A DNS cache (sometimes called a DNS resolver cache) is a temporary database, maintained by a computer’s operating system, that contains records of all the recent visits and attempted visits to websites and other internet domains. You may want to sometimes clear your DNS Cache, especially if you give access permission to another person, or …
CouchDB is a free and open-source fault-tolerant database made and maintained by the Apache Software Foundation. It is a very good choice for a NoSQL type database, where you do not want a relational database. In this tutorial, we shall see how to configure and install the latest version of CouchDB from the Command-Line. Step …
The hosts’ file is an extremely useful albeit small text file that stores host names with associated IP addresses. It is basically a mapping from hostnames to IP addresses. Any network protocol uses this mapping to convert hostnames to numeric IP addresses. The mapping is because the Network Layer does not work with the hostnames. …
Docker is an application that simplifies the process of managing application processes in containers. Containers let you run your applications in resource-isolated processes. Containers are similar to Virtual Machines, but are much less resource-intensive, as they only need the absolute minimum to run a particular application, and does not require installation of a separate Operating …
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NOTE: Before reading this article, I would like to inform you that the ifconfig command is outdated, and is not recommended anymore. The ip command is the current replacement for the ifconfig command. Even though this program may be outdated, you may be in a system where you may need this command, so I’ll start …
PostgreSQL, or Postgres, is a relational database management system that provides an implementation of the SQL querying language. It is a popular choice for many small and large projects, having many advanced features like transaction management and transaction without read-locks, which are essential for a high performant database. Now, in this tutorial, let us look …
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In this article, we’ll look at how we can install the Laravel framework on our Ubuntu system in just a few steps! Let’s get started. Laravel is a free and open-source PHP web application framework that is used to build a wide range of scalable web applications and APIs. Step 1: Install Laravel Prerequisites Since …
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In this tutorial, we’ll look at how we can install Node.JS on Ubuntu 18.04 machine, in just a few steps! Node.JS is one of the most popular Javascript frameworks used in web development – whether it be front end or back end; this provides the complete package, and is the most used Javascript library today. …
PING (Packet INternet Groper) is a network administration utility used to check the connectivity status between a source and a destination computer/device over an IP network. It also helps you assess the time it takes to send and receive a response from the network. Basic Principles behind ping Command Whenever there is a requirement to …
The chmod (change mode) command in Linux is used to change the access mode of a file, based on the type of user accessing the file and the type of permission associated with accessing the file. File Permissions and User Groups For understanding what the types of permissions and the types of users are, let …