Why This Common Ports PDF Matters
Whether you're studying for a certification, troubleshooting firewall rules, or configuring a network device, having the most common ports and protocols at a glance can save you time and frustration. This printable sheet was designed for clarity, speed, and ease of reference—no fluff, just the essentials.
What’s Inside:
Essential TCP/UDP ports
Common services (HTTP, SSH, DNS, FTP, etc.)
Organized by port number and protocol
Great for students, IT pros, and network engineers
Printer-friendly, minimalist format
