Introduction Continuous Integration (CI) and Continuous Deployment (CD) are some of the most trending topics in software development currently. To achieve the CI/CD aspect of software architecture, developers make use of containers. Containers are lightweight, virtualized, portable, software-defined environments. In containers, the software can run in isolation of other software running on the physical host machine. The focus of this …
The World of Web Servers: Apache vs. Nginx
Introduction to Apache and Nginx Web servers and protocols are designed to enable users to view web pages. They send a request to view a document that is accepted by the server. The host then essentially serves the document or information to the viewer. The web server plays a central role in letting you view and access web pages on …
How to Secure Nginx with Let’s Encrypt on Ubuntu 20.04
Having a secure website is vital to ensuring a reputable online presence for any business. Website security should be among your top concerns especially if you are transferring sensitive data between your website and your website visitors. A simple Google search of ‘how to secure a website’ will bring you several directives. One of the top results is an SSL …
How to Install the LEMP stack (Linux, Nginx, MySQL PHP) on Ubuntu 20.04
Introduction In the world of the internet, several technologies come together to form a solution that enables internet users to access dynamic content on the world wide web. LEMP stack is one of those solutions. It brings together four technologies that make a complete server solution for high-performance and dynamic websites. LEMP is an acronym for Linux, Nginx, MySQL, and …
Installing Nginx on Ubuntu 18.04
When you are done writing code for your website or web app, you will need it placed in some location where it can run and deliver content to your users. This is where web server software comes in. A simple Google search of web server software will bring you quite a list of solutions to choose from. In this tutorial, …
How to install & operate Docker on Ubuntu in the public cloud
Docker is one of the most popular products in organizations these days. It makes the process of managing applications in containers very easy. Docker provides portability, performance, agility, scalability and isolation to the applications, since it uses containers, which are more portable and require less resources than virtual machines. In this tutorial, you will go through the steps required to …
Setting up a Blog Using Ghost
Ghost is a fully open source adaptable platform for building and running modern online publications. With Ghost, setting up a blog is a child’s play. It gets easier with CloudSigma’s already prepared base library OS images. Introduction To start with, I am creating a machine on CloudSigma with 5 GHz CPU and 8 GB RAM. I am naming it “Ghost-Blog” …
Automate LetsEncrypt SSL Certificate Renewals for NginX
For those in a rush: this blog post shows you how to use free SSL certificates and have then renew perpetually (in theory) so they are near zero hassle to use. It is always nice to automate things. This saves you a lot of time and lets you concentrate on the things that actually matter and make a difference. Renewing …
An introduction to failover in the cloud
One of the hardest, but most important things to do when building your cloud architecture, is to eliminate Single Point of Failures (SPoF). What this means is that every mission critical service should be able to survive an outage of any given server. Some companies, like Netflix, have taken this to an extreme and created a service called Chaos Monkey. …