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• The How-To Geek Guide to Audio Editing: The Basics

  - by YatriTrivedi

  Ever get the urge to edit some audio but you’re not sure where to start? Settle in with this HTG guide to the free audio editor Audacity that’s written for beginners but caters to geeks of all levels. Note: this is the first article in a multi-part series that we’ll be covering over the next few weeks Latest Features How-To Geek ETC How To Boot 10 Different Live CDs From 1 USB Flash Drive The 20 Best How-To Geek Linux Articles of 2010 The 50 Best How-To Geek Windows Articles of 2010 The 20 Best How-To Geek Explainer Topics for 2010 How to Disable Caps Lock Key in Windows 7 or Vista How to Use the Avira Rescue CD to Clean Your Infected PC Tune Pop Enhances Android Music Notifications Another Busy Night in Gotham City Wallpaper Classic Super Mario Brothers Theme for Chrome and Iron Experimental Firefox Builds Put Tabs on the Title Bar (Available for Download) Android Trojan Found in the Wild Chaos, Panic, and Disorder Wallpaper

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• [GEEK SCHOOL] Network Security 7: Using the Action Center for Extra Security and Maintenance

  - by Ciprian Rusen

  In this lesson we will talk about another lesser-known security tool in Windows – the “Action Center”. This tool that has an impact on both how secure your system is and how well it is running from a maintenance perspective. The Action Center first made its appearance all the way back in Windows XP as the “Windows Security Center” and was such through Vista until being renamed in Windows 7.Click Here to Continue Reading

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• Gujarat Fonts - Indic

  - by Navin Talati

  Sir, I need to install Gujarat Fonts - INDIC. From where shell I get the concerned font file to install? I had previously Win XP and the fonts were installed but the same is not applicable for the Ubuntu. In indic case there is a facility to type gujarati as per the pronounciation using english alphabets and also gives display at a corner for guidance that which character required to be typed. Please suggest how to avail the same facility in this Ubuntu.

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• ASP.NET Pager Supports Keyboard Navigation - v2010 vol 1

  Here’s a feature for all your users who are keyboard ninjas. The ASPxPager control now provides better keyboard support - increasing both web site usability and accessibility. If you are using a DevExpress ASP.NET Pager control - either standalone or integrated into our data-aware controls like the ASPxGridView – then you can now navigate to the previous/next page by pressing the CTRL+ARROW key combinations. To see a standalone version of our ASP.NET Pager, check out this slick movie-theme...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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• Will Unity allow users to change the color/appearance of the top-Panel?

  - by Sam

  I'm very excited by the functional design principles and keyboard shortcuts that are being implemented for Unity. And function of use is more important to me than looks. However, after experiencing the aesthetic beauty of the display of the top panel in gnome-shell, I was wondering if users would be able to alter the color of Unity's top panel? IMHO it does not look as good as the gnome-shell implementation (or mac OS X/iPad). I think if an alternate color/appearance were chosen for the panel, it would make a big difference aesthetically. Is there a way to make it Black like gnome-shell? Or are the color choices limited to theme-designs as pointed out in this answer? For efficiency and clarity, the Panel should be better differentiated from application controls. The panel should be a different color because it has a "constant (always present) state," unlike application controls. For contrast and easy-recognition, I would like to make the Panel black (like gnome-shell) but make the application controls (e.g., those of Firefox) "Inverted"

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• Migrating from VMware to VirtualBox

  - by Fat Bloke

  We are getting more and more people asking how to move from VMware to VirtualBox so here are 2 handy blogs on the subject: Migrating an Oracle Enterprise Linux VMMigrating a Windows XP VMHope this is useful to someone out there.- FB

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• Hack a Wireless Doorbell for Customizable Ring Tones

  - by Jason Fitzpatrick

  When it comes to door bells, why limit yourself to a simple bell toll when you could be alerted to visitors by the Super Mario Bros. theme? This customizable doorbell hack brings ring tones to your front door. Check out the video above to see it assembled and in action, then hit up the link below for the wiring diagrams and step-by-step instructions. How to Add Custom Ringtones to a Wireless Doorbell [via Hacked Gadgets] How To Use USB Drives With the Nexus 7 and Other Android Devices Why Does 64-Bit Windows Need a Separate “Program Files (x86)” Folder? Why Your Android Phone Isn’t Getting Operating System Updates and What You Can Do About It

