I remember having to terminate an entire Amazon EC2 instance because I somehow lost access to it via SSH. Well, looking back, termination really wasn’t necessary. Using the simple process described here, you can easily regain access to the AWS EC2 instance that you locked yourself out of.
My previous article on the subject of adding a swap file to an Amazon EC2 instance focused on adding the swap file to the instance storage (also known as ephemeral storage) that comes with certain Amazon EC2 instances. This article discusses how you can still leverage the concept of swap files even on “EBS only” Amazon EC2 instances.
Amazon Web Services (AWS) makes it very easy to expand EBS volumes. You just right-click on the volume, select modify, and enter the new, larger volume size. Done. To shrink Amazon EBS volumes, however, is a whole different matter – there is no way to do this directly using the AWS console. In this article, I describe a roundabout technique that I have often used to save some bucks in scenarios where I mistakenly over-allocated Amazon EBS when setting up EC2.
Many individuals and organizations implement virtual machines and dedicated servers using Amazon Elastic Cloud Compute (EC2). Like any other host on the Internet, your Amazon EC2 instances can be vulnerable to attack if you don’t take special precautions. In this article, I explain some of the most important things you should do to secure your Amazon EC2 instance.
On Amazon EC2, the instance type you choose determines the amount of physical memory (RAM) that you get. Larger instance types with lots of RAM are more expensive. So if you want more RAM on a medium or small EC2 instance, you can define some storage space on your disk to act as RAM when needed. The disk area you use for this purpose is called a swap file. This article explains swap files and demonstrates how to set up a 2GB swap file using ephemeral storage on an m3.medium instance of Amazon EC2 that has only 3.75GB of RAM by default.
WordPress on Amazon EC2 makes a very flexible and powerful web development combo. WordPress is a great choice because it has a huge theme and plugin ecosystem, and it is very user-friendly (non-technical people can use it comfortably). Amazon EC2 is highly scalable and practically unlimited and Amazon Web Services (AWS) provides a whole suite of website and application management tools that most people find useful at one point or another.