Language Selection

English French German Italian Portuguese Spanish

LXer

Syndicate content
Linux and Open Source news headlines
Updated: 13 min 49 sec ago

Debian Stretch and Jessie Get Kernel Patches to Mitigate Meltdown Security Flaw

Thursday 11th of January 2018 06:40:30 AM
The Debian Project released updated Linux kernels for Debian GNU/Linux 9 "Stretch" and Debian GNU/Linux 8 "Jessie" operating system series to patch the Meltdown security vulnerability and other issues.

Fedora 28 Looking To Replace Glibc's libcrypt With libxcrypt

Thursday 11th of January 2018 05:26:10 AM
As upstream Glibc is working on deprecating libcrypt for its eventual removal from the codebase, Fedora developers are looking at using libxcrypt for their hashing/encoding crypto library.

Sleep Fast, Sleep Hard with the Pzizz Android App

Thursday 11th of January 2018 04:11:49 AM
Pzizz is an Android app that generates a custom "nap narrative" that helps ease you off to dreamland and wakes you up when it's over. I was very skeptical about how restful a 20-minute forced nap could be, and at first, I doubted I'd fall asleep at all. Thankfully, I was very wrong.

Rugged mobile gateway runs Linux

Thursday 11th of January 2018 02:57:29 AM
Artila’s “Matrix-713” mobile IoT gateway runs Linux on a Cortex-A5 ATSAMA5D35, and provides Fast and Gigabit Ethernet, 2x CAN, 2x mini-PCIe, GPS, and an IMU, and supports -20 to 80°C temperatures. Artila’s Mobile IoT Gateway Matrix-713 follows a similarly headless Matrix-710 embedded computer announced last May, which also runs Linux 4.9 ......

Canonical Fixes Ubuntu 16.04 LTS Regression Causing Boot Failure on Some PCs

Thursday 11th of January 2018 01:43:09 AM
Canonical has released on Wednesday a new Linux kernel update for Ubuntu 16.04 LTS (Xenial Xerus) operating system series to address a regression introduced with yesterday's security patch against the Meltdown vulnerability.

Sayonara is A Beautiful Lightweight Music Player for Linux

Thursday 11th of January 2018 12:28:48 AM
If you are looking for a lightweight music player with clean, intuitive user interface and all the standard features, give Sayonara a try. Sayonara is one of the lesser known music players for Linux that deserve more attention. Sayonara is a small, lightweight music player available only for Linux systems. It is written in C++ and uses Qt framework. GStreamer is used as audio backend.

8 unusual FOSS tools for agile teams

Wednesday 10th of January 2018 11:14:28 PM
You might be familiar with the expression: So many tools, so little time. In order to try to save you some time, I've outlined some of my favorite tools that help agile teams work better. If you are an agilist, chances are you're aware of similar tools, but I'm specifically narrowing down the list to tools that appeal to open source enthusiasts.read more

How To Install & Configure OTRS Help Desk Ticketing System On Linux

Wednesday 10th of January 2018 10:00:08 PM
OTRS stands for Open-source Ticket Request System is one of the most flexible web-based ticketing systems.

The Perfect Server CentOS 7.4 with Apache, Postfix, Dovecot, Pure-FTPD, BIND and ISPConfig 3.1

Wednesday 10th of January 2018 08:45:48 PM
This tutorial shows how to install ISPConfig 3.1 on a CentOS 7.4 (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.

How to build custom IoT hardware with Arduino

Wednesday 10th of January 2018 07:31:28 PM
Recently I wanted to create an Arduino-based low-power Internet of Things (IoT) device for makers, with built-in sensors that could be used to deliver sensor data from any location to the cloud, and potentially control connected devices such as thermostats, lights, door locks, and other home automation products. Along the way, I learned that creating a new IoT device, from idea to prototype to final product, is not as simple as I thought it would be, and there was no "ready-to-go" development device to start with.read more

Intel Releases Processor Microcode Patch for Linux OSes, Here's How to Update

Wednesday 10th of January 2018 06:17:07 PM
Intel has released an updated microcode patch for Linux-based operating systems to address the Meltdown and Spectre security vulnerabilities.

