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Live Patching Now Available For Linux

Thu, 12/02/2015 - 20:17
New submitter cyranix writes "You may never have to reboot your Linux machine ever again, even for kernel patching," and excerpts from the long (and nicely human-readable) description of newly merged kernel code that does what Ksplice has for quite a while (namely, offer live updating for Linux systems, no downtime required), but without Oracle's control. It provides a basic infrastructure for function "live patching" (i.e. code redirection), including API for kernel modules containing the actual patches, and API/ABI for userspace to be able to operate on the patches (look up what patches are applied, enable/disable them, etc). It's relatively simple and minimalistic, as it's making use of existing kernel infrastructure (namely ftrace) as much as possible. It's also self-contained, in a sense that it doesn't hook itself in any other kernel subsystem (it doesn't even touch any other code). It's now implemented for x86 only as a reference architecture, but support for powerpc, s390 and arm is already in the works (adding arch-specific support basically boils down to teaching ftrace about regs-saving).

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Categories: Linux News

Elementary OS: Why We Make You Type "$0"

Wed, 11/02/2015 - 21:20
jones_supa writes Open source software can always be acquired without charge, but can still incur significant development costs. Elementary OS wants to make people aware of this, and have changed their website to suggest donating when downloading, and make users explicitly enter "$0" if they want a free download. This is the same strategy Canonical has used when offering Ubuntu. The Elementary OS blog explains: "Developing software has a huge cost. Some companies offset that cost by charging hundreds of dollars for their software, making manufacturers pay them to license the software, or selling expensive hardware with the OS included. Others offset it by mining user data and charging companies to target ads to their users. [...] If we want to see the world of open source software grow, we should encourage users to pay for its development; otherwise it'll be underfunded or developers will have to resort to backdoor deals and advertising. And nobody wants that future." Currently the only people who have received money for working on Elementary OS have been community members through their bounty program.

Read more of this story at Slashdot.








Categories: Linux News

Is Modern Linux Becoming Too Complex?

Wed, 11/02/2015 - 14:13
An anonymous reader writes: Debian developer John Goerzen asks whether Linux has become so complex that it has lost some of its defining characteristics. "I used to be able to say Linux was clean, logical, well put-together, and organized. I can’t really say this anymore. Users and groups are not really determinitive for permissions, now that we have things like polkit running around. (Yes, by the way, I am a member of plugdev.) Error messages are unhelpful (WHY was I not authorized?) and logs are nowhere to be found. Traditionally, one could twiddle who could mount devices via /etc/fstab lines and perhaps some sudo rules. Granted, you had to know where to look, but when you did, it was simple; only two pieces to fit together. I've even spent time figuring out where to look and STILL have no idea what to do."

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Categories: Linux News

New Multi-Purpose Backdoor Targets Linux Servers

Mon, 09/02/2015 - 21:08
An anonymous reader writes A new multi-purpose Linux Trojan that opens a backdoor on the target machine and can make it participate in DDoS attacks has been discovered and analyzed by Dr. Web researchers, who believe that the Chinese hacker group ChinaZ might be behind it. "First, Linux.BackDoor.Xnote.1 sends information about the infected system to the server. It then goes into standby mode and awaits further instructions. If the command involves carrying out some task, the backdoor creates a separate process that establishes its own connection to the server through which it gets all the necessary configuration data and sends the results of the executed task," the researchers explained.

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Categories: Linux News

Ask Slashdot: Is There a Web Development Linux Distro?

