As an IT expert with a strong background in cloud computing, I am confident that I can swiftly and effectively resolve the connection issues you're facing with your AWS EC2 instance. With my certifications, including Microsoft Certified Azure Solutions Architect Expert and Azure Administrator Associate, I have a deep understanding of cloud platforms and can adeptly apply this knowledge to troubleshooting complex issues such as the one you're experiencing.
Moreover, my expertise goes beyond just AWS. My familiarity with multiple cloud providers such as Azure, Vultr, OVH and Digital Ocean helps me approach problems from different angles to find the most efficient solution. I have also mastered tools like Terraform, ARM templates, PowerShell, Puppet, Ansible and more to facilitate infrastructure automation which could play an essential role in ensuring your EC2 instance is up and running in no time.
Finally, my broad skill set extends to Linux administration- including Centos, Ubuntu, and Debian distributions- giving me a comprehensive understanding of networks and system architecture. This will be invaluable in diagnosing and fixing connectivity problems on your domain. Please know that I am ready to start immediately-let me bring my proficiency and commitment to deliver an urgent fix for your EC2 instance.