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• I can see traffic coming from google ads, even though I don't have any google ads running, how is that possible?

  - by freethinker

  I can see "googleads.g.doubleclick.net/pagead/ads...." as a referrer on my website. However I am not running any google ads. So how am I getting the traffic? Here's the complete URL http://googleads.g.doubleclick.net/pagead/ads?output=html&h=250&slotname=5275434421&w=300&lmt=1311690266&flash=10.1.102&url=http%3A%2F%2Fwww.humbug.in%2Fsuperuser%2Fes%2Fpromiscuous-modo-con-intel-centrino-adelantado-n-6200-agn-tarjeta-inalambrica--214946.html&dt=1311690268347&bpp=3&shv=r20110713&jsv=r20110719&prev_slotnames=7553874535%2C5896307875%2C8590890981&correlator=1311690268052&frm=4&adk=3153418812&ga_vid=1396001617.1311690268&ga_sid=1311690268&ga_hid=558368546&ga_fc=1&u_tz=-180&u_his=1&u_java=0&u_h=1024&u_w=1280&u_ah=960&u_aw=1280&u_cd=24&u_nplug=6&u_nmime=22&biw=1263&bih=851&fu=0&ifi=4&dtd=441&xpc=T5MgG9EVV9&p=http%3A%2F%2Fwww.humbug.in

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• Complete RESTful API debugging/testing tool

  - by vartec

  I'm looking for the most complete tool, preferably portable GUI or browser plugin to test RESTful API. What I need is: GET/POST/DELETE/PUT support multiple file uploads as fields (multipart/form-data) file uploads as body Extra points for: possibility to save multiple configurations and use them to pre-fill parameters OAuth support nice JSON response formatting Currently I'm using 3 tools: Chrome REST Console extension — My favorite, very nicely done. Has OAuth. However the functionality missing for me is sending file as a body of the request; Cannot send multiple files; Firefox Poster add-on — Quite nice, but the functionality it's missing for file as POST fields parameters; Also cannot send multiple files; cURL — can do anything, but it's quite tedious to use it from command line.

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• php templating with codeigniter

  - by JaPerk14

  I am currently develop a website application in codeigniter, and I'd like to do something in PHP / CodeIgniter where I can make a common template for separate sections of the website. I was thinking that I would keep the header / footer in a separate php files & include them separately. The thing I'm not sure about is the content beneath the header and above the footer. This website application will contain a lot of different pages, so I'm having a hard time figuring how what's the best way to do this.

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• Newsletter sent with drupal goes to Spam Folder [closed]

  - by HerrSerker

  Possible Duplicate: How could I prevent my mail from being recognized as spam? I'm sending a newsletter with drupals simplenews module The website is hosted on an 1und1 server in germany (as seen in in header domains online.de and kundenserver.de) When I send it, it goes to Spam folder in Yahoo & GMail Mailbox, but not in Spam Folder in web.de, hotmail and GMX Mailboxes Here is, what I have in the Mail Header (for yahoo in this example) Received: from 12.345.678.90 (EHLO sXXXXXXXXX.online.de) (12.345.678.90) by mtaXXX.mail.kks.yahoo.co.jp with SMTP; Fri, 15 Jun 2012 18:45:24 +0900 Received: from [127.0.0.1] (helo=infongdXXXXX.rtr.kundenserver.de) by sXXXXXXXXX.online.de with esmtp (Exim 4.72) (envelope-from <[email protected]>) id 1SfT5k-00068r-Q8 for [email protected]; Fri, 15 Jun 2012 11:45:20 +0200 Received: from 83.136.130.41 (IP may be forged by CGI script) by infongdXXXXX.rtr.kundenserver.de with HTTP id 0Z04SW-1SQTKp3LPr-00YxYk; Fri, 15 Jun 2012 11:45:20 +0200 From: SENDER <[email protected]> To: "[email protected]" <[email protected]> Date: Fri, 15 Jun 2012 11:45:20 +0200 Subject: This is the subject of the newsletter Thread-Topic: This is the subject of the newsletter Thread-Index: Ac1K3nT42juzo7uCSkq5dTlby1ZvpQ== List-Unsubscribe: <http://www.example.com/newsletter/confirm/remove/XXXXXXXXX> X-MS-Has-Attach: X-Auto-Response-Suppress: All X-MS-TNEF-Correlator: x-originating-ip: [12.345.678.90] authentication-results: mtaXXX.mail.kks.yahoo.co.jp from=example.com; domainkeys=neutral (no sig); dkim=neutral (no sig) header[email protected] errors-to: "SENDER" <[email protected]> received-spf: none (sXXXXXXXXX.online.de: domain of [email protected] does not designate permitted sender hosts) x-apparently-to: [email protected] via 123.45.67.890; Fri, 15 Jun 2012 18:45:25 +0900 x-sender-info: <[email protected]> content-length: 13762 Content-Type: multipart/alternative; boundary="_000_7471797868716571796675707173696675806577726778666766687_" MIME-Version: 1.0 I cannot see any direct spam filter message in this. But I'm kind of stunned by the Received: from 83.136.130.41 (IP may be forged by CGI script) part. After I searched a bit, it seems, that this is a special 'feature' of 1und1 Mail servers. Here are my questions: Is it possible that, if I get rid of the 'Ip maybe forged' part, that the Mail is not regarded as spam anymore? If so, Does anyone know, how I can get rid of it in drupal?