Sun, 08/02/2015 - 17:55
Qbertino writes I've been a linux user for more than 15 years now and in the last ten I've done basically all my non-trivial web development on Linux. SuSE in the early days, after that either Debian or, more recently, Ubuntu, if I want something to click on. What really bugs me is, that every time I make a new setup, either as a virtual machine, on concrete hardware or a remote host, I go through 1-2 hours of getting the basics of a web-centric system up and running. That includes setting PHP config options to usable things, setting up vhosts on Apache (always an adventure), configging mod_rewrite, installing extra CLI stuff like Emacs (yeah, I'm from that camp) walking through the basic 10-15 steps of setting up MySQL or some other DB, etc. ... You get the picture. What has me wondering is this: Since Linux is deeply entrenched in the field of server-side web, with LAMP being it's powerhouse, I was wondering if there aren't any distros that cover exactly this sort of thing. You know, automatic allocation of memory in the runtime settings, ready-made Apache http/https/sftp/ftp setup, PHP all ready to go, etc. What are your experiences and is there something that covers this? Would you think there's a need for this sort of thing and would you base it of Debian or something else? If you do web-dev, how do you do it? Prepareted scripts for setup? Anything else? ... Ideas, unkown LAMP distros and opinions please."

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Categories: Linux News

Xfce Getting a New Version Soon

Sun, 08/02/2015 - 15:30
jones_supa writes It looks like the release of Xfce 4.12 is finally about to materialize. It has been about two and half years since the last stable release. There is now a concerted effort underway to ship a new release of this lightweight GTK+2 desktop environment out around the end of February or early March. "As we have discussed the status and progress of core components with many of you individually, we feel confident that the state of Xfce is good enough to polish some final edges and push more translations until then," wrote Simon Steinbeiß on the xfce4-dev mailing list. The official list of showstopper bugs does not look too bad either. However, looking at the long time between releases certainly makes one think if the project could have use for some extra resources.

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Categories: Linux News

Why It's Important That the New Ubuntu Phone Won't Rely On Apps

Fri, 06/02/2015 - 23:25
tedlistens writes: To tackle the chicken-and-egg problem faced by the Windows Phone or Blackberry — you need an app ecosystem to gain market share, but you need market share in order to entice developers to your platform — Canonical, the creators of the free, open-source Linux-based OS Ubuntu, have taken a novel approach with their new phone, which will be launched in Europe next week: The phone — the Aquaris E4.5 Ubuntu Edition, made with Spanish manufacturers BQ — won't feature apps. Instead, it will have a new user experience paradigm called Scopes. These are "essentially contextual home-screen dashboards that will be much simpler and less time-consuming to develop than full-on native apps." For instance, the music Scope will pull songs from Grooveshark alongside music stored locally on your device, without strong differentiation between the two. The user experience, writes Jay Cassano at Fast Company, seems a lot more intuitive than the "app grids" that dominate most devices.

Read more of this story at Slashdot.








Categories: Linux News

Why It's Important That the New Ubuntu Phone Won't Rely On Apps

Fri, 06/02/2015 - 23:25
tedlistens writes: To tackle the chicken-and-egg problem faced by the Windows Phone or Blackberry — you need an app ecosystem to gain market share, but you need market share in order to entice developers to your platform — Canonical, the creators of the free, open-source Linux-based OS Ubuntu, have taken a novel approach with their new phone, which will be launched in Europe next week: The phone — the Aquaris E4.5 Ubuntu Edition, made with Spanish manufacturers BQ — won't feature apps. Instead, it will have a new user experience paradigm called Scopes. These are "essentially contextual home-screen dashboards that will be much simpler and less time-consuming to develop than full-on native apps." For instance, the music Scope will pull songs from Grooveshark alongside music stored locally on your device, without strong differentiation between the two. The user experience, writes Jay Cassano at Fast Company, seems a lot more intuitive than the "app grids" that dominate most devices.

Read more of this story at Slashdot.