Installing & Configuring MariaDB on RHEL/CentOS

Wednesday 10th of January 2018 05:02:47 PM
MariaDB is an open-source Relational Database & is a community developed forked-out version of MySQL database. MariaDB has replaced MySQL as default database in RHEL/CentOS 7. In this tutorial, we are will be discussing...

Ubuntu Releases Security Patch For Meltdown

Wednesday 10th of January 2018 03:48:27 PM
In another article, I have covered what is Meltdown and Spectre and told you how critical it is for us Linux users. The Linux had been fixed immediately after the two flaws were discovered. But the Ubuntu maintained kernel was not updated against Meltdown and Spectre.

Vipul Siddharth: How Do You Fedora?

Wednesday 10th of January 2018 02:34:07 PM
We recently interviewed Vipul Siddharth on how he uses Fedora. This is part of a series on the Fedora Magazine. The series profiles Fedora users and how they use Fedora to get things done. Contact us on the feedback form... Continue Reading →

How to Find a File in Linux with the Find Command

Wednesday 10th of January 2018 11:52:21 AM
Knowing where to find things on your PC is fundamental. In this article we’ll take you through a long list of ‘find’ commands that should help you find any file you’re looking for in Linux.

Linux Mint 18.3 “Sylvia” Mate Installation Guide with Screenshots

Wednesday 10th of January 2018 10:38:01 AM
The Linux Mint team has come out with another popular release of the Linux Mint 18.3 Cinnamon and Mate version that has been much welcomed by the Linux Family. The 18.3 version of the Linux Mint is considered to be a long-term support release and it means that the team will provide its support and updates for a long time until 2021. This new version comes with a lot of new features along with major enhancements to the existing features as well.

Using N_Port ID Virtualization (NPIV) with kernel-based virtual machine (KVM) guests on IBM Power servers

Wednesday 10th of January 2018 09:23:41 AM
This article provides the basic steps to use N-Port ID Virtualization (NPIV) technology in a kernel-based virtual machine (KVM) guest. Additionally, the article also provides the significance of NPIV allowing multiple guests to make use of a single physical host bus adapter (HBA) to access multiple storage devices.

Working with Vi/Vim Editor : Advanced concepts

Wednesday 10th of January 2018 08:09:20 AM
Earlier we have discussed some basics about VI/VIM editor but VI & VIM are both very powerful editors and there are many other functionalities that can be used with these editors. In this tutorial, we are going to learn some advanced uses of VI/VIM editor.

Tiny industrial temperature module runs Linux on a Zynq-7000

Wednesday 10th of January 2018 06:55:00 AM
iWave’s “iW-RainboW-G28M” is a SODIMM-style module that runs Linux on a Zynq-7000 FPGA SoC, and offers -40 to 85°C support, up to 1GB DDR3, 512MB flash, a GbE controller, and optional WiFi/BT.

The 5 best Linux distros for the enterprise: Red Hat, Ubuntu, Linux Mint and more

Wednesday 10th of January 2018 05:40:40 AM
As anyone in IT can tell you, Linux has invaded the server room. The operating system is running file servers, print servers, content delivery systems, global caching servers, data archives, VPN servers — you name it. A variety of high-quality Linux distributions allow you to expand your Linux OS deployments beyond the data center. These five are particularly good.

More in Tux Machines

Security: OpenSSL, IoT, and LWN Coverage of 'Intelpocalypse'

  • Another Face to Face: Email Changes and Crypto Policy
    The OpenSSL OMC met last month for a two-day face-to-face meeting in London, and like previous F2F meetings, most of the team was present and we addressed a great many issues. This blog posts talks about some of them, and most of the others will get their own blog posts, or notices, later. Red Hat graciously hosted us for the two days, and both Red Hat and Cryptsoft covered the costs of their employees who attended. One of the overall threads of the meeting was about increasing the transparency of the project. By default, everything should be done in public. We decided to try some major changes to email and such.
  • Some Basic Rules for Securing Your IoT Stuff

    Throughout 2016 and 2017, attacks from massive botnets made up entirely of hacked [sic] IoT devices had many experts warning of a dire outlook for Internet security. But the future of IoT doesn’t have to be so bleak. Here’s a primer on minimizing the chances that your IoT things become a security liability for you or for the Internet at large.

