Leonardo Martins De Oliveira

179 Flips | 2 Magazines | 167 Likes | 44 Following | 11 Followers | @leo_oliv | Keep up with Leonardo Martins De Oliveira on Flipboard, a place to see the stories, photos, and updates that matter to you. Flipboard creates a personalized magazine full of everything, from world news to life’s great moments. Download Flipboard for free and search for “Leonardo Martins De Oliveira”

New Wi-Fi attack cracks WPA2 passwords with ease

The common Wi-Fi security standard is no longer as secure as you think.<p>A new way to compromise the WPA/WPA2 security protocols has been accidentally …

Information Systems

A Linux Sysadmin’s Guide to Network Management, Troubleshooting and Debugging

A system administrator’s routine tasks include configuring, maintaining, troubleshooting, and managing servers and networks within data centers. …

How to See Who's On Your Wi-Fi

Is your internet sluggish? If you suspect a neighbor is stealing your Wi-Fi, these two apps can help you identify devices using your connection and …

How To: Hack Wi-Fi & Networks More Easily with Lazy Script

Wi-Fi tools keep getting more and more accessible to beginners, and the LAZY script is a framework of serious penetration tools that can be explored …

Bash Brackets Quick Reference

<i>Cover image credit: Fonts.com</i><p>Bash has lots of different kinds of brackets. Like, many much lots. It adds meaning to doubling up different brackets, …

Use LVM to Upgrade Fedora

Most users find it simple to upgrade from one Fedora release to the next with the standard process. However, there are inevitably many special cases …

Welcome to Fedora CoreOS

<i>This is a message from Fedora Project Leader Matthew Miller.</i>Hi everyone. If you saw my talk at DevConf.cz this year, you’ll remember I discussed the …

Tcpdump Examples

Practical tcpdump examples to lift your <b>network troubleshooting</b> and <b>security</b> testing game. Commands and tips to not only use tcpdump but master ways to …

10 7zip (File Archive) Command Examples in Linux

7-Zip is a free open source, cross-platform, powerful, and fully-featured file archiver with a high compression ratio, for Windows. It has a powerful …

Manage your workstation with Ansible: Configure desktop settings

In the first article of this series on using Ansible to configure a workstation, we set up a repository and configured a few basic things. In the …

'Spider-Man' of Paris to get French citizenship after child rescue

President Macron thanks Malian migrant who climbed four storeys to save boy<p>As an undocumented migrant in France, Mamoudou Gassama knew it was best to keep his head down, to not draw attention to himself.<p>But when he spotted a young child dangling from the balcony of a fourth-floor Paris flat he felt …

Citizenship

Grafana – An Open Source Software for Analytics and Monitoring

Grafana is an open source, feature rich, powerful, elegant and highly-extensible analytics and monitoring software that runs on Linux, Windows and …

Usuários do Google Chrome são infectados por malware em extensões

Quem é usuário de internet sabe que estamos expostos a todo momento a perigos que nos rodeiam, e dessa vez não foi diferente. A Radware, empresa de …

Linux Password Manager: 22 Reviewed and Compared for Linux Nerds

What I did in the past regarding keeping safe of my passwords? I wrote all the passwords in a plain document and saved on my local computer. OMG! …

Critical Linux Flaw Opens the Door to Full Root Access

The vulnerability allows an attacker to execute a malware or other payloads on a client machine by sending malicious messages from the DHCP server.

Information Security

Protect your Fedora system against this DHCP flaw

A critical security vulnerability was discovered and disclosed earlier today in <i>dhcp-client</i>. This DHCP flaw carries a high risk to your system and …

Breaking Through The Vim Learning Curve

I tried to learn Vim, believe me, many times. As many times as I tried, I failed. That is until two weeks ago, when something inside my ancient and …

Vim

Tuning Ansible

<i>Special Thanks: This article was made possible by support from Linux Professional Institute</i><p>Among configuration management tools, the most well known …

Infographic: Essential parts of your LinkedIn presence

For most communicators, LinkedIn is an essential resource.As one of the biggest and most professional social networks, LinkedIn can help you find a …

This malware is harvesting saved credentials in Chrome, Firefox browsers

Researchers say the new Vega Stealer malware is currently being used in a simple campaign but has the potential to go much further.<p>Vega Stealer …

Google officially announces Linux app support on Chrome OS

The first evidence of Linux application support on Chrome OS appeared in February, with a Terminal app showing up on Chrome OS Dev soon after. Google …

Applying Your Linux Skills to macOS: An Introduction

All About Linux and Linux+, Linux is essentially an open-source UNIX operating system. And since nearly all of the concepts, commands and files are …

Installing Realtek rtl8723be driver for Ubuntu, Debian or Fedora

Originally written by Chirath R<p>I have been searching for a fix for the wifi problems in my <b>HP Pavillion ab-028tx</b>. It’s having a <b>Realtek rtl8723be</b> Wifi …

40 Linux Server Hardening Security Tips [2017 edition]

Securing your Linux server is important to protect your data, intellectual property, and time, from the hands of crackers (hackers). The system …

20 Unix/Linux Command Line Tricks - Part I

Unix and Linux command line tricks for the cli user. Enjoy!

Command-line

How to patch update Suse Enterprise Linux server command

How do I patch and update Suse Enterprise Linux server from the command line option over ssh based session?The post How to patch update Suse …

ss command: Display Linux TCP / UDP Network/Socket Information

Some Linux distro considered the nestat command as deprecated and therefore should be phased out in favor of more modern replacements such as ss …

Russians hack home internet connections — here’s how to protect yourself

<b>(PGlebStock via Shutterstock)</b><p>Hackers are persistent and are always looking to find flaws in routers and other systems<p>Sandeep Nair Narayanan • Anupam Joshi • Sudip Mittal<p>May 6, 2018 12:00am (UTC)<p>This article was originally published on The Conversation.<p>In late April, the top federal cybersecurity …

Eight new Spectre variants affecting Intel chips discovered, four are "high risk"

Spectre and Meltdown may not be getting as many headlines as they were a few months ago, but that could soon all change following the discovery of …

Free up over 30GB of storage space by cleaning up after the Windows 10 April 2018 Update

Microsoft has just released another huge update to Windows 10. The April 2018 Update introduces lots of new features and general improvements, …