad

El puerto 74 (NETRJS-4) está clasificado como bajo riesgo. Este servicio usa cifrado o tiene una superficie de ataque mínima, siendo relativamente seguro de exponer.

Recomendación: Aplica prácticas de seguridad estándar. Mantén el software actualizado y monitorea el acceso.

Puertos relacionados — System & Infrastructure

0 Reserved 1 TCPMUX 2 Management Utility 3 CompressNET 4 Unassigned 5 RJE 6 Unassigned 7 Echo

Términos relacionados

Bandwidth Latency Packet Loss Ping Throughput ASN