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• Session Report - Modern Software Development Anti-Patterns

  - by Janice J. Heiss

  In this standing-room-only session, building upon his 2011 JavaOne Rock Star “Diabolical Developer” session, Martijn Verburg, this time along with Ben Evans, identified and explored common “anti-patterns” – ways of doing things that keep developers from doing their best work. They emphasized the importance of social interaction and team communication, along with identifying certain psychological pitfalls that lead developers astray. Their emphasis was less on technical coding errors and more how to function well and to keep one’s focus on what really matters. They are the authors of the highly regarded The Well-Grounded Java Developer and are both movers and shakers in the London JUG community and on the Java Community Process. The large room was packed as they gave a fast-moving, witty presentation with lots of laughs and personal anecdotes. Below are a few of the anti-patterns they discussed.Anti-Pattern One: Conference-Driven DeliveryThe theme here is the belief that “Real pros hack code and write their slides minutes before their talks.” Their response to this anti-pattern is an expression popular in the military – PPPPPP, which stands for, “Proper preparation prevents piss-poor performance.”“Communication is very important – probably more important than the code you write,” claimed Verburg. “The more you speak in front of large groups of people the easier it gets, but it’s always important to do dry runs, to present to smaller groups. And important to be members of user groups where you can give presentations. It’s a great place to practice speaking skills; to gain new skills; get new contacts, to network.”They encouraged attendees to record themselves and listen to themselves giving a presentation. They advised them to start with a spouse or friends if need be. Learning to communicate to a group, they argued, is essential to being a successful developer. The emphasis here is that software development is a team activity and good, clear, accessible communication is essential to the functioning of software teams. Anti-Pattern Two: Mortgage-Driven Development The main theme here was that, in a period of worldwide recession and economic stagnation, people are concerned about keeping their jobs. So there is a tendency for developers to treat knowledge as power and not share what they know about their systems with their colleagues, so when it comes time to fix a problem in production, they will be the only one who knows how to fix it – and will have made themselves an indispensable cog in a machine so you cannot be fired. So developers avoid documentation at all costs, or if documentation is required, put it on a USB chip and lock it in a lock box. As in the first anti-pattern, the idea here is that communicating well with your colleagues is essential and documentation is a key part of this. Social interactions are essential. Both Verburg and Evans insisted that increasingly, year by year, successful software development is more about communication than the technical aspects of the craft. Developers who understand this are the ones who will have the most success. Anti-Pattern Three: Distracted by Shiny – Always Use the Latest Technology to Stay AheadThe temptation here is to pick out some obscure framework, try a bit of Scala, HTML5, and Clojure, and always use the latest technology and upgrade to the latest point release of everything. Don’t worry if something works poorly because you are ahead of the curve. Verburg and Evans insisted that there need to be sound reasons for everything a developer does. Developers should not bring in something simply because for some reason they just feel like it or because it’s new. They recommended a site run by a developer named Matt Raible with excellent comparison spread sheets regarding Web frameworks and other apps. They praised it as a useful tool to help developers in their decision-making processes. They pointed out that good developers sometimes make bad choices out of boredom, to add shiny things to their CV, out of frustration with existing processes, or just from a lack of understanding. They pointed out that some code may stay in a business system for 15 or 20 years, but not all code is created equal and some may change after 3 or 6 months. Developers need to know where the code they are contributing fits in. What is its likely lifespan? Anti-Pattern Four: Design-Driven Design The anti-pattern: If you want to impress your colleagues and bosses, use design patents left, right, and center – MVC, Session Facades, SOA, etc. Or the UML modeling suite from IBM, back in the day… Generate super fast code. And the more jargon you can talk when in the vicinity of the manager the better.Verburg shared a true story about a time when he was interviewing a guy for a job and asked him what his previous work was. The interviewee said that he essentially took patterns and uses an approved book of Enterprise Architecture Patterns and applied them. Verburg was dumbstruck that someone could have a job in which they took patterns from a book and applied them. He pointed out that the idea that design is a separate activity is simply wrong. He repeated a saying that he uses, “You should pay your junior developers for the lines of code they write and the things they add; you should pay your senior developers for what they take away.”He explained that by encouraging people to take things away, the code base gets simpler and reflects the actual business use cases developers are trying to solve, as opposed to the framework that is being imposed. He told another true story about a project to decommission a very long system. 98% of the code was decommissioned and people got a nice bonus. But the 2% remained on the mainframe so the 98% reduction in code resulted in zero reduction in costs, because the entire mainframe was needed to run the 2% that was left. There is an incentive to get rid of source code and subsystems when they are no longer needed. The session continued with several more anti-patterns that were equally insightful.

