Is port 73 (NETRJS-3) dangerous?

Port 73 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 73 be open on my firewall?

Port 73 is generally safe to have open. Apply standard security practices: keep software updated and monitor access logs.

What transport protocol does port 73 use?

Port 73 (NETRJS-3) uses the TCP/UDP transport protocol and falls under the System & Infrastructure category.

:73 (TCP/UDP)

NETRJS-3

Low Risk

TCP/UDP — System & Infrastructure

Port Genel Bakış

Port Numarası 73

Servis Adı NETRJS-3

Taşıma Protokolü TCP/UDP

Kategori System & Infrastructure

Güvenlik Riski Low

Port Aralığı İyi Bilinen (0-1023)

Port Nedir 73?

NETRJS-3 is the third variant port for the ARPANET Network Remote Job Service. Defined alongside ports 71, 72, and 74 in RFC 740, these ports represent the earliest form of remote computing over a network.

TCP/UDP System & Infrastructure

Güvenlik Değerlendirmeleri

73 numaralı port (NETRJS-3) 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