Categories: Linux News

Why It's Important That the New Ubuntu Phone Won't Rely On Apps

Fri, 06/02/2015 - 23:25
tedlistens writes: To tackle the chicken-and-egg problem faced by the Windows Phone or Blackberry — you need an app ecosystem to gain market share, but you need market share in order to entice developers to your platform — Canonical, the creators of the free, open-source Linux-based OS Ubuntu, have taken a novel approach with their new phone, which will be launched in Europe next week: The phone — the Aquaris E4.5 Ubuntu Edition, made with Spanish manufacturers BQ — won't feature apps. Instead, it will have a new user experience paradigm called Scopes. These are "essentially contextual home-screen dashboards that will be much simpler and less time-consuming to develop than full-on native apps." For instance, the music Scope will pull songs from Grooveshark alongside music stored locally on your device, without strong differentiation between the two. The user experience, writes Jay Cassano at Fast Company, seems a lot more intuitive than the "app grids" that dominate most devices.

Read more of this story at Slashdot.








Categories: Linux News

Why It's Important That the New Ubuntu Phone Won't Rely On Apps

Fri, 06/02/2015 - 23:25
tedlistens writes: To tackle the chicken-and-egg problem faced by the Windows Phone or Blackberry — you need an app ecosystem to gain market share, but you need market share in order to entice developers to your platform — Canonical, the creators of the free, open-source Linux-based OS Ubuntu, have taken a novel approach with their new phone, which will be launched in Europe next week: The phone — the Aquaris E4.5 Ubuntu Edition, made with Spanish manufacturers BQ — won't feature apps. Instead, it will have a new user experience paradigm called Scopes. These are "essentially contextual home-screen dashboards that will be much simpler and less time-consuming to develop than full-on native apps." For instance, the music Scope will pull songs from Grooveshark alongside music stored locally on your device, without strong differentiation between the two. The user experience, writes Jay Cassano at Fast Company, seems a lot more intuitive than the "app grids" that dominate most devices.

Read more of this story at Slashdot.








Categories: Linux News

Why It's Important That the New Ubuntu Phone Won't Rely On Apps

Fri, 06/02/2015 - 23:25
tedlistens writes: To tackle the chicken-and-egg problem faced by the Windows Phone or Blackberry — you need an app ecosystem to gain market share, but you need market share in order to entice developers to your platform — Canonical, the creators of the free, open-source Linux-based OS Ubuntu, have taken a novel approach with their new phone, which will be launched in Europe next week: The phone — the Aquaris E4.5 Ubuntu Edition, made with Spanish manufacturers BQ — won't feature apps. Instead, it will have a new user experience paradigm called Scopes. These are "essentially contextual home-screen dashboards that will be much simpler and less time-consuming to develop than full-on native apps." For instance, the music Scope will pull songs from Grooveshark alongside music stored locally on your device, without strong differentiation between the two. The user experience, writes Jay Cassano at Fast Company, seems a lot more intuitive than the "app grids" that dominate most devices.

Read more of this story at Slashdot.








Categories: Linux News

Why It's Important That the New Ubuntu Phone Won't Rely On Apps

Fri, 06/02/2015 - 23:25
tedlistens writes: To tackle the chicken-and-egg problem faced by the Windows Phone or Blackberry — you need an app ecosystem to gain market share, but you need market share in order to entice developers to your platform — Canonical, the creators of the free, open-source Linux-based OS Ubuntu, have taken a novel approach with their new phone, which will be launched in Europe next week: The phone — the Aquaris E4.5 Ubuntu Edition, made with Spanish manufacturers BQ — won't feature apps. Instead, it will have a new user experience paradigm called Scopes. These are "essentially contextual home-screen dashboards that will be much simpler and less time-consuming to develop than full-on native apps." For instance, the music Scope will pull songs from Grooveshark alongside music stored locally on your device, without strong differentiation between the two. The user experience, writes Jay Cassano at Fast Company, seems a lot more intuitive than the "app grids" that dominate most devices.

Read more of this story at Slashdot.