  • A look at the handling of Meltdown and Spectre
    The Meltdown/Spectre debacle has, deservedly, reached the mainstream press and, likely, most of the public that has even a remote interest in computers and security. It only took a day or so from the accelerated disclosure date of January 3—it was originally scheduled for January 9—before the bugs were making big headlines. But Spectre has been known for at least six months and Meltdown for nearly as long—at least to some in the industry. Others that were affected were completely blindsided by the announcements and have joined the scramble to mitigate these hardware bugs before they bite users. Whatever else can be said about Meltdown and Spectre, the handling (or, in truth, mishandling) of this whole incident has been a horrific failure. For those just tuning in, Meltdown and Spectre are two types of hardware bugs that affect most modern CPUs. They allow attackers to cause the CPU to do speculative execution of code, while timing memory accesses to deduce what has or has not been cached, to disclose the contents of memory. These disclosures can span various security boundaries such as between user space and the kernel or between guest operating systems running in virtual machines. For more information, see the LWN article on the flaws and the blog post by Raspberry Pi founder Eben Upton that well describes modern CPU architectures and speculative execution to explain why the Raspberry Pi is not affected.
  • Addressing Meltdown and Spectre in the kernel
    When the Meltdown and Spectre vulnerabilities were disclosed on January 3, attention quickly turned to mitigations. There was already a clear defense against Meltdown in the form of kernel page-table isolation (KPTI), but the defenses against the two Spectre variants had not been developed in public and still do not exist in the mainline kernel. Initial versions of proposed defenses have now been disclosed. The resulting picture shows what has been done to fend off Spectre-based attacks in the near future, but the situation remains chaotic, to put it lightly. First, a couple of notes with regard to Meltdown. KPTI has been merged for the 4.15 release, followed by a steady trickle of fixes that is undoubtedly not yet finished. The X86_BUG_CPU_INSECURE processor bit is being renamed to X86_BUG_CPU_MELTDOWN now that the details are public; there will be bug flags for the other two variants added in the near future. 4.9.75 and 4.4.110 have been released with their own KPTI variants. The older kernels do not have mainline KPTI, though; instead, they have a backport of the older KAISER patches that more closely matches what distributors shipped. Those backports have not fully stabilized yet either. KPTI patches for ARM are circulating, but have not yet been merged.
  • Is it time for open processors?
    The disclosure of the Meltdown and Spectre vulnerabilities has brought a new level of attention to the security bugs that can lurk at the hardware level. Massive amounts of work have gone into improving the (still poor) security of our software, but all of that is in vain if the hardware gives away the game. The CPUs that we run in our systems are highly proprietary and have been shown to contain unpleasant surprises (the Intel management engine, for example). It is thus natural to wonder whether it is time to make a move to open-source hardware, much like we have done with our software. Such a move may well be possible, and it would certainly offer some benefits, but it would be no panacea. Given the complexity of modern CPUs and the fierceness of the market in which they are sold, it might be surprising to think that they could be developed in an open manner. But there are serious initiatives working in this area; the idea of an open CPU design is not pure fantasy. A quick look around turns up several efforts; the following list is necessarily incomplete.
  • Notes from the Intelpocalypse
    Rumors of an undisclosed CPU security issue have been circulating since before LWN first covered the kernel page-table isolation patch set in November 2017. Now, finally, the information is out — and the problem is even worse than had been expected. Read on for a summary of these issues and what has to be done to respond to them in the kernel. All three disclosed vulnerabilities take advantage of the CPU's speculative execution mechanism. In a simple view, a CPU is a deterministic machine executing a set of instructions in sequence in a predictable manner. Real-world CPUs are more complex, and that complexity has opened the door to some unpleasant attacks. A CPU is typically working on the execution of multiple instructions at once, for performance reasons. Executing instructions in parallel allows the processor to keep more of its subunits busy at once, which speeds things up. But parallel execution is also driven by the slowness of access to main memory. A cache miss requiring a fetch from RAM can stall the execution of an instruction for hundreds of processor cycles, with a clear impact on performance. To minimize the amount of time it spends waiting for data, the CPU will, to the extent it can, execute instructions after the stalled one, essentially reordering the code in the program. That reordering is often invisible, but it occasionally leads to the sort of fun that caused Documentation/memory-barriers.txt to be written.

