Fix ‘This Site Can’t Be Reached’ Error: Proven Solutions for 2025
December 6, 2025

Understanding the ‘This Site Can’t Be Reached’ Error: Common Causes Encountering the “This site can’t be reached” error can be frustrating, especially when you’re trying to access an important website. This issue is often caused by problems with your internet connection, your browser’s settings, or your router. Fortunately, there are simple steps you can take […]

How To Fix Net::Err_Cert_Common_Name_Invalid Error: Quick Fixes & Expert Solutions
December 6, 2025

Understanding the net::err_cert_common_name_invalid Error The net::err_cert_common_name_invalid error is a common issue that occurs when there is a mismatch between the domain name in the SSL/TLS certificate and the domain name of the website being accessed. This error prevents secure connections from being established, causing browser security warnings. Understanding what triggers this error and how to […]

Check Ubuntu Version: The Ultimate Guide for System Maintenance
December 6, 2025

Why Checking Your Ubuntu Version is Essential for System Maintenance Regularly checking your Ubuntu version is a fundamental practice for keeping your system secure and efficient. Whether you’re troubleshooting, installing software, or applying updates, knowing the exact version of Ubuntu you’re running helps ensure compatibility and stability. This practice is vital for maintaining the health […]

Alireza Pourmahdavi

I’m Alireza Pourmahdavi, a founder, CEO, and builder with a background that combines deep technical expertise with practical business leadership. I’ve launched and scaled companies like Caasify and AutoVM, focusing on cloud services, automation, and hosting infrastructure. I hold VMware certifications, including VCAP-DCV and VMware NSX. My work involves constructing multi-tenant cloud platforms on VMware, optimizing network virtualization through NSX, and integrating these systems into platforms using custom APIs and automation tools. I’m also skilled in Linux system administration, infrastructure security, and performance tuning. On the business side, I lead financial planning, strategy, budgeting, and team leadership while also driving marketing efforts, from positioning and go-to-market planning to customer acquisition and B2B growth.