Categories: Linux News

Why It's Important That the New Ubuntu Phone Won't Rely On Apps

Fri, 06/02/2015 - 23:25
tedlistens writes: To tackle the chicken-and-egg problem faced by the Windows Phone or Blackberry — you need an app ecosystem to gain market share, but you need market share in order to entice developers to your platform — Canonical, the creators of the free, open-source Linux-based OS Ubuntu, have taken a novel approach with their new phone, which will be launched in Europe next week: The phone — the Aquaris E4.5 Ubuntu Edition, made with Spanish manufacturers BQ — won't feature apps. Instead, it will have a new user experience paradigm called Scopes. These are "essentially contextual home-screen dashboards that will be much simpler and less time-consuming to develop than full-on native apps." For instance, the music Scope will pull songs from Grooveshark alongside music stored locally on your device, without strong differentiation between the two. The user experience, writes Jay Cassano at Fast Company, seems a lot more intuitive than the "app grids" that dominate most devices.

Read more of this story at Slashdot.








Categories: Linux News

Why It's Important That the New Ubuntu Phone Won't Rely On Apps

Fri, 06/02/2015 - 23:25
tedlistens writes: To tackle the chicken-and-egg problem faced by the Windows Phone or Blackberry — you need an app ecosystem to gain market share, but you need market share in order to entice developers to your platform — Canonical, the creators of the free, open-source Linux-based OS Ubuntu, have taken a novel approach with their new phone, which will be launched in Europe next week: The phone — the Aquaris E4.5 Ubuntu Edition, made with Spanish manufacturers BQ — won't feature apps. Instead, it will have a new user experience paradigm called Scopes. These are "essentially contextual home-screen dashboards that will be much simpler and less time-consuming to develop than full-on native apps." For instance, the music Scope will pull songs from Grooveshark alongside music stored locally on your device, without strong differentiation between the two. The user experience, writes Jay Cassano at Fast Company, seems a lot more intuitive than the "app grids" that dominate most devices.

Read more of this story at Slashdot.








Categories: Linux News

Why It's Important That the New Ubuntu Phone Won't Rely On Apps

Fri, 06/02/2015 - 23:25
tedlistens writes: To tackle the chicken-and-egg problem faced by the Windows Phone or Blackberry — you need an app ecosystem to gain market share, but you need market share in order to entice developers to your platform — Canonical, the creators of the free, open-source Linux-based OS Ubuntu, have taken a novel approach with their new phone, which will be launched in Europe next week: The phone — the Aquaris E4.5 Ubuntu Edition, made with Spanish manufacturers BQ — won't feature apps. Instead, it will have a new user experience paradigm called Scopes. These are "essentially contextual home-screen dashboards that will be much simpler and less time-consuming to develop than full-on native apps." For instance, the music Scope will pull songs from Grooveshark alongside music stored locally on your device, without strong differentiation between the two. The user experience, writes Jay Cassano at Fast Company, seems a lot more intuitive than the "app grids" that dominate most devices.

Read more of this story at Slashdot.








Categories: Linux News

Why It's Important That the New Ubuntu Phone Won't Rely On Apps

Fri, 06/02/2015 - 23:25
tedlistens writes: To tackle the chicken-and-egg problem faced by the Windows Phone or Blackberry — you need an app ecosystem to gain market share, but you need market share in order to entice developers to your platform — Canonical, the creators of the free, open-source Linux-based OS Ubuntu, have taken a novel approach with their new phone, which will be launched in Europe next week: The phone — the Aquaris E4.5 Ubuntu Edition, made with Spanish manufacturers BQ — won't feature apps. Instead, it will have a new user experience paradigm called Scopes. These are "essentially contextual home-screen dashboards that will be much simpler and less time-consuming to develop than full-on native apps." For instance, the music Scope will pull songs from Grooveshark alongside music stored locally on your device, without strong differentiation between the two. The user experience, writes Jay Cassano at Fast Company, seems a lot more intuitive than the "app grids" that dominate most devices.

Read more of this story at Slashdot.