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• WooCommerce Themes

  - by Matt

  Looking to run your Ecommerce website on WordPress platform? Woothemes’ WooCommerce themes are the best in this league. Here is a post where you can compare, review & choose the right one for your use. WooFramework powers all their WordPress themes. It provides a reliable, structured code base for you to customize and provides multiple [...] Related posts:Beveled Premium WordPress Theme by Woothemes 21+ WordPress Photo Blog & Portfolio Themes 12 Best WordPress Themes for Church

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• Moving one site in Webmaster Tools to more then one site

  - by Towhid

  I have a Question and Answer site about immigration. now I divided it into 2 sites: mysite.co.uk about immigration to UK mysite.com with sub domains for every country, Like: australia.mysite.com , sweden.mysite.com , ... now I had moved All the content from my first site into .co.uk and .com site and it's sub domains to fill theme. I now that Google will detect my new 2 sites as duplicate of first on and it is very bad for SEO. and I don't think Google webmaster tools has a tool for it. so Please Guide me how to fix this problem.

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• How To Boot 10 Different Live CDs From 1 USB Flash Drive

  - by YatriTrivedi

  Ever get the urge to try out a bunch of Linux distros at once? Maybe you’re hosting a Linux installation party. Here’s an easy way to get a bunch of Live CDs working from a single thumb drive Latest Features How-To Geek ETC How To Boot 10 Different Live CDs From 1 USB Flash Drive The 20 Best How-To Geek Linux Articles of 2010 The 50 Best How-To Geek Windows Articles of 2010 The 20 Best How-To Geek Explainer Topics for 2010 How to Disable Caps Lock Key in Windows 7 or Vista How to Use the Avira Rescue CD to Clean Your Infected PC Tune Pop Enhances Android Music Notifications Another Busy Night in Gotham City Wallpaper Classic Super Mario Brothers Theme for Chrome and Iron Experimental Firefox Builds Put Tabs on the Title Bar (Available for Download) Android Trojan Found in the Wild Chaos, Panic, and Disorder Wallpaper

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• Could not display chart. The control is not properly registered. (4 replies)

  I've seen other people raise this in searching the web but can't find any definitive answers so apologies if this has been answered previously (but please point me in that direction). I have two XP Pro SP2 workstations one works fine in that it shows the result graphs in ACT (v1.0.536.0) and the other gives the error &quot;Could not display chart. The control is not properly registered.&quot;. Both systems ...

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• Specs, Form and Function – What am I Missing?

