Linux Journal Contents #175, November 2008
There aren't many numbers that put the US national debt to shame, but here's one: 1,100,000,000,000,000. What's that? That's how many floating-point operations per second the Roadrunner supercomputer at Las Alamos can perform. That's about 100 FLOPS per dollar of US debt (unfortunately, the debt is winning the second derivative race). Read the article about Roadrunner in this month's High Performance Computing issue of LJ. Along with that, find out how to program the Cell processor and how to use CUDA with your NVIDIA GPU. Also in this issue: Mr HandS (aka Kyle Rankin) gives us a few tips on using Compiz, Chef Marcel shows you how to get blogging off your plate quicker, Mick Bauer talks about Samba security, Dan Sawyer interviews Cory Doctrow and Doc talks about how information technology can affect democracy and fix the national debt (just kidding about that last part). That and more for your reading pleasure in this month's Linux Journal.
The Roadrunner Supercomputer: a Petaflop's No Problem
by James Gray
IBM and Los Alamos National Lab teamed up to build the world's fastest supercomputer.
Massively Parallel Linux Laptops, Workstations and Clusters with CUDA
by Robert Farber
Unleash the GPU within!
Increase Performance, Reliability and Capacity with Software RAID
by Will Reese
Put those extra hard drives to work.
Overcoming the Challenges of Developing Applications for the Cell Processor
by Chris Gottbrath
Introducing techniques for troubleshooting programs written for the Cell processor.
Cory Doctorow—Linux Guru?
by Dan Sawyer
Cory Doctorow on DRM, his new novel and more.
How We Should Program GPGPUs
by Michael Wolfe
Porting to GPUs without heroic programming effort.
Use Python for Scientific Computing
by Joey Bernard
Leverage the benefits of Python for scientific computing.
Shawn Powers' Current_Issue.tar.gz
Sometimes, Fast Just Isn't Enough
Reuven M. Lerner's At the Forge
Marcel Gagné's Cooking with Linux
Dave Taylor's Work the Shell
Pushing Your Message Out to Twitter
Mick Bauer's Paranoid Penguin
Samba Security, Part I
by Mick Bauer
Kyle Rankin's Hack and /
Memories of the Way Windows Were
Doc Searls' EOF
Lincoln and Whitman's Unfinished Business
Tracking Your Business Finances with NolaPro
by Mike Diehl
The Popcorn Hour A-100
by Daniel Bartholomew
In Every Issue
Fast/Flexible Linux OS Recovery
On Demand Now
In this live one-hour webinar, learn how to enhance your existing backup strategies for complete disaster recovery preparedness using Storix System Backup Administrator (SBAdmin), a highly flexible full-system recovery solution for UNIX and Linux systems.
Join Linux Journal's Shawn Powers and David Huffman, President/CEO, Storix, Inc.
Free to Linux Journal readers.Register Now!
- Firefox 46.0 Released
- Ubuntu Online Summit
- Devuan Beta Release
- The Qt Company's Qt Start-Up
- May 2016 Issue of Linux Journal
- The US Government and Open-Source Software
- The Death of RoboVM
- Open-Source Project Secretly Funded by CIA
- Download "Linux Management with Red Hat Satellite: Measuring Business Impact and ROI"
- New Container Image Standard Promises More Portable Apps
In modern computer systems, privacy and security are mandatory. However, connections from the outside over public networks automatically imply risks. One easily available solution to avoid eavesdroppers’ attempts is SSH. But, its wide adoption during the past 21 years has made it a target for attackers, so hardening your system properly is a must.
Additionally, in highly regulated markets, you must comply with specific operational requirements, proving that you conform to standards and even that you have included new mandatory authentication methods, such as two-factor authentication. In this ebook, I discuss SSH and how to configure and manage it to guarantee that your network is safe, your data is secure and that you comply with relevant regulations.Get the Guide