Our Latest Discovery - A WhatIs.com blog

Our Latest Discovery:

 

A WhatIs.com blog


Discover great Web sites, videos, photos, information technology (IT) definitions, blogs, tutorials, cheat sheets and learn about Internet culture in general at this blog.

Screencast: Learn how to watch video on Ubuntu

This screencast from Ubuntu.com shows how to play media, like online movies and DVDs, in Hardy Heron and other versions of the Linux operating system.

Learn how to add codecs automatically, play video embedded in a browser and how to install a Flash Player plugin or the Miro video platform.

Video: Richard Stallman talks about the importance of free software, GNU, copyleft and open sourcing

In these videos, Robin Good interviews Richard Stallman about free software and the open source movement. Stallman created the GPL and the Free Software Foundation to protect the GNU operating system from becoming proprietary.

In the sequence embedded below, filmed, the founding father of open source software answers a series of questions. This interview was originally posted at MasterNewMedia.org in 2006 and features commentary and links from Robin Good.

Q: What is free software?

Q: What are the negative consequences of using proprietary software instead of free software?

Q: What free software do you recommend using?

Q: Can individuals and organizations use GNU/Linux in their daily operations?


Q: What can individuals do to support the open source movement?

Wireshark helps you to determine if your ISP is throttling traffic

Download Squad to the rescue! The popular and useful downloads blog from Weblogs Inc. posted about a utility that can help you monitor your own network.

Wireshark is a free network protocol analyzer that’s available for Windows, Mac OS X, Linux, Solaris, FreeBSD and many others. Download Wireshark here.

Wireshark is long since well-known to networking professionals, perhaps under its previous name, “Ethereal.”

In fact, our colleague Sue Fogarty posted about SHARKFEST over at The Network Hub, an event about protocol analysis specifically for developers and users of Wireshark.

Sue says that Vint Cerf wowed ‘em at SHARKFEST. No shock there — the “father of the Internet” is well-known for that sort of thing.

In his post on Download Squad, Ian Dumych also links to a white paper posted by the Electronic Frontier Foundation, Detecting packet injection: a guide to observing packet spoofing by ISPs. Check in there if you want to learn more about the practice and how monitoring your own connection can help others.

Vector Magic: A great webapp for precision bitmap to vector art conversion

Are you thinking ahead to making gifts for the holidays? I certainly am; once the Thanksgiving holiday is on the immediate horizon, my internal clock starts ringing madly. Less than a month until the gift exchanges begin?!

{angst}

Fortunately, a friendly colleague forwarded me a rather useful tool: Vector Magic. If you, like me, love to make your own gifts, including digital imagery, this tool will excite you as well.

Here’s a quick and clean summary. Vector Magic converts bit map images to vector graphics.

Why is this cool? Because a bit map uses a fixed or raster graphics method of specifying an image, the image cannot be immediately rescaled by a user without losing definition. A vector graphics graphic image, however, is designed to be quickly rescaled.

Instead of using commercial software, you can just upload your image to Vector Magic (essentially, a stanford.edu server) and they’ll vectorize it for you.

Here’s their example of the difference:

bitmap to vector conversion

In other words, you can scale an image without making it blurry or pixelated. Savvy? Happy gift making!

Here’s a video that demonstrates how you how Vector Magic works:

Check out this FAQ for more info. Vector Magic supports the JPG, GIF, PNG, BMP and TIFF image formats as inputs and outputs them as EPS, SVG or PNGs.

Andrew Sellick’s 100 terrific open source or freeware apps for web developers

Say what you will about link bait — this list of freeware and open source Web development applications from Andrew Sellick is a great resource if you’re in the business (or even hobby) of building Web sites and don’t have the budget for Adobe’s creative suite. While some resources are likely to be familiar to many, like Eclipse or the IE Toolbar, if you work in the creation or maintenance of online content, it’s a sure bet you’ll discover something new and worthwhile in Andrew’s list.

Thanks to Andrew for all of his hard work researching and pulling them together — and to the delicious community, as always, for highlighting the achievement by collectively bookmarking it to the top.

What are the 45 best freeware design programs?

snap2objects.com knows. In fact, Mauricio Duque’s list of the 45 best freeware design programs is just the thing to help you or any (cheap) relatives with image editing, desktop publishing or Web design.

The Colombian graphic designer affectionately known as “Mao” took a break from working towards his master’s in information systems design to go through thousands and thousands of applications and bring us his list of the best of the best. As he says, none of them will replace Photoshop, Flash, InDesign, Quark or other professional applications, but the price is right!

I’ve loved GIMP for a while, but, I have to admit, most of these were new to me. Thanks, Mao!

