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Gonzalo San Gil, PhD.

Linux Security Guide (extended version) - Linux Audit - 0 views

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    "With so many articles about Linux security on the internet, you may feel overwhelmed by how to properly secure your Linux systems. With this guide, we walk through different steps, tools, and resources. The main goal is to have you make an educated choice on what security defenses to implement on Linux. For this reason, this article won't show any specific configuration values, as it would implicate a possible best value. Instead, related articles and resources will be available in the text. The goal is to make this guide into a go-to article for when you need to secure your Linux installation. If you like this article, help others and share it on your favorite social media channels. Got feedback? Use the comments at the bottom. This document in work in progress and last updated in September 2016"
Gonzalo San Gil, PhD.

Use GNURoot to install a GNU/Linux distribution on your Android device - TechRepublic - 0 views

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    "If you have a need to run a GNU/Linux distribution on your Android device, but you don't want to harm Android, Jack Wallen has the tool for you. By Jack Wallen | October 16, 2015, 3:27 AM PST RSS "
Gonzalo San Gil, PhD.

How to configure networking on Linux | Opensource.com - 0 views

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    "Connecting your Linux computer to a network is pretty straightforward, except when it is not. In this article I discuss the main network configuration files for Red Hat-based Linux distributions, and take a look at the two network startup services: the venerable network startup, and the controversial NetworkManager."
Gonzalo San Gil, PhD.

Build a home music server with Linux | Opensource.com - 0 views

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    "In this article, I am going to focus on the hardware, software, and configuration issues that we need to resolve to set up a Linux-based music server as part of the home music system. Specifically, I'll look at the Raspberry Pi, Cubox-i, and Fit-PC as options for hosting your digital home music system. Some of the material in this article can equally be applied to my previous article on the Linux laptop as a high-quality music player"
Gonzalo San Gil, PhD.

[# ! (#Free) #Tech:] Manage your Linux Box with htop - Freedom Penguin - 0 views

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    "January 14, 2016 Joe Collins 0 Comment How To There is one application that I simply must have on every Linux system I install and that's htop. It doesn't matter whether it's a virtual machine or installed on hardware. It doesn't matter what distribution it is or whether the system is running a GUI Desktop Environment or not, I gotta have htop. It has become such an integral part of "
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    "January 14, 2016 Joe Collins 0 Comment How To There is one application that I simply must have on every Linux system I install and that's htop. It doesn't matter whether it's a virtual machine or installed on hardware. It doesn't matter what distribution it is or whether the system is running a GUI Desktop Environment or not, I gotta have htop. It has become such an integral part of "
Gonzalo San Gil, PhD.

Troubleshot & repair Linux networks | Linux User & Developer - the Linux and FOSS mag f... - 1 views

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    "Posted by Gavin Thomas No network connection on your laptop or problems with your web hosting? We're here to help "The Network is the computer," is the famous, prescient quote made by Sun Microsystem's chief scientist and employee number five, John Gage, in 1984. The growth of the web, mobile and cloud computing have borne out that phrase, and a computer without a network connection is just an expensive paperweight."
Gonzalo San Gil, PhD.

Learn GNU/Linux the Fun Way | Linux Journal - 0 views

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    "Oct 02, 2014 By Doc Searls in Education Sometimes a gift just falls in your lap. This month, it came in the form of an e-mail out of the blue from Jared Nielsen, one of two brothers (the other is J.R. Nielsen) who created The Hello World Program, "an educational web series making computer science fun and accessible to all". If it had been just that, I might not have been interested. "
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    "Oct 02, 2014 By Doc Searls in Education Sometimes a gift just falls in your lap. This month, it came in the form of an e-mail out of the blue from Jared Nielsen, one of two brothers (the other is J.R. Nielsen) who created The Hello World Program, "an educational web series making computer science fun and accessible to all". If it had been just that, I might not have been interested. "
Gary Edwards

