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Engineering & Product Blog
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How to Install Docker and Docker Compose on Ubuntu 20.04 LTS Focal Fossa
As part of our Enterprise subscription for Global Holiday Data we use Docker and Docker Compose for our enterprise deployment. This is mostly for clients that need PCI and HIPAA compliance. This workflow allows them to run our products within their own infrastructure. We will be going over the setup and also plan on making […]
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How to Convert True or False String to Its Corresponding Boolean Value in Javascript
The are multiple situations that when a boolean value of either True or False is passed via a JSON API or an environment variable such as a .env file, it gets returned as a string, which in some circumstances becomes a little difficult to work with. In this post, we will be going over 5 […]
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How to Install and Configure Graylog2 for Log Management on Debian and Ubuntu
Log management and monitoring is something any production-level web application should take seriously. Here at Calendarific, due to the number of API calls we receive daily, it is important to keep accurate logs which is used to track down malicious actors, determine how our users are consuming the API and even identify errors within the […]
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MySQL Database Performance Optimization on Ubuntu 19
Databases are generally considered as the main source of performance bottlenecks in most applications. We usually use tricks like caching to get around them. Here, we will be looking at a tool to help fine-tune a MySQL database to thereby improving the speed and general performance. We will be using a tool called MySQLTuner MySQLTuner […]
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How To Reset Forgotten MariaDB/MySQL Root Password on Ubuntu and CentOS
This article will come in handy if you have forgotten your MariaDB root password. If you are setting up a MySQL or MariaDB database server for the first time, chances are you will be running mysql_secure_installation soon afterward to implement basic security settings. One of these settings is the password for the database root account […]
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How to Setup Nginx with PHP and MySQL (LEMP Stack) on Ubuntu 19.04 Disco Dingo
With the release of the new version of Ubuntu, version 19.04, code-named Disco Dingo, we thought it would be nice to go over how to install one of the more popular web development stacks which people tend to use. The Nginx, PHP, MySQL stack. Nginx which is actually pronounced as “engine x” is a free, […]
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MySQL/MariaDB Query for Counting API Requests per Day
When we started our holidays API project, we only had a select number of users using our closed beta, we needed a quick and easy way to track API metrics. The first metric we wanted to track was obviously, the number of requests, the beta API was receiving. In this article, we are going to […]
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How to Install and Configure NTP Server and Client on Ubuntu 19.04 Disco Dingo
NTP which is short for the Network Time Protocol is a protocol that is used to synchronize all the date and time of system clocks in a network to use the same time. The term NTP stands for the protocol itself and also the client and server programs running on the networked computers. NTP belongs […]
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| Worldwide Holidays By Months |
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| January 2020 |
| February 2020 |
| March 2020 |
| April 2020 |
| May 2020 |
| June 2020 |
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| December 2020 |