We are living in the area of cloud computing where lot of free services are available that let us sync our important data for the sake of backup to the remote cloud storage. But what if we do not want [...]
How to Encrypt / Decrypt Files Using EncryptPad Utility on Linux
Consider a situation where you need to share your important/sensitive data with your family or friends or your critical data is stored in forms of text files on your laptop; there are always chances of hacking or information theft. The [...]
How to Use BCC Kernel Tracing Tools for Linux Performance Analysis
Greetings, BCC is now available for Ubuntu and in this article we will be showing you its extended command line use to trace Linux systems for performance monitoring. The BPF Compiler Collection (BCC) is a toolkit for building kernel tracing [...]
Learn Linux Tricks to Generate Checksums and Verify Data Integrity
The checksum is used to verify the correctness of a file. It can be described as a digital fingerprint of a file. By verifying the Checksum value we can determine the correctness of a file while it's been transferred from [...]
How to Take Screenshots Using Shots on Elementary OS and Ubuntu
In this article we are going to introduce a node.js and electron based application called shots, which is used to take screenshots on linux desktop. This package offers quite few more features compared to Ubuntu's built in screenshot tool. So lets [...]
How to Install Terraform and Provision AWS EC2 Cloud Instance
The primitives of terraform used to define infrastructure as a code (IaaC). You can build, change and version your infrastructure in AWS, Digital Ocean, Google Cloud, Heroku, Microsoft Azure etc. using the same tool. Describe components of your single application [...]
How to Setup WordPress with Docker in Ubuntu 16.04
This article covers how to setup wordpress with docker using docker-compose quickly. WordPress requires LAMP or LEMP stack but the official wordpress docker image contains PHP and Apache, leaving us to install only MySQL docker image. But for managing MySQL through [...]
How to Setup OpenVPN Access Server on AWS
This article covers how to setup OpenVPN access server using amazon's machine image. OpenVPN is an open source application that uses a VPN method for creating a secure connection between point-to-point OR site-to-site connections in bridged/routed mode. It uses SSL [...]
Docker Commands Cheat Sheet Part 1 and 2
The idea of using container was made possible by the namespaces feature added to Linux kernel version 2.6.24. Namespaces allows to create an isolated container that has no visibility or access to objects outside the container. LXC, LXD, systemd-nspawn, Linux-VServer, [...]
How to Setup RatticDB Password Management Service on Ubuntu 16.04
RatticDB is an open source Django based password management service. The API provided by it is used for access by outside programs, and audit logs to ensure full accountability. There is also a "Change Queue" so as to track which [...]
How to Install Grunt on Ubuntu 16.04
Grunt is a JavaScript task runner, that does things which you normally do with your code. One of the best examples is that, when you're about to release a website, to make your site faster, you try to use a [...]
How to Setup DNS Server with Docker Container
A Dockerfile is used to create a Docker container image, this will be used to created the DNS Server. An easy way to setup a basic DNS server with Docker is to use the BIND DNS server bundled with the Webmin [...]
How to Setup Network Monitoring with OpenNMS on Ubuntu 16.04
OpenNMS is a carrier-grade, highly integrated, open source platform designed for building network monitoring solutions. It has the capability to discover and monitor the nodes automatically in a network. Also you can monitor a service by assigning it to Open-NMS. [...]
How to Make Call using Opensource Voip Linphone on Ubuntu
We have had an article on installing Asterisk 13 on Ubuntu, but we did not go trough actually connecting with softphone and making the call. The article have been only about server side setup. Now we are going to build [...]