Popular Self Driving Cars – Open Source Projects

Popular Self Driving Cars – Open Source Projects

The number of open source “self driving cars” projects are growing and all are commendable efforts but also highly ambitious. Over time, the hope is that they will mature enough for us More »

Zorin OS 12.2 Linux Released

Zorin OS 12.2 Linux Released

This week, Zorin OS released the latest upgrade to its popular Linux OS. The Zorin OS 12.2 is designed specifically for Windows users in mind who can migrate to Linux without any More »

Open Source skills are most sought after – Linux Foundation Jobs Report

Open Source skills are most sought after – Linux Foundation Jobs Report

The most sought after category is Developer where a whopping 73% of the employers wanted open source talent More »

4 Git Version Control Alternatives

4 Git Version Control Alternatives

In recent years, Git has become the defacto standard for code management, especially among open source developers. Developed by Linus Trovalds himself, the maker of Linux, it has found a lot of More »

Open Source Entrepreneur – Launching a Project Successfully

Open Source Entrepreneur – Launching a Project Successfully

Being an open source entrepreneur is a long term effort and not just a weekend project. So think hard before you make the jump. More »

 

Category Archives: Linux

How-to setup a simple UFW firewall on Ubuntu

We all need to install some form of firewall to secure our systems from any malicious activity. Not just our servers and VPS machines, but also our laptops which we access on public networks. UFW (Uncomplicated FireWall) is an ideal solution for setting up a firewall on your system.

UFW firewall is completely open source and is actually built on top of the iptables making it easier for us to manage and run the firewall.

This is the third article in the series on “Systems Security”. Here we discuss UFW firewall implementation on your system. The articles in the System Security series are listed below.

  1. How to setup SSH keys based authentication
  2. How to disable password based authentication
  3. How to setup UFW Firewall (current article)

Techie by day, blogger by night. Love the outdoors, enjoy traveling and building new and interesting things. Follow me if you want to know something.

Zorin OS 12.2 Linux Released

This week, Zorin OS released the latest upgrade to its popular Linux OS. The Zorin OS 12.2 is designed specifically for Windows users in mind who can migrate to Linux without any learning curve. The look and feel and even the user experience is eerily similar to Windows XP and that has been one of its biggest appeals since its launch.

Zorin OS has been reviewed by us before and it seems to only get better with time. Since its release nearly 9 years ago, it has grown in popularity and has been downloaded well over 17 million times.

Techie by day, blogger by night. Love the outdoors, enjoy traveling and building new and interesting things. Follow me if you want to know something.

How-to Disable Password Authentication on Linux

This how-to will explain how to disable password based authentication on Linux based systems. It is in continuation of our series on System Security. With the first one published on SSH keys based authentication. We wrote this as a lot of you sent us messages, on social media, to add tutorials on how to secure the server by disabling the password based authentication.

We recommend that the administrator should not attempt to disable password based authentication unless SSH keys are correctly setup and users can easily login using that method.

This is the second article in the series on “Systems Security”. The articles in the System Security series are listed below.

  1. How to setup SSH keys based authentication
  2. How to disable password based authentication (current article)
  3. How to setup UFW Firewall
Techie by day, blogger by night. Love the outdoors, enjoy traveling and building new and interesting things. Follow me if you want to know something.

Howto Login to servers using SSH keys authentication

Using public key authentication is far more secure and smart way to manage server authentication. And it is quite easy to implement and use. Fortunately, unix/linux terminals allow users to create public/private SSH keys combination that can be used to authenticate and login to servers without any hassle.

The traditional SSH authentication using the combination of username/password is good but really not that secure anymore. The passwords can be guessed or even broken using brute force attack. At times even a compromised terminal can give away the passwords to hackers.

This is the first article in the series on “Systems Security”. The complete list of articles in the System Security series are listed below.

  1. How to setup SSH keys based authentication (current article)
  2. How to disable password based authentication
  3. How to setup UFW Firewall
Techie by day, blogger by night. Love the outdoors, enjoy traveling and building new and interesting things. Follow me if you want to know something.

Open Source skills are most sought after – Linux Foundation Jobs Report

Linux Foundation has just come out with its annual jobs report for the year 2017. This year Open Source skills seem to be the most sought after among the 300 employers surveyed.

The trend has been turning in favor of Open source for the past many years, and this year, it seems that majority of the companies want talent that is proficient in some Open Source technology.

Techie by day, blogger by night. Love the outdoors, enjoy traveling and building new and interesting things. Follow me if you want to know something.

BOSS Index – Most Popular Open Source Projects

We all wonder which are the most popular Open Source software that we use today? Is Node.js more popular than Python? Which is more sought after; MongoDB or Cassandara? Everyone has their own opinion and reasons to choose one over the other. But which one is at the top of the list? BOSS Index wants to change that with their unique ranking.

Techie by day, blogger by night. Love the outdoors, enjoy traveling and building new and interesting things. Follow me if you want to know something.

Three amazing Ubuntu Distros of Linux for 2017

We all love Ubuntu. It has over the course of past twelve years become one of the most popular Linux Desktop Distribution in the world. In this time it has also spawned a whole generation of amazing Ubuntu distros based upon it.

Over the past many years, we have tested many of them. Some were really short lived, like GOS that we reviewed back in the day. But others, like ZorinOS, have survived and grown tremendously and have built a strong following of their own.

Techie by day, blogger by night. Love the outdoors, enjoy traveling and building new and interesting things. Follow me if you want to know something.

Mycroft – Open Source AIexa like Artificial Intelligence

Amazon’s Alexa, Apple’s Siri and Google Now have become our defacto assistants for most things mundane.  Making calls, setting appointments or reminders, streaming music, turn on lights, playing games among dozens of tasks are now handled by them.

But this space is still young, Microsoft’s Cortana, IBM’s Watson and a host of other tech giants are trying to make their mark. But as it stands today, all these platforms are built by billion dollar companies to be used on their propriety hardware/technology stack. That all has changed with the arrival of Mycroft.

Techie by day, blogger by night. Love the outdoors, enjoy traveling and building new and interesting things. Follow me if you want to know something.

Ubuntu 17.10 Artful Aardvark Expected Features

Every six months, Canonical releases their latest update to Ubuntu operating system. The latest version, Ubuntu 17.10, is expected to be released on October 19, 2017. The latest release is has been officially named as Artful Aarwark.

As per their release cycle, the October releases are short term upgrades and are supported for nine months. The annual April releases, on the other hand, are supported for five years from the date of release. They are usually termed as LTS releases. In short for “Long Term Support”.

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How to check elapsed time in Terminal

When we have processes running for a while and we want to know how long they have been running, there are a few nifty ways we can check them on Mac and Linux/Unix. Here is one such method to check elapsed time in BASH.

First grab the process ID (PID) using the following command. In the following command, we are trying to grab the process ID of mongoDB.

pgrep mongo

pgrep command tells shell prompt on Mac/Linux/Unix terminal to capture the process ID (PID) of the process we are interested. In this case it is mongoDB.

Techie by day, blogger by night. Love the outdoors, enjoy traveling and building new and interesting things. Follow me if you want to know something.