Picnik: Free web-based photo editing in real-time

Up until the wonderful moment that my camera was exposed to the wonders of North Atlantic wave action a few weeks ago, I’d enjoyed over half a decade of great digital pictures from my little Coolpix. (For some of my lessons learned, listen to this podcast). Taking pictures, however, was really always just the start of the process of importing, editing, optimizing and uploading them to the Web. While I’ve been using iPhoto and Photoshop for years for that purpose, lately I’ve been using so many different machines and platforms that neither has been as convenient as I might wish.

Last week, however, a friend pointed me to Picnik, which offers a level of functionality and ease that lies somewhere around iPhoto… except that it’s a free Web-based application!

Amazing. It’s a cinch to take a photo from around the Web or one that you’ve uploaded, resize it, flip it, crop it, use the red-eye reduction and even apply some advanced filters and effects.

There are some caveats. First, Picnik is currently in beta, so some of the more advanced functions won’t be free forever.

Second, you’ll need a relatively new PC (from the past few years) and a speedy Internet connection to make use of the application (mimimum 1 Ghz processor and 256 MB of RAM) . The Picnic FAQ also recommends at least Firefox 1.0 or Internet Explorer 5.0, which brought a huge grin to my face… if you haven’t upgraded your browser beyond those two, it may be time! Picnik is also Flash-based, so you’ll need to download and install the player to use it.

There are also other nifty features that Picnik offers. For one, you can pull a picture directly from your hard drive into the application for editing. For another, it’s easy to do the same with the major online photo sharing sites like Flickr or even from MySpace, assuming you’ve been brave enough to post pictures there. Flickr users will especially enjoy the ability to choose to overwrite the original image with an edited version. If you allow Picnik to access your account, you can also add a new photo, as I did for the picture of the waterfall seen on the left.

Sharing photos right from Picnik is easy as well; just edit and click share to email them or send a link.

It’s rare to find free applications that offer such a smooth, well-conceived user experience, combined with a functionality that’s genuinely useful. In a few short years, it seems like we’ve all become photographers. Picnik, ideally, will help take the pain out of the process that takes place after you capture the image.

[Editor’s Note: Both photos on this post were edited with the application. One is a bridge in Acadia in Maine, the other a waterfall in Oregon. If you have shots you’d like to share of your own travels and online edits, please feel free to link to them in the comments. Cheers!]

uMouse: Control your computer using gestures and a webcam, not a mouse

This past weekend’s iPhone launch has introduced hundreds of thousands of users to a new paradigm for mobile computing interfaces, multi-touch. While only time will show if an small, touchscreen keyboard will be a pleasant and productive experience, there are any number of other companies and researchers experimenting with different ways of controlling our digital devices. I’ve been using a Kensington Orbit for years, for instance, a USB trackball that has proven tough, easy to use and helpful for scrolling and editing long lines of code. Earlier this year, I invested in a Logitech MX Revolution, easily the best wireless mouse I’ve ever experienced. I can’t emphasize how much I love the hyperscroll wheel, forward/backward buttons right where my thumb rests or programmable buttons.

This afternoon, however, I found a new and downright fun new way of moving the cursor around the screen. Sadly, the brain-computer interface (BCI) that DARPA is developing isn’t quite ready for prime time, so don’t get too excited — yet. Instead, programmer Larry Lart has created uMouse, a free Windows application that, in concert a USB webcam, allows the user to control the cursor and left- or right-click using head movements or hand gestures. While the real-time visual tracking the program uses to translate movement into directives is a bit processor intensive, anyone who presents often or needs to have more flexibility in where and how they interact with a laptop or workstation now has another option with undeniable geek appeal.

Nice work, Larry! Now, to decide what I want my PC to do when I smile. :)

Sneakernets, removable storage and hassle-free file transfer methods

One of WhatIs.com’s faithful readers wrote in recently with a suggestion for a much-beloved IT sniglets page (go take a look if you think words like CrackBerry, AlzIMers, IMglish or prairiedogged are a hoot): sneakernet. We love that sort of thing, of course (write to us!) but in this case we already had a definition for sneakernet: a method of transmitting electronic information by personally carrying it
from one place to another on floppy disk or other removable medium. The concepts certainly doesn’t seem many years removed from the days of copying working files onto a 3.5″ floppy disc at the end of the day in the computer room — or even of writing simple algorithms to the cassette tapes attached to the ancient PET computers next to my classroom in the late 80s.

