Is port 423 (OPC-JobStart) dangerous?

Port 423 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 423 be open on my firewall?

Port 423 is generally safe to have open. Apply standard security practices: keep software updated and monitor access logs.

What transport protocol does port 423 use?

Port 423 (OPC-JobStart) uses the TCP/UDP transport protocol and falls under the System & Infrastructure category.

:423 (TCP/UDP)

OPC-JobStart

Low Risiko

TCP/UDP — System & Infrastructure

Ikhtisar Port

Nomor Port 423

Nama Layanan OPC-JobStart

Protokol Transport TCP/UDP

Kategori System & Infrastructure

Risiko Keamanan Low

Rentang Port Well-Known (0-1023)

Apa itu Port 423?

IBM Operations Planning and Control Job Start. Used by IBM mainframe job scheduling for initiating batch jobs.

TCP/UDP System & Infrastructure

Pertimbangan Keamanan

Port 423 (OPC-JobStart) diklasifikasikan sebagai risiko rendah. Layanan ini menggunakan enkripsi atau memiliki permukaan serangan yang minimal, sehingga relatif aman untuk diekspos.

Rekomendasi: Terapkan praktik keamanan standar. Jaga perangkat lunak tetap diperbarui dan pantau akses.

Port Terkait — System & Infrastructure

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

Istilah Terkait

Bandwidth Latency Packet Loss Ping Throughput ASN