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Linux Posion

White Paper - Keep Your PCs Safe while Surfing the Web 13 de junho de 2013
"Keep Your PCs Safe while Surfing the Web"Learn how Qualys BrowserCheck can make sure your PCs and browsers are up to date.The Web has become a hub of information and productivity, making the web browser one of the most-used applications. This has drawn the attention of cyber criminals—making it a potential Achilles heel for security. […]
White Paper - Security and Trust: The Backbone of Doing Business Over the Internet 5 de junho de 2013
"Security and Trust: The Backbone of Doing Business Over the Internet"Gaining the trust of online customers is vital for the success of any company that requires sensitive data to be transmitted over the Web. Most consumers are concerned that their sensitive information will be intercepted in-transit, or perhaps the destination web site is manned by […]
Whitepaper - The Importance of DMARC (Domain-based Message Authentication, Reporting & Conformance) 28 de maio de 2013
"The Importance of DMARC (Domain-based Message Authentication, Reporting & Conformance)"With over 144 billion emails sent every day, spammers and phishers have a rapidly growing playground for their attacks.Keeping your customers safe goes hand in hand with keeping them happy. For instance, customers are 42% less likely to do business with a company that has undergone […]
eBook - A guide to programming Linux kernel modules 21 de maio de 2013
"The Linux Kernel Module Programming Guide"A guide to programming Linux kernel modules.An excellent guide for anyone wishing to get started on kernel module programming. The author takes a hands-on approach starting with writing a small "hello, world" program, and quickly moves from there.Far from a boring text on programming, Linux Kernel Module Programming Guide has […]
eBook - Understanding the Linux Virtual Memory Manager 13 de maio de 2013
"Understanding the Linux Virtual Memory Manager"Finally, a comprehensive guide to the Linux VM! This book describes VM in unprecedented detail, presenting both theoretical foundations and a line-by-line source code commentary.VM's behavior affects every Linux kernel subsystem and dramatically impacts overall performance. But until now, there was only one way to understand VM: study the poorly […]
eBook - Beginner's Guide to SSL Certificates 6 de maio de 2013
"Beginner's Guide to SSL Certificates: Making the Best Choice When Considering Your Online Security Options"SSL stands for “Secure Socket Layer.” It is a technology that establishes a secure session link between the visitor's web browser and your website so that all communications transmitted through this link are encrypted and are, therefore, secure. SSL is also […]
eBook - Managing Linux Systems with Webmin 2 de maio de 2013
"Managing Linux Systems with Webmin System Administration and Module Development - Free 808 page eBook"Easy, browser-based Linux/UNIX administration with Webmin--step by step.Webmin gives you an easy, browser-based solution for virtually any day-to-day Linux/UNIX administration task. Now, there's a definitive Webmin guide for every beginning-to-intermediate sysadmin. Written by Webmin's primary developer, Managing Linux® Systems with Webmin; […]
eBook - Linux Patch Management: Keeping Linux Systems Up To Date 23 de abril de 2013
"Linux Patch Management: Keeping Linux® Systems Up To Date"Linux® Patch Management offers Linux professionals start-to-finish solutions, strategies, and examples for every environment, from single computers to enterprise-class networks.Michael Jang presents patching solutions for Red Hat, Fedora, SUSE, Debian, and other distributions. He systematically covers both distribution-specific tools and widely used community tools, such as apt […]
eBook - User Mode Linux 15 de abril de 2013
"User Mode Linux®"In this book, you'll find authoritative advice on bootup, compilation, administration, specialized configurations, and much more.With User Mode Linux®; you can create virtual Linux machines within a Linux computer and use them to safely test and debug applications, network services, and even kernels. You can try out new distributions, experiment with buggy software, […]
eBook - Java Application Development on Linux 11 de abril de 2013
"Java™ Application Development on Linux® - Free 599 Page eBook"Linux is the fastest-growing Java development platform because it saves money and time by serving as a platform for both development and deployment. But developers face significant platform-specific challenges when managing and deploying Java applications in a controlled production environment.Written for Java and Linux developers alike, […]
eBook - Linux Quick Fix Notebook 3 de abril de 2013
Instant access to precise, step-by-step solutions for every essential Linux administration task from basic configuration and troubleshooting to advanced security and optimization.If you're responsible for delivering results with Linux, Linux® Quick Fix Notebook brings together all the step-by-step instructions, precise configuration commands, and real-world guidance you need. This distilled, focused, task-centered guide was written for […]
White Paper - There's an App for That, But is it Secure? 26 de março de 2013
"There's an App for That, But is it Secure?"This Tech Dossier will outline proven best practices to mitigate risk and embrace mobility without trepidation.Security has eroded over the past decade as companies strive to create applications for multiple platforms by farming design and development out to subcontractors. This trend has strained the processes and governance […]
Display Dialog boxes from shell scripts - Whiptail 26 de março de 2013
whiptail is a lightweight replacement for dialog, to provide dialog boxes for shell scripts. It is built on the newt windowing library rather than the ncurses library, allowing it to be smaller in embedded environments such as installers, rescue disks, etc.Currently, these types of dialog boxes are implemented:yes/no box, menu box, input box, message box, text box, […]
Securely erase files and partition from magnetic media - Wipe 25 de março de 2013
Recovery of supposedly erased data from magnetic media is easier than what many people wouldlike to believe. A technique called Magnetic Force Microscopy (MFM) allows any moderately funded opponent to recover the last two or three layers of data written to disk; wipe repeatedly overwrites special patterns to the files to be destroyed, using the […]
Convert webpages (HTML) to PDF using webkit - wkhtmltopdf 22 de março de 2013
Wkhtmltopdf is a command line utility that can be used to convert a webpage / html to PDF.Wkhtmltopdf Features: * Convert web pages into PDF documents using webkit * Adding headers and footers (static version only) * TOC generation (static version only) * Batch mode conversions * (Linux) No longer requires an XServer to be running (however the X11 client […]