US Sanctions Against Chinese Android Phones, LWN Report on Eelo

  • A new bill would ban the US government from using Huawei and ZTE phones
    US lawmakers have long worried about the security risks posed the alleged ties between Chinese companies Huawei and ZTE and the country’s government. To that end, Texas Representative Mike Conaway introduced a bill last week called Defending U.S. Government Communications Act, which aims to ban US government agencies from using phones and equipment from the companies. Conaway’s bill would prohibit the US government from purchasing and using “telecommunications equipment and/or services,” from Huawei and ZTE. In a statement on his site, he says that technology coming from the country poses a threat to national security, and that use of this equipment “would be inviting Chinese surveillance into all aspects of our lives,” and cites US Intelligence and counterintelligence officials who say that Huawei has shared information with state leaders, and that the its business in the US is growing, representing a further security risk.
  • U.S. lawmakers urge AT&T to cut commercial ties with Huawei - sources
    U.S. lawmakers are urging AT&T Inc, the No. 2 wireless carrier, to cut commercial ties to Chinese phone maker Huawei Technologies Co Ltd and oppose plans by telecom operator China Mobile Ltd to enter the U.S. market because of national security concerns, two congressional aides said. The warning comes after the administration of U.S. President Donald Trump took a harder line on policies initiated by his predecessor Barack Obama on issues ranging from Beijing’s role in restraining North Korea to Chinese efforts to acquire U.S. strategic industries. Earlier this month, AT&T was forced to scrap a plan to offer its customers Huawei [HWT.UL] handsets after some members of Congress lobbied against the idea with federal regulators, sources told Reuters.
  • Eelo seeks to make a privacy-focused phone
    A focus on privacy is a key feature being touted by a number of different projects these days—from KDE to Tails to Nextcloud. One of the biggest privacy leaks for most people is their phone, so it is no surprise that there are projects looking to address that as well. A new entrant in that category is eelo, which is a non-profit project aimed at producing not only a phone, but also a suite of web services. All of that could potentially replace the Google or Apple mothership, which tend to collect as much personal data as possible.

today's howtos

Mozilla: Resource Hogs, Privacy Month, Firefox Census, These Weeks in Firefox

  • Firefox Quantum Eats RAM Like Chrome
    For a long time, Mozilla’s Firefox has been my web browser of choice. I have always preferred it to using Google’s Chrome, because of its simplicity and reasonable system resource (especially RAM) usage. On many Linux distributions such as Ubuntu, Linux Mint and many others, Firefox even comes installed by default. Recently, Mozilla released a new, powerful and faster version of Firefox called Quantum. And according to the developers, it’s new with a “powerful engine that’s built for rapid-fire performance, better, faster page loading that uses less computer memory.”
  • Mozilla Communities Speaker Series #PrivacyMonth
    As a part of the Privacy Month initiative, Mozilla volunteers are hosting a couple of speaker series webinars on Privacy, Security and related topics. The webinars will see renowned speakers talking to us about their work around privacy, how to take control of your digital self, some privacy-security tips and much more.
  • “Ewoks or Porgs?” and Other Important Questions
    You ever go to a party where you decide to ask people REAL questions about themselves, rather than just boring chit chat? Us, too! That’s why we’ve included questions that really hone in on the important stuff in our 2nd Annual Firefox Census.
  • These Weeks in Firefox: Issue 30