Content-Length: 112390 | pFad | http://web.archive.org/web/20090422094703/http://www.linuxjournal.com:80/

Linux Journal | The Original Magazine of the Linux Community
The Wayback Machine - http://web.archive.org/web/20090422094703/http://www.linuxjournal.com:80/

HOW-TOs

Although rarely used, the bash declare statement does have a couple useful options. It can mark a variable as read only and also mark it as being a number only.

SOCKS is built in to OpenSSH, so it's a trivial matter to set up a local SOCKS proxy with the -D flag. For example:

When looking at log files or other files that are compressed and rotated automatically, it's useful to be able to deal with them in a uniform fashion. The following bash function does that:

I like to open a lot of tabs in my terminal (konsole) window: a few standard shells, a couple of su shells, and some ssh connections to other systems that I access regularly. KDE can remember some of these settings via its session capability, but it doesn't always remember everything I want, and sometimes it remembers things I wish it would forget. So, to get my standard tabs, I use DCOP to start what I want when I want it.

Poll

Product Review

Presentation software isn't complicated compared to a word processor or spreadsheet. It doesn't need to be. Maybe that's why OpenOffice.org's Impress offers a variety of views of your work.

More From LinuxJournal.com

Last year at LinuxWorld Expo, I had the opportunity to speak with Cliff Schmidt, the Executive Director at Literacy Bridge. At that point, Cliff was showing off an audio recording device with the eventual plan of being able to distribute sub-$10 gadgets that would allow for education and collaboration in struggling third-world countries.

Many of you probably are familiar with the Roku media streaming device. In a partnership with Netflix, the Roku is one of several officially supported devices for streaming the large collection of Netflix's available movies and television shows.

I was pricing a low-end desktop computer the other day. When configuring it, I noticed that if I added a four-year warranty, it would cost more than the entire system! We've really come to the point where computer hardware is like a plastic fork. If a tine breaks off, it gets thrown away. Sadly, although throwing away plastic forks is rough on the environment, used computers are so much more so.

Thank you for your interest, the Linux Journal's gaming survey is now closed. Drawing winners will be notified by the end of the day on Thursday, April 16.

Freescale

March 26th, 2009 by Doc Searls

Freescale may be the first semiconductor company to associate itself aggressively with portable Linux devices. The former Motorola semiconductor division is sharply targeting the low-priced Linux-based Netbook market, which is hot in the world market and just starting to get warm in the US.

This week, I present two Studio Dave mainstays, the 64 Studio media-optimized Linux distribution and the Ardour digital audio workstation (DAW), both of which are in the late stages of development toward milestone releases. I invite my readers to take a look at what's coming our way in 64 Studio 3.0 and Ardour3.

Blogs and Opinion

So Oracle bought Sun. Aside from the usual vendor sports stories (IBM lost this one), what's the deal here for Linux and other open source fixtures in both Sun's and Oracle's portfolios? What happens to MySQL? What happens to Java? How about Solaris? You tell us.

Pirate Bay 4 guilty

April 17th, 2009 by David Lane

Today, the ringleaders of the Pirate Bay BitTorrent tracking site were found guilty and sentenced to one year in jail and fines of upwards of $3 million US (ComputerWorld).

In a world where distinctions between open source and proprietary software are becoming increasingly irrelevant, what role can IP [Intellectual Property] play in facilitating greater collaboration with the industry for the benefit of business and customers alike? (167)

Sharing lies at the heart of free software, and drives much of its incredible efficiency as a development methodology. It means that coders do not have to re-invent the wheel, but can borrow from pre-existing programs. Software patents, despite their name, are about locking down knowledge so that it cannot be shared without permission (and usually payment). But are there ever circumstances when software patents that require payment might be permitted by an open source licence? That's the question posed by a new licence that is being submitted to the Open Source Inititative (OSI) for review.

I wanted to briefly follow up the discussion about blurring on-line maps.

I am currently reading a very enlightening book entitled Blank Spots on the Map: The Dark Geography of the Pentagon's Secret World.

Conficker seems to be the theme of the week. So, with the crisis abated for the moment, I thought this would be a good opportunity to discuss an issue near and dear to my heart – patch management.

The Need for Speed

April 3rd, 2009 by Doc Searls

I never liked the terms "upload" and "download". I think "inload" and "outload" might be better, just because they don't carry implications of subordination or unequal required effort.

As it happens most of our home connections are asymmetrical: much higher coming in than going out.

As Linux sysadmins, many of us still need to deal with Windows worms and how they affect our networks. Tomorrow is April 1st, and the Conficker worm will be activating on vulnerable computers everywhere. Here's a quick HOW-TO showing how you can detect compromised and/or vulnerable computers on your network:

What was Richard Stallman's greatest achievement? Some might say it's Emacs, one of the most powerful and adaptable pieces of software ever written. Others might plump for gcc, an indispensable tool used by probably millions of hackers to write yet more free software. And then there is the entire GNU project, astonishing in its ambition to create a Unix-like operating system from scratch. But for me, his single most important hack was the creation of the GNU General Public Licence.

IPv6 - Survey Says...!

March 23rd, 2009 by David Lane

A new survey out from the Internet Society (ISOC) and reported by Network World would have you believe there is no business case for the move to IPv6.


Newsletter

Each week Linux Journal editors will tell you what's hot in the world of Linux. You will receive late breaking news, technical tips and tricks, and links to in-depth stories featured on www.linuxjournal.com.
Sign up for our Email Newsletter

Tech Tip Videos

From the Magazine

May 2009, #181

We don't own the desktop yet but we do own the first ever Nobel Prize in Cool. Cool Projects that is, we've got a Linux powered rocket and a Linux powered submarine. Plus we show you how to use the iRobot Create with Linux, how to convert those old 8mm movies to DVD with Linux, and how to control your house with Linux and Mi Casa Verde.

After checking out the cool projects don't miss the rest of this cool issue and read how to run Rails under Apache using Phusion Passenger, how to build a secure Squid Web Proxy, how to use OpenFiler to create an open-source network storage appliance, and if just typed "rm -rf /" find out what to do and what not to do in our continuing series of "When Disaster Strikes" articles. And don't miss our interview with Neuros CEO Joe Born or Doc's monthly words of wisdom.

Read this issue









ApplySandwichStrip

pFad - (p)hone/(F)rame/(a)nonymizer/(d)eclutterfier!      Saves Data!


--- a PPN by Garber Painting Akron. With Image Size Reduction included!

Fetched URL: http://web.archive.org/web/20090422094703/http://www.linuxjournal.com:80/

Alternative Proxies:

Alternative Proxy

pFad Proxy

pFad v3 Proxy

pFad v4 Proxy