  - by Barry Shulam

  0 0 1 628 3586 08041 29 8 4206 14.0 Normal 0 false false false EN-US JA X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:Cambria; mso-ascii-font-family:Cambria; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Cambria; mso-hansi-theme-font:minor-latin;} Friday October 26th the Microsoft Surface RT arrived at the office.  I was summoned to my boss’s office for the grand unpacking.  If I had planned ahead I could have used my iPhone 4 to film the event and post it on YouTube however the desire to hold the device and turn it ON was more inviting than becoming a proxy reviewer for Engadget’s website.  1980 was the first time we had a personal computer in our house.  It was a  Kaypro computer. It weighed 29 pounds more than any persons lap could hold.  Then the term “portable computer” meant you could remove it from the building and take it else where.  Today I am typing on this entry on a Macbook Air which weighs 2.38 pounds. This morning Amazons front page main title is: “Much More for Much Less” I was born at the right time to start with the CPM operating system on the Kaypro thru the DOS, Windows, Linux, Mac OSX and mobile phone operating systems and languages.  If you are not aware Technology is moving at a rapid pace.  The New iPad (those who are keeping score – iPad4) is replacing a 7 month old machine the New iPad (iPad 3) I have used and owned many technology devices in my life.  The main point that most of the reader who are in the USA overlook is the fact that we are in the USA.  The devices we purchase have a great digital garden to support them.  The Kaypro computer had a 7-inch screen.  It was a TV tube with two colors – Black and Green.  You could see the 80-column screen flicker with characters – have you every played Pac-Man emulated on the screen with the ABC characters. Traveling across the world you will find that not all apps on your device will function as they did back home because they are not offered outside of your country of origin. I think the main question a buyer of technology should be asking is Function.  The greatest Specs with out function limit you.  The most beautiful form with out function is the same as a crystal vase on your shelf – not a good cereal bowl in the morning. Microsoft Surface RT, Amazon Kindle Fire and Apple iPad all great devices in their respective customers hands. My advice for those looking to purchase on this year:  If the device is your only technology device you buy what you WANT and LIKE. Consider this parallel universe if its not your only device?  Ever go shopping for clothing, shoes, and accessories with your wife, girlfriend, sister or mother?  If you listen carefully you will hear the little voices coming out of there heads saying:  “This goes well with that and I can use it also with that outfit” ”Do you think this clashes with that?”  “Ohh I love how that combination looks on you”.  Portable devices such as tablets and computers can offer a whole lot more when they are combined with the digital echo system you have at home and the manufacturer offers online. Pros of each Device: Microsoft Surface RT: There is a new functionality named SmartGlass which will let you share the content off your tablet to your XBOX 360.  Microsoft office is loaded on the tablet.  You can have more than one user profile on the tablet if you share it with others.   Amazon Kindle or Kindle HD: If you are an Amazon consumer with an annual Amazon Prime service you can consume videos and read books off the Amazon site.  Its the cheapest device.  Its a step up from the kindle reader in many ways.   Apple Ipad or Ipad mini: Over 270 Thousand applications.  Airplay permits you the ability to share to your TV screen. If you are a cord cutter (a person who gets their entertainment content over the web or air vs Cable Providers) the Airplay or Smart glass are a huge bonus.  iPad mini or not: The mini will fit in a purse where the larger one will not.  Its lighter which makes it nice to hold for prolonged periods.  It has an option for LTE wireless which non of the other sub 9 inch tables offer.  The screen is non retina which means the applications are smaller.  Speaking with individuals who are above 50 in age that wear glasses they retina does not make a difference for them however they prefer the larger iPad over the new mini.   Happy Shopping this Channuka Season.   The Kosher Coder.   Follow me on twitter @KosherCoder

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• TinyMCE autoresize plugin not works

  - by user31929

  I want to reproduce this simply behaviour : http://tinymcesupport.com/tutorials/autoresize-automatic-resize-plugin This is my init: <!-- TinyMCE --> <script type="text/javascript" src="js/jscripts/tiny_mce/tiny_mce.js"></script> <script type="text/javascript"> tinyMCE.init({ mode : "exact", elements : "pagina_testo_colonna1,pagina_testo_colonna2,pagina_testo_colonna3", theme : "advanced", plugins:"paste,autoresize", plugin_preview_width : "100%", width : "100%", theme_advanced_buttons1 : "pastetext,|,bold,italic,underline,strikethrough,|,bullist,numlist,|,indent,outdent,|,undo,redo,|,justifyleft,justifycenter,justifyright,justifyfull,|,link,unlink,|,charmap", theme_advanced_buttons2 : "", theme_advanced_buttons3 :"", theme_advanced_disable : "image,anchor,cleanup,help,code,hr,removeformat,sub,sup", theme_advanced_resizing : true, paste_text_use_dialog : true, relative_urls : false, remove_script_host : false }); </script> <!-- /TinyMCE --> i have added "autoresize" to plugins list but my editors not resize while i writing, they simply scroll. I have multiple editor in the same page. What's wrong with my code?

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• The 20 Best How-To Geek Explainer Topics for 2010

  - by The Geek

  It’s near the end of 2010, and we’ve put together a list of the 20 best “Explainer” articles of the year—where we answer a question and teach you a little more about the topic. Enjoy! Latest Features How-To Geek ETC How to Use the Avira Rescue CD to Clean Your Infected PC The Complete List of iPad Tips, Tricks, and Tutorials Is Your Desktop Printer More Expensive Than Printing Services? 20 OS X Keyboard Shortcuts You Might Not Know HTG Explains: Which Linux File System Should You Choose? HTG Explains: Why Does Photo Paper Improve Print Quality? Simon’s Cat Explores the Christmas Tree! [Video] The Outdoor Lights Scene from National Lampoon’s Christmas Vacation [Video] The Famous Home Alone Pizza Delivery Scene [Classic Video] Chronicles of Narnia: The Voyage of the Dawn Treader Theme for Windows 7 Cardinal and Rabbit Sharing a Tree on a Cold Winter Morning Wallpaper An Alternate Star Wars Christmas Special [Video]