Terra Noticias

Huawei vê receita crescer 39% apesar de pressão americana 22 de abril de 2019
A chinesa Huawei anunciou nesta segunda, 22, que sua receita aumentou 39% para 179,7 bilhões de ...
Irmãos Russo querem Doutor Destino e Kraven no Universo Cinematográfico Marvel 22 de abril de 2019
Joe e Anthony Russo finalizaram há pouco Vingadores: Ultimato, e já estão pensando no futuro do ...
"A Maldição da Chorona" lidera bilheterias de Páscoa nos EUA 22 de abril de 2019
Por Rebecca Rubin LOS ANGELES (Variety.com) - "A Maldição da Chorona", da Warner Bros. e da New ...
Perez afirma que Lawrence Stroll é a pessoa mais motivada da equipe 22 de abril de 2019
Sergio Perez revelou que o novo chefe da Racing Point, Lawrence Stroll, impactou a equipe, ...
Bilionário dinamarquês perde três filhos em atentados no Sri Lanka 22 de abril de 2019
Família de Anders Povlsen, dono do grupo de moda Bestseller e homem mais rico da Dinamarca, ...
Game of Thrones: Roteirista explica os momentos entre Jaime e Brienne no 2º episódio 22 de abril de 2019
Antecedendo a grande batalha de Winterfell contra os mortos, o episódio "A Knight of the Seven ...
Dólar ronda estabilidade ante real atento a tratativas sobre Previdência e com caminhoneiros 22 de abril de 2019
O dólar oscilava em torno da estabilidade ante o real nesta segunda-feira, com os avanços na ...
De Ferran afirma que ainda há um longo caminho a percorrer pela McLaren 22 de abril de 2019
O ritmo que a McLaren mostrou, surpreendeu muitos até agora em 2019, mas Gil De Ferran afirmou ...
Dificuldades em campo e pressão: a queda de Valentim no Vasco 22 de abril de 2019
O vice-campeonato do Vasco, no último domingo, no Maracanã, marcou o fim da passagem de Alberto ...
Thiago Gagliasso é nomeado para Secretaria de Cultura do Rio 22 de abril de 2019
Thiago Gagliasso, irmão do ator Bruno Gagliasso, foi nomeado para um cargo na Secretaria de ...

