Ivan Ivanov

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How to configure ufw to forward port 80/443 to internal server hosted on LAN

I am using UFW to protect my network. How do I forward TCP HTTP port # 80 and 443 to an internal server hosted at 192.168.1.100:80 and …

Linux

12 KPIs you must know before pitching your startup

It is critically important for the founders of a company to intimately understand the company’s key performance indicators (KPIs). Founders cannot hope to grow a company in any meaningful way without an almost obsessive focus on its KPIs.<p>Why? Because KPIs, if constructed correctly, give management …

Python Top 10 Articles for the Past Year (v.2017)

<b>For the past year</b>, we’ve ranked nearly 10,000 Python articles to pick the Top 10 stories (0.1% chance) that can help you advance your career in …

Data Science

bmon – A Powerful Network Bandwidth Monitoring and Debugging Tool for Linux

bmon is a simple yet powerful, text-based network monitoring and debugging tool for Unix-like systems, which captures networking related statistics …

Linux

How to Run ‘sudo’ Command Without Entering a Password in Linux

In case you are running Linux on a machine that you normally use alone, say on a laptop, entering a password each time you invoke sudo can become so …

Linux

Here’s How To Protect Your Privacy In Trump’s America

Easy tips to shield yourself from expanded government surveillance.<p>You’d think texts to your mom and calls to your takeout place would hardly be of interest to the government, but the feds might be monitoring your communications anyway. Sweeping government surveillance programs have grown in recent …

Learn The Basics of How Linux I/O (Input/Output) Redirection Works

One of the most important and interesting topics under Linux administration is I/O redirection. This feature of the command line enables you to …

Linux

10 Useful Sudoers Configurations for Setting ‘sudo’ in Linux

In Linux and other Unix-like operating systems, only the root user can run all commands and perform certain critical operations on the system such as …

Linux

Etcher Is the Easiest Way to Make a Raspberry Pi SD Card

Windows/Mac/Linux: While it’s gotten easier over the years to make a Raspberry Pi SD card, it’s still a little confusing for people new to the idea …

Raspberry Pi

10 Ways to Visualize Data with WordPress

The ability to easily share data is a foundation of what makes the web so great. But, it’s often been difficult to present data in an easy-to-digest …

Data Visualization

5 Ways to Find a ‘Binary Command’ Description and Location on File System

With the thousands of commands/programs available in Linux systems, knowing the type and purpose of a given command as well as its location (absolute …

Linux

Illustrating Animals With 13 Circles: A Drawing Challenge And Tutorial

New year, new beginnings! To cater for a fresh start into 2017 and all the challenges, endeavors and adventures it might bring along, artists and …

E.U. loophole counts wood energy as “carbon neutral.” It’s not.

As American foresters ramp up logging to meet the growing demand for wood pellets by power plants on the other side of the Atlantic Ocean, a new …

Nonprofits

the aperture wrench adjusts its size like a camera lens

jan 10, 2018<p>after expectant mothers relieve themselves onto the ad, the paper doubles as a pregnancy test, revealing a new 50% off price tag.<p>after …

Cameras

Googler: A Command Line Tool to Do ‘Google Search’ from Linux Terminal

Today, Google search is a well known and the most-used search engine on the World Wide Web (WWW), if you want to gather information from millions of …

Linux

How to Learn How to Code

So you want to be a programmer? Excellent. You’ve come to the right place. When I explored the realm of technology, particularly software, it was …

No More Flaming Batteries? Stanford Scientists Turn To AI To Create Safer Lithium-Ion Batteries

Clean Energy

Hack This: Where To Write Code

From bare-bones text editors to IDE monsters, the tools for building new tools.<p>The code itself, the symbols and strings that eventually dictate the behavior of a machine, is one thing, but properly preparing it and executing it requires a dedicated venue. Your operating system's standard text …

Programming

How to photograph cars like a pro

Want to take great photos of your own car, or fancy ones at motor shows? Follow our tips to help you get the best shots.<p>Do you want to take dramatic photos of the awesome exotic cars you'll find at motor shows? Or perhaps you want to get great shots of your own gorgeous car?<p>Car photography isn't …

Remotely Monitor a Raspberry Pi To See What's Running and Get Notifications If Something Goes Wrong

If you’re running a Raspberry Pi that’s doing something in the background, like working as a security camera system or a weather station, then it’s …

Raspberry Pi

6 Essential Ubuntu Snap Commands You Should Know

Snapd is the “behind the scenes” machinery that lets you install, update and run Snap apps on Ubuntu. Snapd 2.18 was recently released. It introduces …

Linux

5 Radical Raspberry Pi Projects for Our Pal Wil Wheaton

Perusing my twitter stream last night I noticed that<p>Wesley CrusherWil Wheaton has found himself in the possession of a Raspberry Pi and Arduino. Like any self respecting human in the digital age, he did the next logical thing. He asked the masses what the heck he should do with his shiny new toys. …

Malware infects computers by hiding in browser ad GIFs

Unless you still use Internet Explorer (and please don't do that), you probably don't have to worry about new malware discovered by Eset researchers. However, the Stegano exploit kit shows how adept hackers have become at slipping infected ads past major networks and then hiding the malware from …

9 Tools to Monitor Linux Disk Partitions and Usage in Linux

In this article, we will review a number of Linux command line utilities that you can use to check disk partitions in Linux. Monitoring storage …

Linux

How Simple Hydrogen Could Solve Renewable Energy's Biggest Problem

A promising technology that injects hydrogen into existing gas pipelines could be the key to stabilizing renewable energy generation.<p>One of the biggest problems with renewable energy is the way supply and demand can fluctuate wildly. If the wind stops blowing or the sun goes down, renewable energy …

Renewable Energy

Open letter about climate change from scientists to Trump

More than 800 American energy and Earth science researchers have signed a letter to Donald Trump outlining six steps they're urging him to take to …

Tesla's rechargeable battery can power your home — here's how it works

Tesla unveiled the new and improved version of its at-home battery, Powerwall 2, in October.<p>The at-home battery can store solar energy and provide backup power for your home. It fits into Tesla's larger energy ambitions since it acquired SolarCity in November, allowing it to offer solar roof and …

Clean Energy

50 Most Important Raspberry Pi Sensors And Components Listed

Raspberry Pi enthusiasts or those looking to learn a little more about the awesome mini PC and supported components, may be interested in a new list …

Australian Photographer Captures the Maelstrom of Gigantic Waves, and All You Can Say is WOW!

Luke Shadbolt is a photographer who specializes in action sports, lifestyle and fashion. But his real passion is water photography, as you can see …

Nature Photography

Find Out All Live Hosts IP Addresses Connected on Network in Linux

There are plenty of network monitoring tools you can find in the Linux ecosystem, that can generate for you a summary of the total number of devices …

Linux