Is port 71 (NETRJS-1) dangerous?

Port 71 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 71 be open on my firewall?

Port 71 is generally safe to have open. Apply standard security practices: keep software updated and monitor access logs.

What transport protocol does port 71 use?

Port 71 (NETRJS-1) uses the TCP/UDP transport protocol and falls under the System & Infrastructure category.

:71 (TCP/UDP)

NETRJS-1

Low Risk

TCP/UDP — System & Infrastructure

Port Genel Bakış

Port Numarası 71

Servis Adı NETRJS-1

Taşıma Protokolü TCP/UDP

Kategori System & Infrastructure

Güvenlik Riski Low

Port Aralığı İyi Bilinen (0-1023)

Port Nedir 71?

NETRJS-1 through NETRJS-4 (ports 71-74) were assigned for the Remote Job Entry service used on the original ARPANET to submit batch jobs to remote mainframe computers. Defined in RFC 740, NETRJS allowed time-sharing users to submit card-image job streams to a remote server.

TCP/UDP System & Infrastructure

Güvenlik Değerlendirmeleri

71 numaralı port (NETRJS-1) 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