Debian Linux

How to recover the Root Password for SRX Firewall Devices 13 de janeiro de 2017
If you forget the root password for an SRX firewall device, you can use the password recovery procedure to reset the root password. This procedure also involves disabling the watchdog functionality to allow the system to properly boot into single-user mode Procedure to follow Power on the device by pressing the power button on the […]
How to reset Juniper SRX Firewall Devices 10 de janeiro de 2017
This tutorial explains how to return the configuration on a SRX firewall to the factory default version. Solution 1 Using the Reset Config Button You can use the Reset Config button on the front panel of the SRX firewall device to reset the device to its factory default configuration. The Reset Config button is recessed […]
6 Things That Ubuntu Does Better Than Windows 4 de outubro de 2016
By downloading this free guide, you agree to receive regular updates on the latest cool apps, product reviews, and giveaways from MakeUseOf. We all love Windows, right? It’s a great operating system, there’s no doubt about that. However, what if I told you that Ubuntu was better? You may laugh and think that nothing could […]
Getting Started with Ubuntu 16.04 (PDF Guide) 4 de outubro de 2016
Getting Started with Ubuntu 16.04 is a comprehensive beginners guide for the Ubuntu operating system. Getting Started with Ubuntu 16.04 is not intended to be a comprehensive Ubuntu instruction manual. It is a quick-start guide that will get you doing the things you need to do with your computer easily, without getting bogged down with […]
Linux BASH Programming Cookbook (PDF Guide) 4 de outubro de 2016
Delve into the world of Linux BASH Programming with this compact cookbook that introduces common recipes for the BASH command line! Bash is a Unix shell and command language written by Brian Fox for the GNU Project as a free software replacement for the Bourne shell. First released in 1989, it has been distributed widely […]
Linux All-in-One For Dummies (a $25.99 value) FREE! 3 de junho de 2016
Eight minibooks in one volume cover every important aspect of Linux and everything you need to know to pass level-1 certification.Linux All-in-One For Dummies explains everything you need to get up and running with the popular Linux operating system. Written in the friendly and accessible For Dummies style, the book ideal for new and intermediate […]
Introduction to Docker 23 de maio de 2016
An introduction to Docker networking and its components. In this guide, you’ll learn about the essential components of Docker networking, which have evolved from coupling simple Docker abstractions and powerful network components such as Linux bridges and Open vSwitch. We’ll also discuss the next generation of Docker networking, which is called libnetwork. Introduction to DockerContinue […]
VirtualBox Essentials Guide 9 de maio de 2016
Explore the VirtualBox Virtualization tool with this hot guide! Oracle VM VirtualBox is a free and open-source hypervisor for x86 computers from Oracle Corporation. It supports the creation and management of guest virtual machines running versions and derivations of Windows, Linux, BSD, OS/2, Solaris, Haiku, OSx86 and others, and limited virtualization of OS X guests […]
10 Easy Ways to Restore Your Linux System 15 de abril de 2016
Reverting your operating system to a previous state without consequences sounds almost like magic. You can quickly return to your work as if nothing happened, even when you don’t know what caused the problem. That’s why the System Restore feature is among the top things ex-Windows users want from Linux. If you’re one of those […]
Install Hiawatha Webserver on Debian 8 18 de setembro de 2015
Hiawatha is an open source webserver with a focus on security. I started Hiawatha in January 2002. Before that time, I had used several webservers, but I didn't like them. They had unlogical, almost cryptic configuration syntax and none of them gave me a good feeling about their security and robustness. So, I decided it […]

Linux Critic

How to Make a Bootable Linux Thumb Drive via Command Line 6 de setembro de 2016
This is another one of those things where I always have to consult my own notes because it never sticks in my head. Part of the reason for this is the fact that I am old fashioned and still insist on doing this the non-graphical way. Why? Because graphical tools for such things often fail […]
Android Apps on Chrome OS 15 de agosto de 2016
I’m going to talk about Chrome OS, Android, and Chromebooks today. Chrome OS is Linux at its core, as is Android, so they’re relevant to other things I discuss on Linux Critic, but I also use both of those platforms on a daily basis, and they’re technology, so they’re relevant anyway. I have a 2015 […]
My Choices of Applications Lately 8 de agosto de 2016
I frequently find it useful to read about the applications other people use for various functions because it inevitably prompts my natural curiosity. I almost always end up thinking, well, I haven’t tried that program… I should install it and see how it is. It’s good to expand one’s horizons. Because of that, it’s something […]
101 Posts 2 de agosto de 2016
I didn’t realize it as I was writing my post yesterday, but I had surpassed 100 Linux Critic posts in doing so. I started this blog in 2009. At the time, I had several reasons for it. Because a friend told me to One of my good friends was starting to tinker with Linux back […]
Whisker Menu 1 de agosto de 2016
Just a little blurb this morning, I thought I’d mention something about Xfce that I’ve really liked in my using it this time around: Whisker Menu To be perfectly clear, I never had any issues with the old style accordion menu but I noticed that the version of Xfce that is in the repositories for […]
Clock Configuration 17 de julho de 2016
People become accustomed to seeing certain information displayed in their panels, and one of those is always a clock of some kind. I like to configure that to my preference in whichever GUI I’m using in Linux, be it Fluxbox, Cinnamon, Xfce, or whatever. A lot of times the default options available don’t have what […]
Xfce: Stop workspace hopping by browser 9 de julho de 2016
I’ve been using the Xfce desktop environment again lately, for the first time in years, because I was curious to see how it has changed over time. As an overall, I’ve been enjoying this experiment; I was never very satisfied with it before for a variety of reasons, but its flexibility and stability are still […]
Why I Use Linux 4 de janeiro de 2016
I was a bit inspired by a post in the Linux G+ community I saw this morning and thought I’d make a quick post here to discuss my own reasons why I use Linux. One thing I’ve learned in my years of being a part of the Linux and Open Source community is that everybody […]
Change screen brightness in LXDE 29 de março de 2015
I decided to play around with LXDE on a cheap laptop I bought in an employee auction recently (on which I’m running Linux Mint Debian Edition). Everything works great – I forgot how fast and comfortable LXDE is to me, since it’s been quite a while since I used it regularly. However, the keybindings don’t […]
A quick way to change default browser in LMDE 20 de dezembro de 2014
Just a quick note here, in part for myself (because inevitably I’ll end up needing to do this again, and that was some of the reason I started this blog to begin with), but also for the benefit of anyone else who finds this handy. I’ve been using the beta version of Google Chrome on […]

