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ggarron's blog

Nginx vs Apache with APC and Varnish

Filed under
Linux

There are a lot of test and comparisons about Nginx vs Apache. And yes for static content because it is asynchronous, Nginx preforms better. What happens when you have PHP?

I have setup two servers with:

  • Apache + PHP + APC + Varnish
  • Nginx + PHP-FPM + APC + Varnish

Three good and useful Firefox add-ons

Filed under
Linux

One of the great things about Firefox is that the community can contribute to it with add-ons, some of the are really fantastic. There are a lot of them, so much, that is really difficult if not impossible to know all of them, here I present three of them to you.

Eight great Linux stories that made digg front page in 2007

Filed under
Linux

With 2007 ending, it start to appear reviews of the year everywhere, so this is my contribution to that.
I decided to pick up the best (at least for me) Digg front page stories about Linux in 2007

Solving "current dist not found in meta-release" error to upgrade to Gutsy

Filed under
Howtos

If you are getting these errors while upgrading to Gutsy Gibbon.

warning: could not initiate dbus
current dist not found in meta-release

Create a VPN with openVPN complete guide

Filed under
Howtos

Havin security as a constant issue, we all are always thinking in a good way to avoid people getting access to our passwords, and personal information.

Enable Syntax Color on vim

If you want to have you vim coloring your edited files according to its syntax, you can follow this instructions to have them enabled, read at:
Linux operating system

Upgrade Feisty Fawn to Gutsy Gibbon

Filed under
Howtos

You can now upgrade your Feisty Fawn to Gutsy Gibbon, and start testing this new Ubuntu release, How to upgrade from Feisty Fawn to Gutsy Gibbon

The power of Debian and Mandriva together on your PC

If you are a Linux Fan but could not decide which distro is the best for you, try to run two of them in a Dual Boot system, with both Distributions sharing the /home directory so you can have access to your files no matter which distro you boot.

Installing Beryl on Mandriva, really easy with screenshots

Filed under
Howtos

The easy way to install Beryl on the new Mandriva 2007 Spring, this guide with screenshots will show you how easy it is, you will not even need to use any console command.

How (Beryl and Compiz) are helping Linux

Filed under
Linux

Composite project is helping Linux in gaining more users, specially those trying to view the 3D effects using XP (they can't) or Vista (Linux does better with less)
read the post here, at Linux Operating System

Sharing files between Feisty and Windows

Filed under
Howtos

This How To, describe how to configure in a simple way a samba server on your Feisty Fawn, (could be used for other distros) to share files with windows. Samba on Feisty Fawn

backing up your mysql database using your browser -with php-

Filed under
Howtos

Hi,

As I wanted to back up my mysql database on a server where I do not have ssh access only ftp, I made this way to do it, there surely be some better ways, if so I will be glad to know about them, but until that this is working for me.

Backing up your MySQL from web browser using php

Which Distro to choose? - Comparison -(Not a Debian vs Ubuntu vs Fedora vs Centos)

Filed under
Linux

This article compares four of the major distros, from an impartial point of view and try to show some of the facts that make them different, so you can read and choose which better suite your needs.
read it here

Centos 5.0 Released

Filed under
News

CentOS 5.0 the Linux distro based on RedHat has been released, few weeks later RedHat itself has been released.
The news for this version of Centos are among others:

Apache-2.2, kernel-2.6.18, Gnome-2.16, KDE-3.5, Compiz, AIGLX, MySQL-5.0, PostgreSQL-8.1, and much more

It has support for i386 and x86_64 platforms, on its 6 and 7 CDs respectively

Shell Script for Automatically create Apache2 Virtual Servers

Filed under
Howtos

This script permits you to automatically create Apache2, Virtual server, it creates the directory and the configuration files for the virtual server, useful if you need to create a lot of virtual servers, after this you just need to go to the virtual server directory and create the site itself.

read more here

New Ubuntu to be released by October (Gutsy Gibbon)

Filed under
News

Ubuntu 7.10 is going to be called Gutsy Gibbon, and will be release by October this year, today the project was introduced by Mark Shuttleworth, read more at Go2Linux.org

Guided Debian Etch installation (with screenshots)

Filed under
Howtos

The new Debian Etch has been released, here are the installation screenshots, with a step by step guided installation.