Categories: Linux News

Why It's Important That the New Ubuntu Phone Won't Rely On Apps

Fri, 06/02/2015 - 23:25
tedlistens writes: To tackle the chicken-and-egg problem faced by the Windows Phone or Blackberry — you need an app ecosystem to gain market share, but you need market share in order to entice developers to your platform — Canonical, the creators of the free, open-source Linux-based OS Ubuntu, have taken a novel approach with their new phone, which will be launched in Europe next week: The phone — the Aquaris E4.5 Ubuntu Edition, made with Spanish manufacturers BQ — won't feature apps. Instead, it will have a new user experience paradigm called Scopes. These are "essentially contextual home-screen dashboards that will be much simpler and less time-consuming to develop than full-on native apps." For instance, the music Scope will pull songs from Grooveshark alongside music stored locally on your device, without strong differentiation between the two. The user experience, writes Jay Cassano at Fast Company, seems a lot more intuitive than the "app grids" that dominate most devices.

Read more of this story at Slashdot.








Categories: Linux News

Why It's Important That the New Ubuntu Phone Won't Rely On Apps

Fri, 06/02/2015 - 23:25
tedlistens writes: To tackle the chicken-and-egg problem faced by the Windows Phone or Blackberry — you need an app ecosystem to gain market share, but you need market share in order to entice developers to your platform — Canonical, the creators of the free, open-source Linux-based OS Ubuntu, have taken a novel approach with their new phone, which will be launched in Europe next week: The phone — the Aquaris E4.5 Ubuntu Edition, made with Spanish manufacturers BQ — won't feature apps. Instead, it will have a new user experience paradigm called Scopes. These are "essentially contextual home-screen dashboards that will be much simpler and less time-consuming to develop than full-on native apps." For instance, the music Scope will pull songs from Grooveshark alongside music stored locally on your device, without strong differentiation between the two. The user experience, writes Jay Cassano at Fast Company, seems a lot more intuitive than the "app grids" that dominate most devices.

Read more of this story at Slashdot.








Categories: Linux News

Why It's Important That the New Ubuntu Phone Won't Rely On Apps

Fri, 06/02/2015 - 23:25
tedlistens writes: To tackle the chicken-and-egg problem faced by the Windows Phone or Blackberry — you need an app ecosystem to gain market share, but you need market share in order to entice developers to your platform — Canonical, the creators of the free, open-source Linux-based OS Ubuntu, have taken a novel approach with their new phone, which will be launched in Europe next week: The phone — the Aquaris E4.5 Ubuntu Edition, made with Spanish manufacturers BQ — won't feature apps. Instead, it will have a new user experience paradigm called Scopes. These are "essentially contextual home-screen dashboards that will be much simpler and less time-consuming to develop than full-on native apps." For instance, the music Scope will pull songs from Grooveshark alongside music stored locally on your device, without strong differentiation between the two. The user experience, writes Jay Cassano at Fast Company, seems a lot more intuitive than the "app grids" that dominate most devices.

Read more of this story at Slashdot.








Categories: Linux News

Why It's Important That the New Ubuntu Phone Won't Rely On Apps

Fri, 06/02/2015 - 23:25
tedlistens writes: To tackle the chicken-and-egg problem faced by the Windows Phone or Blackberry — you need an app ecosystem to gain market share, but you need market share in order to entice developers to your platform — Canonical, the creators of the free, open-source Linux-based OS Ubuntu, have taken a novel approach with their new phone, which will be launched in Europe next week: The phone — the Aquaris E4.5 Ubuntu Edition, made with Spanish manufacturers BQ — won't feature apps. Instead, it will have a new user experience paradigm called Scopes. These are "essentially contextual home-screen dashboards that will be much simpler and less time-consuming to develop than full-on native apps." For instance, the music Scope will pull songs from Grooveshark alongside music stored locally on your device, without strong differentiation between the two. The user experience, writes Jay Cassano at Fast Company, seems a lot more intuitive than the "app grids" that dominate most devices.

Read more of this story at Slashdot.








Categories: Linux News