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• upgrade from ubuntu 13.04 to 13.10 causes vmware workstation 9 problems

  - by dan

  so, upgrade caused problem where running vmware ws 9 needed patches to accommodate linux kernal 3.11. I applied those fixes I found that others reported, and now i can only run vmware ws 9 from sudo. If i run it from standard user, it says it wants to recompile modules, which it does not do unless I open up a terminal and run sudo vmware. that works, but would like it to work correctly, have the modules that are recompiled stick. when running under sudo vmware, it does recompile with errors.. (vmware-unity-helper:13019): Gtk-WARNING **: Unable to locate theme engine in module_path: "murrine", and starts up and works ok. any ideas? thanks for any help you can provide

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• The entire content of my Wordpress page has disappeared

  - by John Catterfeld

  I have a blog installed on my site using Wordpress. Last week I upgraded Wordpress from 2.6 to 3.0.4 (I had to do this manually). All went well, or so I thought, but I have just noticed that the content of an existing page has vanished. The page URL still works, but all content has disappeared - doctype, html tags, body tags, everything. Please note, this is specific to pages - posts are still displaying fine. I have since created a brand new page which does not display the content either. Things I have tried include Switching to a freshly installed theme Deactivating all plugins Setting the problem page to draft, and back again Deleting the .htaccess file I suspect it's a database problem and have contacted my hosting company who have said the only thing they can do is restore the DB from a backup, but that I should consider it a last resort. Does anyone have any further ideas what to try?

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• Is it risky to install KDE on Ubuntu alongside Unity and Gnome?

  - by Vagrant232

  The last time I installed KDE and Gnome on the same OS (Opensuse 12.1), GDM and KDM started conflicting and they both stopped working properly and I was plagued with applications from both environments till the point the applications overview in gnome was flooded with useless KDE trash. Moreover, I still had parts of the KDE desktop appearing when I'm running Gnome (such as the password manager and kde fonts and some apps refused to give up the oxygen theme). If I install the plasma-desktop package on Ubuntu, am I at risk of having such issues? I just want KDE with the bare minimum number of applications; just the necessary ones to make things work. I'd rather not have dolphin installed either. Also, is it all right to install the kde-standard pack? Or should I just stick to the plasma-desktop pack?

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• Python response parse [migrated]

  - by Pavel Shevelyov

  When I'm sending some data on host: r = urllib2.Request(url, data = data, headers = headers) page = urllib2.urlopen(r) print page.read() I have something like this: [{"command":"settings","settings":{"basePath":"\/","ajaxPageState":{"theme":"spsr","theme_token":"kRHUhchUVpxAMYL8Y8IoyYIcX0cPrUstziAi8gSmMYk","css":[]},"ajax":{"edit-submit":{"callback":"spsr_calculator_form_ajax","wrapper":"calculator_form","method":"replaceWith","event":"mousedown","keypress":true,"url":"\/ru\/system\/ajax","submit":{"_triggering_element_name":"submit"}}}},"merge":true},{"command":"insert","method":null,"selector":null,"data":"\u003cdiv id=\"calculator_form\"\u003e\u003cform action=\"\/ru\/service\/calculator\" method=\"post\" id=\"spsr-calculator-form\" accept-charset=\"UTF-8\"\u003e\u003cdiv\u003e\u003cinput id=\"edit-from-ship-region-id\" type=\"hidden\" name=\"from_ship_region_id\" value=\"\" \/\u003e\n\u003cinput type=\"hidden\" name=\"form_build_id\" value=\"form-0RK_WFli4b2kUDTxpoqsGPp14B_0yf6Fz9x7UK-T3w8\" \/\u003e\n\u003cinput type=\"hidden\" name=\"form_id\" value=\"spsr_calculator_form\" \/\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bg_p\"\u003e \n\u0421\u0435\u0439\u0447\u0430\u0441 \u0412\u044b... bla bla bla but I want have something, like this: <html><h1>bla bla bla</h1></html> How can I do it?