Opt out of PRISM, the NSA's global data surveillance program - PRISM BREAK - 0 views

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    "Opt out of PRISM, the NSA's global data surveillance program. Stop reporting your online activities to the American government with these free alternatives to proprietary software." A designer named Peng Zhong is so strongly opposed to PRISM, the NSA's domestic spying program, that he created a site to educate people on how to "opt out" of it. According to the original report that brought PRISM to public attention, the nine companies that "participate knowingly" with the NSA are Microsoft, Yahoo, Google, Facebook, PalTalk, AOL, Skype, YouTube, and Apple. Zhong's approach is to replace your workflow with open-source tools that aren't attached to these companies, since they easily stay off the government's radar. If you want to drop totally off the map, it'll take quite a commitment.   Are you ready to give up your operating system?  The NSA tracks everything on Windows, OSX and Google Chrome.  You will need to switch to Debian or some other brand of GNU Linux!  Like Mint!!!!! Personally I have switched from Google Chrome Browser to Mozilla Firefox using the TOR Browser Bundle - Private mode.
Gonzalo San Gil, PhD.

Best Open Source Security Tools of 2015 (and 2016) - Linux Audit - 0 views

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    "lways looking for a better tool to help you in your work? If there is one website who knows what is happening in the field of security tools, it is ToolsWatch. The site covers new tools, and promotes existing projects when they release a new version."
Gonzalo San Gil, PhD.

Why Facebook Just Launched Its Own 'Dark Web' Site | WIRED [+ TOR IS THE NSA http://lwn... - 2 views

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    "Facebook has never had much of a reputation for letting users hide their identities online. But now the world's least anonymous website has just joined the Web's most anonymous network." [# ! Just a #PR #Campaign… # ! … as, You'll learn soon… TOR IS THE NSA Posted Jul 9, 2008 21:13 UTC (Wed) by dulles (guest, #45450) Parent article: GNU/Linux free software tools to preserve your online privacy, anonymity and security (FSM) # ! Anyway, since long ago, You Must Know that there is no privacy in # ! a Network built by others -Governments and Big Companies # ! among 'em. # ! Don' come to The Web expecting privacy, as You won't look for # ! intimacy in a Stadium Full of Pe@ple… # ! … but meet the places You get in.]
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    "Facebook has never had much of a reputation for letting users hide their identities online. But now the world's least anonymous website has just joined the Web's most anonymous network."
Gonzalo San Gil, PhD.

TOR IS THE NSA [LWN.net, 2008] - 0 views

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    "Posted Jul 9, 2008 21:13 UTC (Wed) by dulles (guest, #45450) Parent article: GNU/Linux free software tools to preserve your online privacy, anonymity and security (FSM)"
Gonzalo San Gil, PhD.

Schedule your social media marketing with CampaignChain | Linux User & Developer - the ... - 0 views

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    "Posted by Oliver Hill CampaignChain, an open source tool for social media marketing, makes every campaign easier "
Gonzalo San Gil, PhD.

5 Ways to Repurpose an Old PC with Open Source Software - 1 views

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    "Most small businesses refresh their desktops and laptops every three to five years, but that process brings up a thorny question: What should you do with the old equipment? Answer: learn how to repurpose old PCs and laptops."
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    "Most small businesses refresh their desktops and laptops every three to five years, but that process brings up a thorny question: What should you do with the old equipment? Answer: learn how to repurpose old PCs and laptops."
Paul Merrell

Google Chrome Listening In To Your Room Shows The Importance Of Privacy Defense In Depth - 0 views

