Is port 72 (NETRJS-2) dangerous?

Port 72 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 72 be open on my firewall?

Port 72 is generally safe to have open. Apply standard security practices: keep software updated and monitor access logs.

What transport protocol does port 72 use?

Port 72 (NETRJS-2) uses the TCP/UDP transport protocol and falls under the System & Infrastructure category.

:72 (TCP/UDP)

NETRJS-2

Low Risque

TCP/UDP — System & Infrastructure

Aperçu du port

Numéro de port 72

Nom du service NETRJS-2

Protocole de transport TCP/UDP

Catégorie System & Infrastructure

Risque de sécurité Low

Plage de ports Bien connu (0-1023)

Qu'est-ce que le port 72?

NETRJS-2 is the second of four ports (71-74) assigned to the ARPANET Remote Job Entry service for submitting batch workloads to remote mainframes. Defined in RFC 740 and used in the early ARPANET environment of the 1970s. It is completely obsolete.

TCP/UDP System & Infrastructure

Considérations de sécurité

Le port 72 (NETRJS-2) est classifié comme risque faible. Ce service utilise le chiffrement ou présente une surface d'attaque minimale, le rendant relativement sûr à exposer.

Recommandation : Les pratiques de sécurité standard s'appliquent. Maintenez les logiciels à jour et surveillez les accès.

Ports associés — System & Infrastructure

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

Termes associés

Bandwidth Latency Packet Loss Ping Throughput ASN