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• Make the Taskbar Buttons Switch to the Last Active Window in Windows 7

  - by The Geek

  The new Windows 7 taskbar’s Aero Peek feature, with the live thumbnails of every window, is awesome… but sometimes you just want to be able to click the taskbar button and have the last open window show up instead. Here’s a quick hack to make it work better. To better understand the problem, imagine having nine windows of the same type open on your screen, but you are primarily working in just one of the windows at a time. So every time you want to switch back, you have to click the taskbar button, and then choose the one you are using from the list, which can be pretty annoying… Now if you know your Windows 7 shortcuts, you’d know that you can simply hold down the Ctrl key while clicking on the taskbar button, and the last window will show up. In fact, you can keep holding down the Ctrl key and keep clicking, and Windows will cycle through the open windows. It’s a useful shortcut, but hardly something you want to do every single time. Instead, we’ll use a quick registry hack to make the normal click switch to the last open window—if you still want to see the thumbnail list, just hover your mouse over the button for half a second to see the full list. Manual Registry Hack for Last Active Window Open up regedit.exe through the start menu search or run box, and then head down to the following registry key: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced Once you’re there, create a new 32-bit DWORD value on the right hand side, give it the name LastActiveClick, and set the value to 1. Once you are done, it should look something like this: Once you are done, you’ll have to log off and back on, or you can kill Explorer.exe through Task Manager and re-open it. Download the Registry Hack Instead Since you probably don’t feel like registry hacking, we’ve provided you an easy downloadable version. You can simply download the file, extract it, and then double-click on the LastActiveClick.reg file. Once you are done, you’ll have to log off and back on, just like with the manual registry hack. Download LastActiveClick Registry Hack from howtogeek.com Similar Articles Productive Geek Tips Make the Windows 7 Taskbar Work More Like Windows XP or VistaStupid Geek Tricks: Select Multiple Windows on the TaskbarReorganize Your Taskbar Buttons and Tray Icons in XP/VistaKeyboard Ninja: Create a Hotkey to Switch to Your Open Outlook WindowTaskbar Eliminator Does What the Name Implies: Hides Your Windows Taskbar TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips DVDFab 6 Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 Gadfly is a cool Twitter/Silverlight app Enable DreamScene in Windows 7 Microsoft’s “How Do I ?” Videos Home Networks – How do they look like & the problems they cause Check Your IMAP Mail Offline In Thunderbird Follow Finder Finds You Twitter Users To Follow

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• Data management in unexpected places

  - by Ashok_Ora

  Normal 0 false false false EN-US X-NONE X-NONE Data management in unexpected places When you think of network switches, routers, firewall appliances, etc., it may not be obvious that at the heart of these kinds of solutions is an engine that can manage huge amounts of data at very high throughput with low latencies and high availability. Consider a network router that is processing tens (or hundreds) of thousands of network packets per second. So what really happens inside a router? Packets are streaming in at the rate of tens of thousands per second. Each packet has multiple attributes, for example, a destination, associated SLAs etc. For each packet, the router has to determine the address of the next “hop” to the destination; it has to determine how to prioritize this packet. If it’s a high priority packet, then it has to be sent on its way before lower priority packets. As a consequence of prioritizing high priority packets, lower priority data packets may need to be temporarily stored (held back), but addressed fairly. If there are security or privacy requirements associated with the data packet, those have to be enforced. You probably need to keep track of statistics related to the packets processed (someone’s sure to ask). You have to do all this (and more) while preserving high availability i.e. if one of the processors in the router goes down, you have to have a way to continue processing without interruption (the customer won’t be happy with a “choppy” VoIP conversation, right?). And all this has to be achieved without ANY intervention from a human operator – the router is most likely to be in a remote location – it must JUST CONTINUE TO WORK CORRECTLY, even when bad things happen. How is this implemented? As soon as a packet arrives, it is interpreted by the receiving software. The software decodes the packet headers in order to determine the destination, kind of packet (e.g. voice vs. data), SLAs associated with the “owner” of the packet etc. It looks up the internal database of “rules” of how to process this packet and handles the packet accordingly. The software might choose to hold on to the packet safely for some period of time, if it’s a low priority packet. Ah – this sounds very much like a database problem. For each packet, you have to minimally · Look up the most efficient next “hop” towards the destination. The “most efficient” next hop can change, depending on latency, availability etc. · Look up the SLA and determine the priority of this packet (e.g. voice calls get priority over data ftp) · Look up security information associated with this data packet. It may be necessary to retrieve the context for this network packet since a network packet is a small “slice” of a session. The context for the “header” packet needs to be stored in the router, in order to make this work. · If the priority of the packet is low, then “store” the packet temporarily in the router until it is time to forward the packet to the next hop. · Update various statistics about the packet. In most cases, you have to do all this in the context of a single transaction. For example, you want to look up the forwarding address and perform the “send” in a single transaction so that the forwarding address doesn’t change while you’re sending the packet. So, how do you do all this? Berkeley DB is a proven, reliable, high performance, highly available embeddable database, designed for exactly these kinds of usage scenarios. Berkeley DB is a robust, reliable, proven solution that is currently being used in these scenarios. First and foremost, Berkeley DB (or BDB for short) is very very fast. It can process tens or hundreds of thousands of transactions per second. It can be used as a pure in-memory database, or as a disk-persistent database. BDB provides high availability – if one board in the router fails, the system can automatically failover to another board – no manual intervention required. BDB is self-administering – there’s no need for manual intervention in order to maintain a BDB application. No need to send a technician to a remote site in the middle of nowhere on a freezing winter day to perform maintenance operations. BDB is used in over 200 million deployments worldwide for the past two decades for mission-critical applications such as the one described here. You have a choice of spending valuable resources to implement similar functionality, or, you could simply embed BDB in your application and off you go! I know what I’d do – choose BDB, so I can focus on my business problem. What will you do? /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin;}