  • Yesterday, news broke that Google has been stealth downloading audio listeners onto every computer that runs Chrome, and transmits audio data back to Google. Effectively, this means that Google had taken itself the right to listen to every conversation in every room that runs Chrome somewhere, without any kind of consent from the people eavesdropped on. In official statements, Google shrugged off the practice with what amounts to “we can do that”.It looked like just another bug report. "When I start Chromium, it downloads something." Followed by strange status information that notably included the lines "Microphone: Yes" and "Audio Capture Allowed: Yes".
  • Without consent, Google’s code had downloaded a black box of code that – according to itself – had turned on the microphone and was actively listening to your room.A brief explanation of the Open-source / Free-software philosophy is needed here. When you’re installing a version of GNU/Linux like Debian or Ubuntu onto a fresh computer, thousands of really smart people have analyzed every line of human-readable source code before that operating system was built into computer-executable binary code, to make it common and open knowledge what the machine actually does instead of trusting corporate statements on what it’s supposed to be doing. Therefore, you don’t install black boxes onto a Debian or Ubuntu system; you use software repositories that have gone through this source-code audit-then-build process. Maintainers of operating systems like Debian and Ubuntu use many so-called “upstreams” of source code to build the final product.Chromium, the open-source version of Google Chrome, had abused its position as trusted upstream to insert lines of source code that bypassed this audit-then-build process, and which downloaded and installed a black box of unverifiable executable code directly onto computers, essentially rendering them compromised. We don’t know and can’t know what this black box does. But we see reports that the microphone has been activated, and that Chromium considers audio capture permitted.
  • This was supposedly to enable the “Ok, Google” behavior – that when you say certain words, a search function is activated. Certainly a useful feature. Certainly something that enables eavesdropping of every conversation in the entire room, too.Obviously, your own computer isn’t the one to analyze the actual search command. Google’s servers do. Which means that your computer had been stealth configured to send what was being said in your room to somebody else, to a private company in another country, without your consent or knowledge, an audio transmission triggered by… an unknown and unverifiable set of conditions.Google had two responses to this. The first was to introduce a practically-undocumented switch to opt out of this behavior, which is not a fix: the default install will still wiretap your room without your consent, unless you opt out, and more importantly, know that you need to opt out, which is nowhere a reasonable requirement. But the second was more of an official statement following technical discussions on Hacker News and other places. That official statement amounted to three parts (paraphrased, of course):
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  • 1) Yes, we’re downloading and installing a wiretapping black-box to your computer. But we’re not actually activating it. We did take advantage of our position as trusted upstream to stealth-insert code into open-source software that installed this black box onto millions of computers, but we would never abuse the same trust in the same way to insert code that activates the eavesdropping-blackbox we already downloaded and installed onto your computer without your consent or knowledge. You can look at the code as it looks right now to see that the code doesn’t do this right now.2) Yes, Chromium is bypassing the entire source code auditing process by downloading a pre-built black box onto people’s computers. But that’s not something we care about, really. We’re concerned with building Google Chrome, the product from Google. As part of that, we provide the source code for others to package if they like. Anybody who uses our code for their own purpose takes responsibility for it. When this happens in a Debian installation, it is not Google Chrome’s behavior, this is Debian Chromium’s behavior. It’s Debian’s responsibility entirely.3) Yes, we deliberately hid this listening module from the users, but that’s because we consider this behavior to be part of the basic Google Chrome experience. We don’t want to show all modules that we install ourselves.
  • If you think this is an excusable and responsible statement, raise your hand now.Now, it should be noted that this was Chromium, the open-source version of Chrome. If somebody downloads the Google product Google Chrome, as in the prepackaged binary, you don’t even get a theoretical choice. You’re already downloading a black box from a vendor. In Google Chrome, this is all included from the start.This episode highlights the need for hard, not soft, switches to all devices – webcams, microphones – that can be used for surveillance. A software on/off switch for a webcam is no longer enough, a hard shield in front of the lens is required. A software on/off switch for a microphone is no longer enough, a physical switch that breaks its electrical connection is required. That’s how you defend against this in depth.
  • Of course, people were quick to downplay the alarm. “It only listens when you say ‘Ok, Google’.” (Ok, so how does it know to start listening just before I’m about to say ‘Ok, Google?’) “It’s no big deal.” (A company stealth installs an audio listener that listens to every room in the world it can, and transmits audio data to the mothership when it encounters an unknown, possibly individually tailored, list of keywords – and it’s no big deal!?) “You can opt out. It’s in the Terms of Service.” (No. Just no. This is not something that is the slightest amount of permissible just because it’s hidden in legalese.) “It’s opt-in. It won’t really listen unless you check that box.” (Perhaps. We don’t know, Google just downloaded a black box onto my computer. And it may not be the same black box as was downloaded onto yours. )Early last decade, privacy activists practically yelled and screamed that the NSA’s taps of various points of the Internet and telecom networks had the technical potential for enormous abuse against privacy. Everybody else dismissed those points as basically tinfoilhattery – until the Snowden files came out, and it was revealed that precisely everybody involved had abused their technical capability for invasion of privacy as far as was possible.Perhaps it would be wise to not repeat that exact mistake. Nobody, and I really mean nobody, is to be trusted with a technical capability to listen to every room in the world, with listening profiles customizable at the identified-individual level, on the mere basis of “trust us”.
  • Privacy remains your own responsibility.
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    And of course, Google would never succumb to a subpoena requiring it to turn over the audio stream to the NSA. The Tor Browser just keeps looking better and better. https://www.torproject.org/projects/torbrowser.html.en
Gonzalo San Gil, PhD.

