Linux: Should You Use Twice the Amount of Ram as Swap Space?

Posted on in Categories data center, Debian Linux, fedora linux, File system, FreeBSD, Gentoo Linux, kernel, Linux, Linux desktop, Linux laptop, OpenBSD, RedHat/Fedora Linux, Solaris, Storage, Suse Linux, Tuning, Ubuntu Linux, UNIX last updated December 8, 2008

Linux and other Unix-like operating systems use the term “swap” to describe both the act of moving memory pages between RAM and disk, and the region of a disk the pages are stored on. It is common to use a whole partition of a hard disk for swapping. However, with the 2.6 Linux kernel, swap files are just as fast as swap partitions. Now, many admins (both Windows and Linux/UNIX) follow an old rule of thumb that your swap partition should be twice the size of your main system RAM. Let us say I’ve 32GB RAM, should I set swap space to 64 GB? Is 64 GB of swap space really required? How big should your Linux / UNIX swap space be?

Track Stolen Laptop / Mac With Free Open Source Adeona Software

Posted on in Categories Download of the day, GNU/Open source, Links, Linux, Linux laptop, Networking, OS X, Windows, windows vista last updated September 25, 2008

With the growing ubiquity of, and user reliance on, mobile computing devices (laptops, PDAs, smart phones, etc.), loss or theft of a device is increasingly likely, disruptive, and costly. Using Adeona open source software you can track your stolen Mac / PC laptop running Windows or Linux operating system.

Download TrueCrypt Open Source Full Disk Encryption Software

Posted on in Categories CentOS, Data recovery, Download of the day, Gentoo Linux, GNU/Open source, Hardware, Howto, Linux, Linux desktop, Linux laptop, OS X, RedHat/Fedora Linux, Save money with FOSS, Windows, windows vista last updated July 8, 2008

TrueCrypt version 6.0 has been released and available for download. It is free open-source hard disk encryption software for Windows Vista/XP, Mac OS X, and Linux system.

HP 2133 Mini-Notebook PC – Full-function Priced Starting Under $500

Posted on in Categories Hardware, Linux, Linux desktop, Linux laptop, Windows last updated April 8, 2008

To help schools offer affordable computing to every student, HP today introduced a full-function, mini-notebook Linux powered PC priced starting under $500. HP will join a fledgling market already populated with products from Intel Corp., the world’s largest semiconductor company, and Asustek Computers Inc., the world’s largest maker of computer motherboards.

The only way to keep cost is use Linux and create network only computer for everybody. Windows vista cannot be installed because of price tag and higher hardware requirements.

Notebook features

  • Simple, refined design and anodized aluminum shell that is sleek and sturdy yet lightweight;
    HP DuraKeys, featuring a clear coating applied over the notebook keyboard that protects the finish and printed letters and characters;
  • An HP 3D DriveGuard, which sends a signal to shut down the hard drive upon sudden movement or shock by using a three-axis digital accelerometer chip
  • Scratch-resistant display and magnesium hinge bracket
  • A large 8.9-inch diagonal WXGA display, user-friendly full keyboard (QWERTY) and touchpad;
  • Ability to view video, still-image capture, web conferencing or video-enhanced instant messaging with no additional hardware to buy or carry. An optional integrated VGA webcam enables video and still-image capture to allow the addition of photos and video clips to presentations, documents and email;
  • Two battery solutions – three-cell for lightest-weight configurations or optional six-cell for longer battery life;
  • Wireless technologies such as integrated Wi-Fi Certified WLAN(3) and optional Bluetoothâ„¢, allowing students to access the Internet as well as communicate via email, IM, chat, VOIP and blogging. The wireless technologies also enable connections at hotspots as well as with Bluetooth devices such as printers, mice and headsets; and
  • The processors HP is using are made by Via Technologies Inc., the distant third-ranked player in the microprocessor space, and come in clock speeds up to 1.6 gigahertz.

=> More information available here and here.