Designing e-mail solutions on a large scale can be a complex and costly challenge for a business: you need to build an infrastructure, set up a network, prepare IP addresses, and protect your reputation as a sender. Many third-party emailing solutions require significant contract negotiations and upfront fees. Amazon SES eliminates these problems and allows […]
Ecommerce development or magento development works for the transformations needed in the IT world. Docker is the most popular and used container platform. Virtual machines (VMs) are increasingly used by businesses. A VM is an operating system or application environment installed on software. It allows the user to enjoy the same experience as on a […]
Memory you have hot added in Linux guest virtual machines is not registered using the free or top commands.
This issue occurs when Linux requires manual intervention to expose the newly added memory in the guest. The process is called setting the memory to online.
To resolve this issue, set the memory online in RHEL/CentOS, and Ubuntu/Debian.
This guide will explain how to migrate and dockerize an existing WordPress installation without running Apache. Most other tutorials I've seen combine multiple services inside of one container, while this article tries to maintain the standard of one service per container for easier isolation, troubleshooting, performance, and scale-out. This consists of configuring multiple Docker containers with docker-compose on […]
Why an Open Guide?
A lot of information on AWS is already written. Most people learn AWS by reading a blog or a “getting started guide” and referring to the standard AWS references. Nonetheless, trustworthy and practical information and recommendations aren’t easy to come by. AWS’s own documentation is a great but sprawling resource few have time to read fully, and it doesn’t include anything but official facts, so omits experiences of engineers. The information in blogs or Stack Overflow is also not consistently up to date.
This guide is by and for engineers who use AWS. It aims to be a useful, living reference that consolidates links, tips, gotchas, and best practices. It arose from discussion and editing over beers by several engineers who have used AWS extensively.