Everyone want to keep Django timezone support but sometimes you need to keep your SQL queries a way from timezone conversion especially if by default your application timezone is UTC. Django will do something like this `CONVERT_TZ(`app_incident`.`datetime`, 'UTC', 'UTC'))` and it will return `Null` if the timezone table is empty. Even that conversion is not even needed.

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By default Django has a `date` lookup that support timezones. It actually will wrap your field with `CONVERT_TZ` in case `USE_TZ` is `True`. This is pretty awesome unless you have timezones table empty because this call will return `Null.`

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Load balancers aren't efficient in a dynamic environment where we scale services up or down. Consul uses a registry to keep a real-time list of services, their location, and their health. Services query the registry to discover the location of upstream services and then connect directly. This allows services to scale up/down and gracefully handle failure

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Consul is a tool for discovering and configuring services in your infrastructure. It provides several key features like service discovery, health checking, KV store and multi datacenter support.

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Docker is a set of platform as a service (PaaS) products that use OS-level virtualization to deliver software in packages called containers. Containers are isolated from one another and bundle their own software, libraries and configuration files.

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Today I’ll show you how to build your own Facebook Messenger Chat Bot in Java. We’ll use Spark Web Framework, Racter Java Package, Gradle and Ngrok. So Let’s get started.

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One of the most difficult tasks for software engineers is scaling out the databases incase of large traffic applications. Today we will discuss one of the horizontal scaling techniques which is the Master-Master replication. Master-Master replication adds speed and redundancy and also distribute the writes load over many servers.

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Last week I worked with Pusher. Pusher is really amazing product to build scalable realtime apps. Also there is slanger and Poxa, Both are open source implementation compatible with Pusher libraries. But today we will use PHP, NodeJs, SocketIO and Redis Pub/Sub To work with realtime messaging.

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LAMP stack is a group of open source software and it stands for Linux, Apache, MySQL, and PHP. To install them Just run the following bash script with a non-root user with sudo privileges configured on a server running Ubuntu.

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Tomcat is an open source web server used to serve Java Web Applications and provides a Java HTTP web server environment in which Java code can run. To install Tomcat Server Just run the following bash script with a non-root user with sudo privileges configured on a server running Ubuntu 16.04.

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