How to Forge

How to Install and Configure TaskBoard on Ubuntu 18.04 LTS 19 de abril de 2019
TaskBoard is an open source Kanban-inspired app that can be used to keep track of things that need to get done. In this tutorial, we will learn how to install TaskBoard on Ubuntu 18.04 server.
How to Install Craft CMS on Debian 9 18 de abril de 2019
This tutorial will walk you through the Craft CMS installation procedure on a fresh Debian 9 server using Nginx as the web server and we will secure the website with a Let's encrypt SSL certificate.
How to install Stacer System Monitor on Ubuntu 18.04 LTS 17 de abril de 2019
Stacer is an open source tool to monitor the performance of an Ubuntu Desktop. It provides a user-friendly dashboard that can be used to monitor CPU, Memory & Disk Usage, and System cleaner to clean system caches.
How to Install OpenVPN Server and Client with Easy-RSA 3 on CentOS 7 16 de abril de 2019
OpenVPN is an open source application that allows you to create a secure private network over the public internet. In this tutorial, we will show you how to step-by-step install and configure OpenVPN on CentOS 7.6. And we will implement the certificate-based OpenVPN authentication.
Linux C Programming tutorial part 22 - Accessing command line arguments within C program 15 de abril de 2019
In the previous tutorial, we discussed multiple concepts related to pointers in C programming language. One of the concepts we discussed was an array of pointers.
Ansible Guide: Create Ansible Playbook for LEMP Stack 12 de abril de 2019
Ansible is a simple automation tool that automates software application deployment, cloud provisioning, and configuration management. In this tutorial, we're going to show you how to create basic Ansible Playbook for provisioning the LEMP Stack on Ubuntu 18.04 Server.
Linux C Programming tutorial Part 21: Character pointers, array of pointers, and pointer to pointer 12 de abril de 2019
The concept of pointers is indeed one of the very important concepts in the C programming language. Up until now, we have discussed several aspects of pointers in C. Expanding on that, in this tutorial, we will be discussing a few more pointer concepts.
How to configure an NFS server and mount NFS shares on Ubuntu 18.04 11 de abril de 2019
Network File System (NFS) is a popular distributed filesystem protocol that enables users to mount remote directories on their server. The system lets you leverage storage space in a different location and write onto the same space from multiple servers in an effortless manner. It, thus, works fairly well for directories that users need to […]
Installing Ubuntu Cloud as RDP-enabled Remote Desktop in an offline Openstack environment 10 de abril de 2019
In this tutorial, we’ll be deploying an RDP-enabled Linux host serving as a Remote Desktop on a limited access (no internet connectivity) environment. For that purpose, we’ll be using two mirrored instances of Ubuntu Cloud servers, one online and the other offline, so that the correct packages can be deployed on the offline server.
The Perfect Server CentOS 7.6 with Apache, PHP 7.2, Postfix, Dovecot, Pure-FTPD, BIND and ISPConfig 3.1 9 de abril de 2019
This tutorial shows how to install ISPConfig 3.1 on a CentOS 7.6 (64Bit) server. ISPConfig 3 is a web hosting control panel that allows you to configure the following services through a web browser: Apache web server, Postfix mail server, MySQL, BIND nameserver, PureFTPd, SpamAssassin, ClamAV, Mailman, and many more.

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