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2.4.36-pre1, Preventing NULL Dereferences

"I've just released Linux 2.4.36-pre1," announced 2.4 maintainer Willy Tarreau. He described a new feature found in the first pre-release: "In private discussions, Solar Designer proposed to restrict the ability to map the NULL address to CAP_RAW_IO capable processes only. The idea behind this was to prevent 'normal' users from trying to exploit NULL dereferences in the kernel which have not been discovered yet. This is purely a preventive measure."

Paterva Evolution is dead, long live Maltego

As noted in the update to our review of Paterva Evolution, a personal data mining tool, Roelof Temmingh has removed the binaries for the application after having received legal threats over its use. In an email on the Paterva announcement's mailing list over the weekend, Temmingh revealed more about why the binaries had to be removed and unveiled his plans for future work on the project.

Dynamic Data Structure Switching

Nick Piggin posted an efficient algorithm for converting a data structure, "this is my 'data structure switch' algorithm that can convert one data structure into another, with just a single unlikely branch in fastpaths and no locking or atomic operations (the branch is only triggered when the data structure is in the process of being converted). A pointer indirection is generally also needed when converting a global data structure."

RISC OS Look and Feel on Linux project ready to go live

Ever wanted to run RISC OS apps on a Linux powered PC? Simon Willcocks has, and he's done something about it.

NVIDIA: Got Specifications?

This past week AMD raised the Linux graphics bar by not only announcing their new fglrx graphics driver, which delivers Radeon HD 2000 support, immense performance improvements, and AIGLX, but it was accompanied by an announcement that they will be delivering specifications to the X.Org development community. These two announcements came after intense work internally at AMD and over a long period of time, but literally overnight it changed the minds of many Linux users on how they judge this company with its once notorious binary blob.

Printing Secrets revealed: Grok some Basics about 'PPDs'...

  •; By pipitas (Posted by pipitas on Sep 9, 2007 7:42 PM EDT)
  • Story Type: Tutorial; Groups: Community
Adobe developed, specified and published the exact format of PPD files, starting more than 20 years ago. Ever since, PPD files have been used on Apple Macs and Windows PCs (and a few other platforms) to describe and drive PostScript printers. CUPS extended the concept of PPD files to non-PostScript printers as well (because CUPS uses a computer-based PostScript interpreter, and it can direct each job through a conversion filter to create a jobfile with a format feasible for the target printer). A CUPS printer named foobaz has its own model-specific print options represented in the file foobaz.ppd that lives in /etc/cups/ppd/. You can of course look at it in an editor.

Ubuntu Linux + Apache2 + Virtual Hosts + Syslog Server

Central Log Management System is a simple web based logging system which allows logging all syslog messages from various Network Devices, Unix, Linux, Solaris and Windows Servers. This allows the visibility of logs from all these devices in one single interface.

KDE team updates release plans for 4.0

The long-awaited KDE 4.0 desktop environment will be available to users in December but a development platform version will be released on October 30 to give third party developers time to port their applications to the new platform.

Lenovo opening the door for Ubuntu ThinkPads?

Lenovo finally started shipping SUSE Linux Enterprise Desktop on its T-Series ThinkPads for its mainstream business users. Now, the company appears to be considering offering another Linux, very possibly Ubuntu, for the enthusiast market.

Howto Boot debian in text mode instead of graphical mode (GUI)

Howto Boot debian in text mode instead of graphical mode (GUI)

LXer Weekly Roundup for 09-Sept-2007

LXer Feature: 09-Sept-2007

The big stories this week include Microsoft and the ISO vote saga, the countdown is on to Ontario Linux Fest, The French Ministry for Education has migrated 2,500 servers over to Linux and The Women of Tech. All this and more in the LXer Weekly Roundup.

Jack Write Linux, Jack Go Bankrupt...

It seems that we are watching a project being eaten alive...and some of us are ambling over and stabbing a fork full for ourselves and wandering away without so much as a thank you or a glance back. But isn't that the way of the internet? If it's free, just take it and move on in search of the next freebie...right? It's not long before that freebie isn't there any longer...but hey...we got ours while it was there...right? Screw those too slow or too late.

GCompris 8.4 Released Under GPLv3, Help Needed For 8.5 Release

GCompris, an official GNU Project providing educational software for children aged 2-10 years, announced the release of version 8.4 today. Changes include upgrading to the GPLv3, as well as major structural changes. And lead developer, Bruno Coudoin, says the project could use some help.

Getting started with Smoothwall Express 3.0

  •; By Frank Neugebauer (Posted by fneagle on Sep 9, 2007 12:30 PM EDT)
  • Story Type: Tutorial
Smoothwall Express is an internet firewall, which allows you to protect your network, as well as providing NAT functionality. It is ease to use and configurable via a web-based GUI. This open source firewall distribution requires absolutely no knowledge of Linux to install or use. This workshop shows the installation and basic configuration of the current release Smoothwall Express 3.0.


Linux powered TreCorder speeds up data collection at crime scenes

A new SuSE Linux powered forensic computer from a UK based company promises to make the task of gathering evidence at the scene of a crime much easier.

Chrooted SSH/SFTP Tutorial (Debian Etch)

  • HowtoForge; By Falko Timme (Posted by falko on Sep 9, 2007 9:54 AM EDT)
  • Story Type: Tutorial; Groups: Debian
This tutorial describes two ways how to give users chrooted SSH access. With this setup, you can give your users shell access without having to fear that they can see your whole system. Your users will be jailed in a specific directory which they will not be able to break out of. The users will also be able to use SFTP in their chroot jails.

Comparing Debian and Fedora

Debian and SELinux developer Russell Coker did a nice comparison of Debian and Fedora. I’m often asked about that, even from companies, so if you need this to compare the different versions of Debian (from stable to unstable) with Fedora or RHEL or even CentOS, go ahead and read it.

Slackware: There's something totally sane about it

While it's not as easy as apt-get update, apt-get upgrade in Debian/Ubuntu (or the Update Manager), there's something very sane about maintaining a Slackware box. For one thing, you know way more about what goes into it. One thing with Slackware -- it pays to read. Read the documentation, keep up with blogs and Web sites that write about Slack.

Build Cross-Platform Graphics with Cairo on Linux

  • IBM/developerWorks; By Eli M. Dow (Posted by IdaAshley on Sep 9, 2007 5:02 AM EDT)
  • Groups: Linux
Built from the ground up to create identical output on both printer and screen—all in a cross-platform way—cairo is becoming a huge player in the Linux graphics space, as well as BSDs, Windows, and OSX platforms. Learn about cairo, a free software vector drawing library that can draw to multiple output formats.

ReviewLinux.Com: Sabayon Linux 3.4f Not just a pretty face.

This is our first look at Sabayon Linux 3.4f. This distro has an excellent KDE desktop and we have produced a small flash video to see Sabayon Linux 3.4f in action

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