Angry IP Scanner is an open-source and cross-platform network scanner. It is very faster and simple to use platform which scans IP addresses and ports. TCP/IP(Angry IP) network scanner allows users to easily scan IP addresses within any range of your choice via a user-friendly interface. Once Angry IP Scanner detects an active IP address, then it resolves MAC address, hostname, and port/s. The gathered data information can be saved as TXT, CSV, XML or IP-Port list files. This article describes” How to install and use IP scanner in Linux”Installing Angry IP ScannerTo install Angry IP Scanner in Ubuntu/Linux Mint, ... Read More

In this article, we will learn how to setup and configure Ruby on Rails, which is the most popular stack application used by the developers which is generally used to create sites and web applications. The Ruby is a programming language where the programer’s use with the combination of Rails development frameworks to make the application development fast and simple.‘RVM’ (Ruby Version Manager) is the command-line tools used to install the Ruby and Rails which also provides a good environment for application development using Ruby on Rails can also provide multiple Ruby environments.PrerequisitesWe needed an Ubuntu 16.04 installed machine with ... Read More

In this article, we will learn how to setup and configure Ruby on Rails which is the most popular stack application used by the developers which is used to create sites and web applications. The Ruby is a programming language where the programer’s use with the combination of Rails development framework to make the application development fast and simple.‘rbenv’ is the command-line tools used to install the Ruby and Rails which also provides a good environment for application development using Ruby on Rails. ‘rbenv’ provides the application specific versions of Ruby.PrerequisitesWe needed an Ubuntu 16.04 installed machine with a non-root ... Read More

In this article we will learn about how to set up Postfix on Ubuntu 16.04, Postfix is a very popular open-source MTA (Mail Transfer Agent) which can be used to relay the emails on Ubuntu Linux systems, most of the public mail servers over the real world use the postfix only.PrerequisitesTo complete this demo we needed the followingA machine with Ubuntu 16.04 installed and a non-root user with sudo permissions on the machine.A (FQDN) fully Qualified Domain Name points to the machine.We assume the Domain FQDN mail.mydomain.comInstalling the PostfixAs Postfix is available with Ubuntu default repository we can directly go ... Read More

Shiny is an R package that allows Linux users to convert R code into an interactive webpage and documents online. You can take your shiny apps and share them in your organisation or the world. This article explains about how to set up shiny server on Ubuntu.Installing Shiny Server on UbuntuBefore installing Shiny server, we need to install the shiny R package. To install R packages, use the following command –$ sudo apt-get install r-baseThe sample output should be like this -Reading package lists... Done Building dependency tree Reading state information... Done The following packages were automatically installed and are ... Read More

In this article, we will learn about how to setup and configure the Apache Web server to restrict from visitors without authentication where we can hide some important and critical information to the un-authenticated users.PrerequisitesWe needed an Ubuntu machine with a non-root user with Sudo privileges.An Apache2 web server installed on the machine.Installing the Apache UtilitiesWe needed to install an Apache2 utility package called ‘htpasswd’ where this utility is a part of ‘apache2-utils’ packages.This will help us to create and manage the username and password which is needed to access the restricted part of the website.Below is the command to ... Read More

In this article, we will learn how to setup and configure Jekyll Development Site. Jekyll provides the benefits of the Content Management System (CMS) with performance and security which appears in the database-driven sites. It is also called as blog-aware which has features of handling the date-organized contents. It is especially suitable for the people who work off-line, which also provides the lightweight editor with content management which has the version control for tracking the changes made on their websites.PrerequisitesA machine with Ubuntu 16.04 installed.A user with Sudo permissions on the machine.Installing the Jekyll Development Site on Ubuntu 16.04Before we ... Read More

Docker is an open-source project that automates the deployment of application inside the software container. The container allows the developer to package up all project resources such as libraries, dependencies, assets etc. Docker is written in Go Programming language and is developed by Dotcloud. It is basically a container engine which uses the Linux Kernel features like namespaces and control groups to create containers on top of an operating system and automates the application deployment on the container.Installing DockerBefore install Docker, it should required updated packages. To update the packages, use the following command –$ sudo apt-get updateUse the following ... Read More

Do you know how to remove empty lines from the file in Ubuntu? It may also be performed manually if the file has few strains but if the file has hundreds of thousands of line that is tough to be accomplished manually. This article explains you about – how to remove empty lines from a file on Ubuntu.Our sample file should be like this –Use the following command to remove the Empty lines from a file as shown below –$ ex -s +'v/\S/d' -cwq abc.txtIn the above command abc.txt indicates the file name. The sample output should be like this ... Read More

Cheat is a command line primarily based on Python software that lets in system administrators to view and save helpful cheat sheets. It retrieves simple-text examples of a delegated command which will remind the user of alternatives, arguments, or commonplace makes use of. Cheat is used for “commands which you use frequently, however now not frequently sufficient to consider”Installing CheatBefore installing Cheat, we need to make sure that everything’s up to date on the system as shown in the below command –$ sudo apt-get update && sudo apt-get upgradeInstalling Cheat is best done with the Python package manager Pip. To ... Read More