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• Google Webmasters tools crawl error caused by URL split into two lines

  - by Shiro

  I am looking in to Google Webmaster Tools - Crawl Error section. How should I handle for those URL due their system / application showed invalid URL. e.g http://www.example/images/products/s_=enlarge_16gb.jpg but, I dunno what happen to yahoo groups, it break the link into http://www.example/images/products/s_= enlarge_16gb.jpg and I only make the top part become hyperlink, which is http://www.example/images/products/s_= Because of the URL, Google show crawl error, I got few error because of this kind of result or because other people typo error. How do I prevent this. I am sure I don't have the right go and change other people post. What is the solution for this. Thanks!

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• Dealing with blackhat SEO companies and low quality link building competitors [closed]

  - by Mikko Ohtamaa

  I have often faced a case where the competitors of my client use SEO blackhat tactics where they contact a SEO company to do link building for their websites and products. Here is an example of a typical case of a fake blog created only for link building purposes A very low content article http://marshallfab.com/fundus-camera-explained.html in obvious fake blog: no author information, partially machine generated text, all blog posts are solely about link building Following the link you get to the promoted company page http://www.patternless.com/ ... which, unsurprisingly, links the SEO company homepage in the footer text http://www.affordableseofl.com/ ... who are not shy to advertise their Extremely aggressive SEO plan Does Google have any feedback channel where one could submit cases like this, so that Google would punish the link builders? Are there any means to bring these blackhat companies to pushame to damage their reputation?

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• Partial Submit vs. Auto Submit

  - by Frank Nimphius

  Partial Submit ADF Faces adds the concept of partial form submit to JavaServer Faces 1.2 and beyond. A partial submit actually is a form submit that does not require a page refresh and only updates components in the view that are referenced from the command component PartialTriggers property. Another option for refreshing a component in response to a partial submit is call AdfContext.getCurrentInstance.addPartialTarget(component_instance_handle_goes_here)in a managed bean. If a form contains required fields that the user left empty invoking the partial submit, then errors are shown for each of the field as the full form gets submitted. Autosubmit An input component that has its autosubmit property set to true also performs a partial submit of the form. However, this time it doesn't submit the entire form but only the component that triggers the submit plus components referenced it in their PartialTriggers property. For example, consider a form that has three input fields inpA, inpB and inpC with autosubmit=true set on inpA and required=true set on inpB and inpC. use case 1: Running the view, entering data into inpA and then tabbing out of the field will submit the content for inpA but not for inpB and inpC. Further more, none of the required field settings on inpB and inpC causes an error. use case 2: You change the configuration of inpC and set its PartialTriggers property to point to the ID of component inpA. When rerunning the sample, entering a value into inpA and tabbing out of the field will now submit the inpA and inpC fields and thus show an error for the missing required value on inpC. Internally, using autosubmit=true on an input component sets the event root to just this field, which good to have in case of dependent field validation or behavior. The event root can extended to include other components by using the Partial Triggers property on these components to point to the input field that has autosubmit=true defined. PartialSubmit vs. AutoSubmit Partial submit set on a command component submits the whole form and leaves it to the developer to decide which UI component is refreshed in response. Client side required field validation (as well as the server side equivalent) is not disabled by executed in this scenario. Setting immediate=true on the command item to skip validation doesn't help as it would also skip the model update. Auto submit is a functionality on the input components and also performs a partial form submit. However, in addition an event root is defined that narrows the scope for the submitted data and thus the components that are validated on the request. To read more about this topic, see: http://docs.oracle.com/cd/E23943_01/web.1111/b31973/af_lifecycle.htm#CIAHCFJF

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• Cannot install nautilus elementary.