Read the complete article of Installing Debian Etch with screenshots

Debian Etch Stable released!!

Filed under
News

This is extracted from the Debian Site, we finally have Etch Stable released!!

Debian GNU/Linux 3.1 updated

Filed under
News

There is a new update for Debian/Sarge, this is security update only, the good new is that reading in lines, we can expect that the final release of Etch is really near, as the sarge is being moved to old stable.
read more

Puppy Linux 2.15 Community Editio released

Filed under
News

The Puppy 2.15CE (Community Edition) is the result of collaboration of a team of Puppy enthusiasts. It is built upon version 2.14 but with many enhancements. In particular the guys have worked on an improved user-interface and nice out-of-the box first impression.

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More in Tux Machines

LWN on Linux: LTS, API, Pointer Leaks and Linux Plumbers Conference (LPC)

  • Cramming features into LTS kernel releases
    While the 4.14 development cycle has not been the busiest ever (12,500 changesets merged as of this writing, slightly more than 4.13 at this stage of the cycle), it has been seen as a rougher experience than its predecessors. There are all kinds of reasons why one cycle might be smoother than another, but it is not unreasonable to wonder whether the fact that 4.14 is a long-term support (LTS) release has affected how this cycle has gone. Indeed, when he released 4.14-rc3, Linus Torvalds complained that this cycle was more painful than most, and suggested that the long-term support status may be a part of the problem. A couple of recent pulls into the mainline highlight the pressures that, increasingly, apply to LTS releases. As was discussed in this article, the 4.14 kernel will include some changes to the kernel timer API aimed at making it more efficient, more like contemporary in-kernel APIs, and easier to harden. While API changes are normally confined to the merge window, this change was pulled into the mainline for the 4.14-rc3 release. The late merge has led to a small amount of grumbling in the community.
  • Improving the kernel timers API
    The kernel's timer interface has been around for a long time, and its API shows it. Beyond a lack of conformance with current in-kernel interface patterns, the timer API is not as efficient as it could be and stands in the way of ongoing kernel-hardening efforts. A late addition to the 4.14 kernel paves the way toward a wholesale change of this API to address these problems.
  • What's the best way to prevent kernel pointer leaks?
    An attacker who seeks to compromise a running kernel by overwriting kernel data structures or forcing a jump to specific kernel code must, in either case, have some idea of where the target objects are in memory. Techniques like kernel address-space layout randomization have been created in the hope of denying that knowledge, but that effort is wasted if the kernel leaks information about where it has been placed in memory. Developers have been plugging pointer leaks for years but, as a recent discussion shows, there is still some disagreement over the best way to prevent attackers from learning about the kernel's address-space layout. There are a number of ways for a kernel pointer value to find its way out to user space, but the most common path by far is the printk() function. There are on the order of 50,000 printk() calls in the kernel, any of which might include the value of a kernel pointer. Other places in the kernel use the underlying vsprintf() mechanism to format data for virtual files; they, too, often leak pointer values. A blanket ban on printing pointer values could solve this problem — if it could be properly enforced — but it would also prevent printing such values when they are really needed. Debugging kernel problems is one obvious use case for printing pointers, but there are others.
  • Continuous-integration testing for Intel graphics
    Two separate talks, at two different venues, give us a look into the kinds of testing that the Intel graphics team is doing. Daniel Vetter had a short presentation as part of the Testing and Fuzzing microconference at the Linux Plumbers Conference (LPC). His colleague, Martin Peres, gave a somewhat longer talk, complete with demos, at the X.Org Developers Conference (XDC). The picture they paint is a pleasing one: there is lots of testing going on there. But there are problems as well; that amount of testing runs afoul of bugs elsewhere in the kernel, which makes the job harder. Developing for upstream requires good testing, Peres said. If the development team is not doing that, features that land in the upstream kernel will be broken, which is not desirable. Using continuous-integration (CI) along with pre-merge testing allows the person making a change to make sure they did not break anything else in the process of landing their feature. That scales better as the number of developers grows and it allows developers to concentrate on feature development, rather than bug fixing when someone else finds the problem. It also promotes a better understanding of the code base; developers learn more "by breaking stuff", which lets them see the connections and dependencies between different parts of the code.

