Port Checker • 1 min read

Ultimate Guide to Open Port Scanners and Network Auditing

Discover how to effectively use an open port checker and port scanner to identify vulnerabilities and secure your server infrastructure.

Ultimate Guide to Open Port Scanners and Network Auditing
Network cables

Why Port Checking Matters

An open port checker (or port tester) is a fundamental tool for network administrators. Leaving unnecessary ports open can expose services to unauthorized access. Regular audits using a port scanner ensure that only intended services are publicly accessible.

Common Ports to Monitor

  • Port 22 (SSH)
  • Port 80 (HTTP)
  • Port 443 (HTTPS)
  • Port 3306 (MySQL)

Written by Can Kaya

Specialist in cybersecurity and ad-tech. Building high-availability edge networks that protect marketers from bot traffic and fraud while maintaining blazing-fast performance.

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