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• how to change gtk3 color scheme on ubuntu 13.04

  - by Michael87

  I am making the transition from windows 7 to ubuntu 13.04. I have ran ubuntu twice on my laptop and switched back to windows 7 namely becuase the orange and gray colors of ubuntu is just ugly. I know how to change ambiance to radiance but the gtk colors themselves SHOULD be customizable. I managed to do it once with 12.04 using kde's color manager but the thing wigged out on me. So please. is there a way to change 13.04's color scheme without downloading some theme that may or may not work? thank you.

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• How To Remove Vocals From Music Tracks Using Audacity

  - by YatriTrivedi

  Ever get a sudden, inexplicably irresistible desire for karaoke? Maybe you like the music of a song but can’t stand the lead singer? Here’s how to use remove the vocals from most music tracks in a few simple steps.HTG Explains: What’s the Difference Between the Windows 7 HomeGroups and XP-style Networking?Internet Explorer 9 Released: Here’s What You Need To KnowHTG Explains: How Does Email Work?

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• Some files not copied when moving an encrypted home to a different partition

  - by Jon Herrin

  I have "successfully" moved my encrypted home to a separate partition using the instructions here: How can i move an encrypted home directory to another partition? However, some files are not being copied over. Most notably, I have a directory in my old home that contains the themes I use. This directory and it's contents are not copied over to the new home and therefore I come up with the default theme. Permissions on the directory that was not moved are identical to the other directories in home. Another discrepancy is that my Dropbox folder came over empty and had to resync itself. My concern is what else might be missing from the copied home. At this point, I've flipped back to the old home by re-editing /etc/fstab, but I'd really like to get /home cleanly and completely off of root without having to core the system.

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• How to Tweak the Low Battery Action On Your Windows 7 Laptop

  - by The Geek

  If you’ve got a netbook with really great battery life, you’ll probably still have loads of time left even with only 10% of the battery remaining. Here’s how to tweak the settings so it alerts you or goes into sleep mode at a more reasonable time. Note: obviously if you don’t have a great battery in your laptop, you should probably be careful with these settings or you might lose data. If anything, you’d be better off making the notifications happen sooner in that case Latest Features How-To Geek ETC The 20 Best How-To Geek Linux Articles of 2010 The 50 Best How-To Geek Windows Articles of 2010 The 20 Best How-To Geek Explainer Topics for 2010 How to Disable Caps Lock Key in Windows 7 or Vista How to Use the Avira Rescue CD to Clean Your Infected PC The Complete List of iPad Tips, Tricks, and Tutorials Classic Super Mario Brothers Theme for Chrome and Iron Experimental Firefox Builds Put Tabs on the Title Bar (Available for Download) Android Trojan Found in the Wild Chaos, Panic, and Disorder Wallpaper Enjoy Christmas Beyond the Holiday with Christmas Eve Crisis Parrotfish Extends the Number of Services Accessible in Twitter Previews

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