An update on GnuPG

The GNU Privacy Guard (GnuPG) is one of the fundamental tools that allows a distributed group to have trust in its communications. Werner Koch, lead developer of GnuPG, spoke about it at Kernel Recipes: what's in the new 2.2 version, when older versions will reach their end of life, and how development will proceed going forward. He also spoke at some length on the issue of best-practice key management and how GnuPG is evolving to assist. It is less than three years since attention was focused on the perilous position of GnuPG; because of systematic failure of the community to fund its development, Koch was considering packing it all in. The Snowden revelations persuaded him to keep going a little longer, then in the wake of Heartbleed there was a resurgent interest in funding the things we all rely on. Heartbleed led to the founding of the Core Infrastructure Initiative (CII). A grant from CII joined commitments from several companies and other organizations and an upsurge in community funding has put GnuPG on a more secure footing going forward. Read more

Ubuntu: GNOME, New Video, Ubuntu Podcast, Refreshing the Xubuntu Logo

  • Ubuntu 17.10: We're coming GNOME! Plenty that's Artful in Aardvark, with a few Wayland wails
    Ubuntu has done a good job of integrating a few plugins that improve GNOME's user experience compared to stock GNOME – most notably a modified version of the Dash-to-Dock and the App Indicator extensions, which go a long way toward making GNOME a bit more like Unity. It's worth noting that Ubuntu's fork of Dash-to-Dock lacks some features of the original, but you can uninstall the Ubuntu version in favour of the original if you prefer. In fact you can really revert to a pretty stock GNOME desktop with just a few tweaks. Canonical said it wasn't going to heavily modify GNOME and indeed it hasn't.
  • What’s New in Ubuntu 17.10 Artful Aardvark
  • Ubuntu Podcast: S10E33 – Aggressive Judicious Frame
    This week we’ve been protecting our privacy with LineageOS and playing Rust. Telegram get fined, your cloud is being used to mine BitCoin, Google announces a new privacy focused product tier, North Korea hacks a UK TV studio, a new fully branded attack vector is unveiled and Purism reach their funding goal for the Librem 5.
  • Refreshing the Xubuntu logo
    Earlier this year I worked a bit with our logo to propose a small change to it – first change to the logo in 5 years. The team approved, but for various reasons the new logo did not make it to 17.10. Now we’re ready to push it out to the world.

Intel Linux and GCC Work

  • Intel Begins Landing GFNI Support In GCC 8
    Intel compiler engineers have begun landing "GFNI" support within the GNU Compiler Collection as one of the new ISA extensions not expected until the Icelake processor debut.
  • Control-Flow Enforcement Technology Begins To Land In GCC 8
    Intel Control-flow Enforcement Technology (CET) support has begun landing within the GNU Compiler Collection (GCC) for this code safety feature. Patches have been in the works for several months while now the start of the patches are being merged to mainline. Coincidentally, at the same time Intel is also landing their GFNI instruction patches in GCC as well.
  • Intel Continues Landing New i915 DRM Features For Linux 4.15
    Jani Nikula has sent in another drm-intel-next update for David Airlie's DRM-Next tree. They continue prepping more updates to their Direct Rendering Manager (DRM) for targeting the upcoming Linux 4.15 cycle. There have already been several Intel "i915" DRM driver updates queued in DRM-Next for this new kernel version. Past pulls have included marking Coffeelake graphics as stable, continued Cannonlake "Gen 10" graphics enablement, various display improvements, and quite a lot of other low-level code improvements.