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Month: October 2019

How to Use the Echo Command on Linux

The echo command is perfect for writing formatted text to the terminal window. And it doesn’t have to be static text. It can include shell variables, filenames, and directories. You can also redirect echo to create text files and log files. Follow this simple guide to find out how. — Read on www.howtogeek.com/446071/how-to-use-the-echo-command-on-linux/

Top Linux developer on Intel chip security problems: ‘They’re not going away.’ | ZDNet

Greg Kroah-Hartman, the stable Linux kernel maintainer, says we’re going to see Intel chip security problems for years to come. — Read on www.zdnet.com/article/top-linux-developer-on-intel-chip-security-problems-theyre-not-going-away/

Researchers transmit energy with laser in ‘historic’ power-beaming demonstration

Researchers transmit energy with laser in ‘historic’ power-beaming demonstration — Read on m.phys.org/news/2019-10-transmit-energy-laser-historic-power-beaming.html

That Mysterious US Space Plane Just Landed After a Mind-Blowing 780 Days in Orbit

The US Air Force’s top secret, unpiloted space plane X-37B has arrived safely back on Earth after 780 days in orbit, the longest time a craft like this has ever spent in space. — Read on www.sciencealert.com/america-s-mysterious-space-plane-has-landed-after-a-record-780-days-in-orbit

How to Use the less Command on Linux

The less command lets you page through a text file, displaying a screenful of text each time. It seems like one of the simplest Linux commands at first glance, but there’s a lot more to less than meets the eye. — Read on www.howtogeek.com/444233/how-to-use-the-less-command-on-linux/

Powered by Sunlight, ‘Artificial Leaf’ Successfully Produces Clean Gas From CO2 and Water

Powered by Sunlight, ‘Artificial Leaf’ Successfully Produces Clean Gas From CO2 and Water — Read on scitechdaily.com/powered-by-sunlight-artificial-leaf-successfully-produces-clean-gas-from-co2-and-water/

Cryptography without using secret keys

Cryptography without using secret keys — Read on m.phys.org/news/2019-10-cryptography-secret-keys.html

How Friendly Fire During Second World War Triggered the slow death of the pound in your pocket

On Sept 6 1939, just three days after the declaration of war, a squadron of Hurricanes was scrambled from North Weald, Essex. — Read on www.telegraph.co.uk/technology/2019/10/08/friendly-fire-second-world-war-triggered-slow-death-pound-pocket/

How to Install Fail2Ban to Protect SSH on CentOS/RHEL 8

This article explains how to install and configure fail2ban to protect SSH and improve SSH server security against brute force attacks on CentOS/RHEL 8 — Read on www.tecmint.com/install-fail2ban-to-protect-ssh-on-centos-rhel/

How to Work with Variables in Bash

Variables are vital if you want to write scripts and understand what that code you’re about to cut and paste from the web will do to your Linux computer. We’ll get you started! — Read on www.howtogeek.com/442332/how-to-work-with-variables-in-bash/