As is so often the case, technology and life comes in cycles. In recent years, the explosion of cheap, removable flash drives (or jump drives, so some folks call them) has allowed mind-bogglingly large sneaker-borne file transfers copied over speedy USB 2.0 ports. iPod owners have long since discovered that those giganormous 80-gigabyte hard drives also make fantastic data warehouses for easy travel and transfer (as long as you don’t forget the cord!) and of course, it’s a cinch for most PC owners to burn a copy of a file to a CD and walk it over to another desk or office. That sort of thing can result in podslurping, of course, as network admins know. Entire operating systems can be carted around as LiveDistros, along with whatever portable applications a user might desire. I won’t even touch, of course, the multitude of flash memory formats that inhabit cameras, smartphones, GPS devices and other electronica, each a potential method of data transfer in “the sneakernet.”

(BTW, hat tip for the cool sneaker image goes to ProZak on Flickr)

So sneakernet is definitely not dead (as noted in this tip from SearchNetworking from 2005). The prompt provided by the reader email did, however, recall to my biological RAM an e-column I read just last week from David Pogue, the witty and frequently funny technology reviewer over at the New York Times. David recently wrote about a trip to California where he managed to forget a folder of 2 GB of digital photos he’d taken of digital SLRs he was reviewing in that week’s paper. With the help of a marvelously patient wife, he managed to get the files transferred over to his laptop from home using a nifty little shareware application called Pando. Pando provides, as David says, “a free, cross-platform, super-simple program designed expressly for idiotproof file transfers, even big ones.”

You can learn more at (you guessed it) Pando.com.

The only snag is that for the service to work, both users have to download and install the client, a step and hitch that David rightly suggests is a potential hindrance, or even impossible for some end users without admin privileges. That being said, Pando worked well for David and is allowing thousands of users to easily backup, transfer, recover and (yes) trade quite large media files. Color me a fan.

Aside from discovering Pando (thanks, David!), the process Pogue worked through is remarkably similar to one that plays out in classrooms and cubicles daily. How to do it? Sneakernet and removable storage is certainly one way, though I hear that the “Interwebs” is an attractive method these days as well. Here’s a crack at a list of ways to make a hypothetical transfer happen. If you have more ideas, please add them in the comments.

For instance, gmail has changed the way that most people think about using email to send attachments, with its remarkably large capacity (convertible to online storage, as I’ve blogged about before, with Gdisk), though I agree with David that 2 gigs is a tag weighty to send this way.

Also like David, I’ve been using FTP for a long time to download and upload files online, though I’ve endured timeouts, unexpected logouts and all manner of file corruptions over the years. I still have fond memories of the early versions of Fetch, including the happy dog icon that accompanied the app. David’s second idea, using an IM-client to transfer files, wasn’t a bad idea at all, though that kind of P2P file sharing isn’t likely to fly on many corporate networks.

As David discovered, however, IM and large files size don’t mix well for file transfer.

Command line geeks know about how to use Secure Shell (referred to as SSH or secsh) to securely access a computer remotely, a method that isn’t exactly for the technically faint of heart but allows direct access to the other computer’s directories. Rajpaul Bagga offers a Secure Shell (SSH) howto if you’re interested.

How else can you transfer large files? The list isn’t short, to be sure, even after touching on CDs, iPods, flash drives, P2P file sharing apps, FTP clients, iPods and IM.

.Mac users can also set up a public folder on their iDisks, which allows them to post large files for others to download, securing them behind password-protection as necessary.

Networking geeks can directly connect one PC to another with a crossover cable. And, as many will point out, a server or shared hard drive can be set up for file sharing as well.

You can use the IrDa port on your PDA and laptop (if they both have one!) to swap files using infrared.

And (of course) Bluetooth can be enabled to allow easy transfer between PCs, PDAs and printers, though bluesnarfing should worry users with proprietary or sensitive data.

Some smartphone users can use MMS to send files as well, most often pictures or (very short) videos taken with digital cameras. Unless you’re on an EV-DO, HSDPA or some other 3G wireless network, however, this won’t work particularly well with larger files.

Did I miss anything? Let me know in the comments!

FireGPG: Encrypt, decrypt, sign and verify your gmail

I’ve been using different online freemail ever since I left the comfort of my collegiate email account. Hotmail and Yahoo were the default options back in the mid-90s when I graduated and, for many years, despite the increasing spam, I stuck with them.

When .Mac was introduced in 2002, being a long-time Apple user, I jumped on that bandwagon. I have to admit, however, that even with Apple’s update of the Web-based email client to a richer, AJAX-heavy interface, gmail is now my clear preference. The fact that it’s free and has a much higher storage limit are almost besides the point; I can access gmail on the go and it doesn’t constantly time out, not to mention the seamless integration of gchat with other gmail users.