Total security part 1: online | Linux User & Developer - the Linux and FOSS mag for a G... - 0 views

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    "Get rock-solid defences on your systems and networks Follow @LinuxUserMag This article is a companion piece to our Total Privacy article"
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    "Get rock-solid defences on your systems and networks Follow @LinuxUserMag This article is a companion piece to our Total Privacy article"
Gonzalo San Gil, PhD.

voip-info.org - voip-info.org - 0 views

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    "This Wiki covers everything related to VOIP, software, hardware, VoIP service providers, reviews, configurations, standards, tips and tricks and everything else related to voice over IP networks, IP telephony and Internet Telephony. Your contributions are welcome, please read the How to add information to this wiki page and the Posting Guidelines before you post."
Gonzalo San Gil, PhD.

How Fedora monitors upstream releases - Fedora Magazine - 0 views

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    "Have you updated your Fedora system recently? Hopefully you do this regularly. Updates fix various bugs and even add new features to your most loved applications. An update, to our users, is generally a notification from the Software application. If you're an advanced user and prefer the command line, the process is simple:"
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    "Have you updated your Fedora system recently? Hopefully you do this regularly. Updates fix various bugs and even add new features to your most loved applications. An update, to our users, is generally a notification from the Software application. If you're an advanced user and prefer the command line, the process is simple:"
Gonzalo San Gil, PhD.

Top Android Phone Troubleshooting Tips - Datamation [# ! Alternative ;) Note] - 0 views

    • Gonzalo San Gil, PhD.
       
      # ! ...until You decide to migrate to a Real Open Source Free Software Mobile OS... as the (GNU/Linux Based, too) Tizen... [https://www.tizen.org/]
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    "Essential techniques to improve the performance of your Android phone, including avoiding Android slowdown and data overages."
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    "Essential techniques to improve the performance of your Android phone, including avoiding Android slowdown and data overages." [# ! While you migrate to a real open source Tizen powered phone...]
Gonzalo San Gil, PhD.

Getting started with SaltStack - 0 views

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    "I came across Salt while searching for an alternative to Puppet. I like puppet, but I am falling in love with Salt :). This maybe a personal opinion but I found Salt easier to configure and get started with as compared to Puppet. Another reason I like Salt is that it let's you manage your server configurations from the command line, for example:"
Gonzalo San Gil, PhD.

Setup A Centralized Media Server Using Emby Server | Unixmen - 0 views

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    "Yes, you read it right. Meet Emby, a free and open source application that let your personal media library, such as home videos, audios and photos, to be accessible from anywhere using any device."
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