  - by coklatua

  when I try apt-cache policy nautilus it shows this, Installed: 1:2.32.0-0ubuntu1-ppa1 Candidate: 1:2.32.0-0ubuntu1-ppa1 Version table: *** 1:2.32.0-0ubuntu1-ppa1 0 100 /var/lib/dpkg/status 1:2.32.0-0ubuntu6~ppa160 0 500 http://ppa.launchpad.net/am-monkeyd/nautilus-elementary-ppa/ubuntu/ maverick/main amd64 Packages 1:2.32.0-0ubuntu1.1 0 500 http://archive.ubuntu.com/ubuntu/ maverick-updates/main amd64 Packages 1:2.32.0-0ubuntu1 0 500 http://archive.ubuntu.com/ubuntu/ maverick/main amd64 Pack As you can see I allready add the am-monkeyd ppa but when i'm update & upgrade nothing change.

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• Sharing unique links on social media vs SEO

  - by MJWadmin

  We're currently implementing a voucher system on our site which will allow our users to obtain a 25+% discount on certain products, provided they donate 10% of the purchase price to charity. We will offer the ability to share the discounts via social media in return for larger discounts to the sharer for each person who clicks through the link and buys an item. I understand that social links have SEO benifits, but this appears to be based on lots of people sharing the same link. If our voucher users share a unique link i.e. http://ourdomain.com/sipsfesdf rather than a fixed link http://ourdomain.com/product-name will we still receive the same benifts? Should we instead share something like http://ourdomain.com/product-name/sipsfesdf Thanks in advance.

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• Does having a website inside a frame (<frameset>) helps or affect search engine rankings?

  - by rajesh.magar

  I have been working to promote my website from long time but not getting such traffic as work I have done on that. My website is running online with another domain using framset so is it somewhere affecting on search index & ranking. My parent website is http://www.battle cancer.com and using <frameset frameborder=0 framespacing=0 border=0 rows="100%,*"noresize> <frame name="frame" src="http://www.battle-cancer.com" noresize></frameset> It running online with the http://www.elimaysupplements.com/.

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• Subterranean IL: The ThreadLocal type

