How to embed Python code in C program
Python is one of the most popular programming languages due to its simple syntax, ease of learning and cross-platform support. Besides, many high quality Python libraries and modules are available at...
View ArticleLinux vs. Windows device driver model: architecture, APIs and build...
Device drivers are parts of the operating system that facilitate usage of hardware devices via certain programming interface so that software applications can control and operate the devices. As each...
View ArticleHow to set up Zimbra mail server on CentOS
In this tutorial, we will examine the process of installing Zimbra mail server in CentOS Linux environment. Zimbra is my personal favorite when it comes to open-source mail servers as it comes with a...
View ArticleHow to open a TCP/UDP socket in a bash shell
Suppose you want to open a TCP/UDP socket on a Linux server for various reasons. For example, you want to check if a specific address/port is reachable. Or you want to fetch a remote web page or invoke...
View ArticleHow to migrate Cacti to a new server
Cacti is a popular network graphing tool widely used by many service providers. For those of you who have been using Cacti to visualize the performance of various elements of your network, it is...
View ArticleHow to set up a self-hosted project management web app on Linux
When a group of employees collaborate on a project, there is need for handling all aspects and complexities of the project from start to finish, such as task assignment, scheduling, budget management,...
View ArticleHow to allow incremental file sync for many users on Linux
Suppose you as a software developer has set up daily builds of your software for testing purposes. Every day you make a new build, users have to re-download the updated build to evaluate it. In this...
View ArticleHow to improve the security of Magento e-commerce website
Magento is an e-commerce software platform used by small businesses and leading brands, and its community edition is a freely available open-source program. Thanks to the huge collection of third-party...
View ArticleHow to build a kernel module with DKMS on Linux
Suppose you wanted to install a device driver for a new graphics card, a WiFi dongle, or a network interface card that you purchased, and for whatever reason (e.g., missing prebuilt driver, outdated...
View ArticleHow to connect your LAN to Amazon Virtual Private Cloud
If you have a lot of your services hosted in the Amazon AWS public cloud, and are looking for ways to access your leased AWS resources in a secure way, this article is for you. Initially you started...
View ArticleHow to validate JSON from the command line on Linux
Due to its syntactic simplicity and flexibility, JSON (JavaScript Object Notation) has become pretty much the de-facto standard data exchange format used in many web applications. As JSON becomes...
View ArticleHow to move Unity launcher to the bottom of screen on Ubuntu
By design Unity launcher is placed at the left side of Ubuntu desktop and has remained immovable ever since it was introduced to the public in 2010. Ubuntu users who wanted to have Mac OS X-style...
View ArticleHow to set up Apt caching server on Ubuntu or Debian
If you often create guest VMs or containers on your Linux computer, you will go through package installation many times across different VMs/containers. In that case, your time may be better spent on...
View ArticleHow to monitor OpenFlow messages with packet sniffer
As a key enabler for software-defined networking (SDN), OpenFlow was initially introduced in the academia as a way to enable innovation on production networks which had traditionally been built with...
View ArticleHow to search multiple pdf documents for words on Linux
When it comes to searching text within a PDF document, pretty much every PDF reader supports it. However, it becomes tricky when there are more than one PDF document to search. While the official Adobe...
View ArticleHow to access Amazon Cloud Drive from the command line on Linux
In today's online retail market dominated by cut throat competitions, one player stands in the forefront, leaving the pack far behind, and that is Amazon. Amazon has been judiciously expanding its...
View ArticleWhat is good stock portfolio management software on Linux
If you are investing in the stock market, you probably understand the importance of a sound portfolio management plan. The goal of portfolio management is to come up with the best investment plan...
View ArticleHow to use KVM from the command line on Debian or Ubuntu
There are different ways to manage virtual machines (VMs) running on KVM hypervisor. For example, virt-manager is a popular GUI-based front-end for VM management. However, if you would like to use KVM...
View ArticleWhat are good web server benchmarking tools for Linux
As far as web server performance is concerned, there are many different factors at play, e.g., front-end application design, network latency/bandwidth, web server configuration, server-side in-memory...
View ArticleWhat are the best plugins to increase productivity on Emacs
Over a year ago now, I went looking for the best plugins to turn Vim into a full-fledged IDE. Interestingly, a lot of the comments on that post were about how Emacs already has most of these plugins...
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