It’s quite possible, even likely, that Steve Jobs & Co. will update .Mac, including email, when the iPhone is released at the end of the month. I’ll be keeping my eyes peeled. Recent reports of a dangerous hole in Google Desktop, along with the constant flow of spam and the malware occasionally associated with it, have kept me looking for better way to secure my online messaging, especially when I exchange email with someone who desires a digital signature or encrypted email.

Enter FireGPG. Thanks to popurls, which I love to use to get a snapshot of the Web’s “hive mind” at any given time, I found this great Firefox extension that allows you to encrypt, decrypt, sign and verify your gmail. Just head over to firegpg.tuxfamily.org to download the extension. Of course, as the developers of FireGPG note, it’s just a key management tool. If you’re unfamiliar with PGP, you can review our definition for Pretty Good Privacy. GnuPG is quite similar to PGP, with the notable difference of being free sofware released under the GNU General Public License. GnuPG is managed by the GNU project, with complete and free implementation of the OpenPGP standard as defined by RFC2440. You can download GnuPG here.

Make sure to review Dmitri Popov’s excellent post at Linux.com for more information, if you’re interested in trying FireGPG out.

Enjoy your privacy!

Damn Small Linux: How low can a distro go?

We’ve long since defined Linux.

We’ve gone on to note the various distributions, including lightweight versions in the skinny Linux family like Feather Linux, Austrumi and even Puppy Linux. These operating systems are often run directly from live distros burned onto CDs or from hot-swappable flash memory-based jump drives.

We’ve also podcasted about portable applications, where we learned how open source applications like Mozilla’s Firefox Web browser and Thunderbird email client, along with Audacity, OpenOffice and many other apps have been made mobile. Similarly, these applications are run directly from portable storage media or devices. And, like many others, we’re watching how the OLPC’s XO is received and works “in the wild” as it moves from prototype to worldwide distribution.

Now, we’re taking note of the next version of the “portable desktop,” at least as described by Wired’s Monkey Bites blog. Meet “Damn Small Linux,” a distribution of Linux that takes up a mere 50 megabytes of memory. That makes it small enough to fit on most flash drives. Aside from adding even more acronym confusion to the world of computing (given that Damn Small Linux is shortened to “DSL”), DSL is the latest example of how simple experiments using the open source model of development can become robust distributions. In this case, the original concept was to see how many (usable) desktop applications could fit inside of a 50 MB CD, including a functional operating system.


If you’re wondering how many that is, by the way, the current breakdown, according the DSL Web site, includes:

XMMS (MP3, CD Music, and MPEG), FTP client, Dillo Web browser, Netrik Web browser, Firefox, spreadsheet, Sylpheed email, spellcheck (US English), a word processor (Ted), three editors (Beaver, Vim, and Nano [pico clone]), graphics editing and viewing (Xpaint, and xzgv), Xpdf (PDF Viewer), emelFM (file manager), Naim (AIM, ICQ, IRC), VNCviwer, Rdesktop, SSH/SCP server and client, DHCP client, PPP, PPPoE (ADSL), a Web server, calculator, generic and Ghostscript printer support, NFS, Fluxbox and JWM window managers, games, system monitoring apps, a host of command line tools, USB support, PCMCIA support, some wireless support.

Of course, that list could grow over time, but we’re still impressed by the power of community. In fact, it sounds like another example of crowdsourcing to our ears.

Google Desktop: Never leave your homepage without it?

To be fair, we discovered Google Desktop years ago. The recent introduction of Google Desktop for Mac, however, caught our attention and led us to revisit the application.

 

Desktop search itself is nothing new either, of course. Google Desktop has, in its Windows incarnation, been the subject of both security concerns and accusations of spyware.

In fact, recent patch vulnerabilities and a generalized need to lock or secure Google Desktop (read expert Matt Schwartz’s tips on how to tame Google Desktop, if you’re curious) have left enterprise and individual users somewhat cautious about inviting the desktop search engine (DSE) onto their hard drives.

We can’t whole-heartedly recommend it because of these concerns, though the end user experience of many of our geeky early-adopting friends has been positive.

Now, Mac users have the same choice, though as most will immediately protest, OS X’s fourth generation (10.4, aka Tiger) has long had such an engine already built-in, appropriately named Spotlight.

We’ll leave it to you to compare the two, though the Unoffical Apple Weblog (TUAW) has done if for you in this excellent review of Google Desktop for Mac that contrasts the feature sets of the two engines.

If you use other Google apps on your Mac, notably Gmail, Google Desktop may be worth your time. ArsTechnica’s Jacqui Cheng offers a generally positive hands-on review of Google Desktop for Mac as well.