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 Risk

TCP/UDP — System & Infrastructure

Port Genel Bakış

Port Numarası 74

Servis Adı NETRJS-4

Taşıma Protokolü TCP/UDP

Kategori System & Infrastructure

Güvenlik Riski Low

Port Aralığı İyi Bilinen (0-1023)

Port Nedir 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

Güvenlik Değerlendirmeleri

74 numaralı port (NETRJS-4) düşük risk olarak sınıflandırılmıştır. Bu hizmet şifreleme kullanmakta veya minimal bir saldırı yüzeyine sahip olup açılması görece güvenlidir.

Öneri: Standart güvenlik uygulamaları geçerlidir. Yazılımı güncel tutun ve erişimi izleyin.

İlgili Portlar — System & Infrastructure

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

İlgili Terimler

Bandwidth Latency Packet Loss Ping Throughput ASN