$ netstat -tulpn | grep LISTEN

Stop Guessing.
Instantly Fix Network Port Issues.

The ultimate 5-page quick reference for network admins. Get instant access to essential commands, flowcharts, and security best practices.

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Is This You During a Network Outage?

If you're tired of the pressure and the frantic searching, you're in the right place.

🔍

Randomly Pinging & Praying

"The service is down. Is it a firewall? A misconfigured port? I'm just trying anything at this point, hoping something works."

⏰

Losing Time at 2 AM

"The server is down, everyone is waiting, and I'm stuck googling basic port numbers. I know this, but my brain is fried."

📚

Opening a Security Hole

"I'll just open up a few more ports... just in case. I hope I don't accidentally expose our entire infrastructure to the internet."

I Need This Guide!

Here's What You'll Get Inside

A 5-page, to-the-point guide that respects your time.

✓ The Ultimate Ports Cheat Sheet

✓ 5-Minute Troubleshooting Flowchart

✓ Copy/Paste Diagnostic Commands

✓ Firewall & Security Best Practices

✓ Mobile-Friendly PDF for Emergencies

✓ The "Oh Sh*t, What Now?" Checklist

Trusted by Over 1,600+ Admins

"This guide saved me during a critical outage at 2 AM. Had our email servers back online in 10 minutes instead of hours of guessing. Worth its weight in gold."

Mike Chen

Senior Network Engineer

"I keep this on my phone for emergency calls. The troubleshooting flowchart is brilliant - it's like having a senior engineer guiding you through every step."

Lisa Rodriguez

IT Manager

"Finally, a reference that doesn't assume I memorize every port number! Clean, organized, and gets straight to the point. My whole team uses it now."

David Park

Network Administrator

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