  - by Simon Cooper

  I came across ThreadLocal<T> while I was researching ConcurrentBag. To look at it, it doesn't really make much sense. What's all those extra Cn classes doing in there? Why is there a GenericHolder<T,U,V,W> class? What's going on? However, digging deeper, it's a rather ingenious solution to a tricky problem. Thread statics Declaring that a variable is thread static, that is, values assigned and read from the field is specific to the thread doing the reading, is quite easy in .NET: [ThreadStatic] private static string s_ThreadStaticField; ThreadStaticAttribute is not a pseudo-custom attribute; it is compiled as a normal attribute, but the CLR has in-built magic, activated by that attribute, to redirect accesses to the field based on the executing thread's identity. TheadStaticAttribute provides a simple solution when you want to use a single field as thread-static. What if you want to create an arbitary number of thread static variables at runtime? Thread-static fields can only be declared, and are fixed, at compile time. Prior to .NET 4, you only had one solution - thread local data slots. This is a lesser-known function of Thread that has existed since .NET 1.1: LocalDataStoreSlot threadSlot = Thread.AllocateNamedDataSlot("slot1"); string value = "foo"; Thread.SetData(threadSlot, value); string gettedValue = (string)Thread.GetData(threadSlot); Each instance of LocalStoreDataSlot mediates access to a single slot, and each slot acts like a separate thread-static field. As you can see, using thread data slots is quite cumbersome. You need to keep track of LocalDataStoreSlot objects, it's not obvious how instances of LocalDataStoreSlot correspond to individual thread-static variables, and it's not type safe. It's also relatively slow and complicated; the internal implementation consists of a whole series of classes hanging off a single thread-static field in Thread itself, using various arrays, lists, and locks for synchronization. ThreadLocal<T> is far simpler and easier to use. ThreadLocal ThreadLocal provides an abstraction around thread-static fields that allows it to be used just like any other class; it can be used as a replacement for a thread-static field, it can be used in a List<ThreadLocal<T>>, you can create as many as you need at runtime. So what does it do? It can't just have an instance-specific thread-static field, because thread-static fields have to be declared as static, and so shared between all instances of the declaring type. There's something else going on here. The values stored in instances of ThreadLocal<T> are stored in instantiations of the GenericHolder<T,U,V,W> class, which contains a single ThreadStatic field (s_value) to store the actual value. This class is then instantiated with various combinations of the Cn types for generic arguments. In .NET, each separate instantiation of a generic type has its own static state. For example, GenericHolder<int,C0,C1,C2> has a completely separate s_value field to GenericHolder<int,C1,C14,C1>. This feature is (ab)used by ThreadLocal to emulate instance thread-static fields. Every time an instance of ThreadLocal is constructed, it is assigned a unique number from the static s_currentTypeId field using Interlocked.Increment, in the FindNextTypeIndex method. The hexadecimal representation of that number then defines the specific Cn types that instantiates the GenericHolder class. That instantiation is therefore 'owned' by that instance of ThreadLocal. This gives each instance of ThreadLocal its own ThreadStatic field through a specific unique instantiation of the GenericHolder class. Although GenericHolder has four type variables, the first one is always instantiated to the type stored in the ThreadLocal<T>. This gives three free type variables, each of which can be instantiated to one of 16 types (C0 to C15). This puts an upper limit of 4096 (163) on the number of ThreadLocal<T> instances that can be created for each value of T. That is, there can be a maximum of 4096 instances of ThreadLocal<string>, and separately a maximum of 4096 instances of ThreadLocal<object>, etc. However, there is an upper limit of 16384 enforced on the total number of ThreadLocal instances in the AppDomain. This is to stop too much memory being used by thousands of instantiations of GenericHolder<T,U,V,W>, as once a type is loaded into an AppDomain it cannot be unloaded, and will continue to sit there taking up memory until the AppDomain is unloaded. The total number of ThreadLocal instances created is tracked by the ThreadLocalGlobalCounter class. So what happens when either limit is reached? Firstly, to try and stop this limit being reached, it recycles GenericHolder type indexes of ThreadLocal instances that get disposed using the s_availableIndices concurrent stack. This allows GenericHolder instantiations of disposed ThreadLocal instances to be re-used. But if there aren't any available instantiations, then ThreadLocal falls back on a standard thread local slot using TLSHolder. This makes it very important to dispose of your ThreadLocal instances if you'll be using lots of them, so the type instantiations can be recycled. The previous way of creating arbitary thread-static variables, thread data slots, was slow, clunky, and hard to use. In comparison, ThreadLocal can be used just like any other type, and each instance appears from the outside to be a non-static thread-static variable. It does this by using the CLR type system to assign each instance of ThreadLocal its own instantiated type containing a thread-static field, and so delegating a lot of the bookkeeping that thread data slots had to do to the CLR type system itself! That's a very clever use of the CLR type system.

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• What has Ubuntu contributed to the Linux Kernel?

  - by Luis Alvarado

  This question is similar to this one: What unique enhancements and features has Ubuntu brought to the Linux Community but in this case it is directed towards what has Ubuntu contributed to the official Linux Kernel. For example, many times I hear about Intel contributing to patches for the Linux Kernel like the RC6 latest patches and any other related to the recent Sandy/Ivy Bridges. In another group, Android did an upstream patch and a lot of ARM patches have also come to the Linux Kernel. I have seeing only a small percent of companies and groups that have contributed to the Linux Kernel (http://kernel.org) but I want to know, since the beginning of Ubuntu till now, what has Ubuntu contributed to the Linux Kernel in regards to any aspect of the kernel. For Kernel information I typically go to http://kernelnewbies.org and http://kernel.org

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• PanelGridLayout - A Layout Revolution

  - by Duncan Mills

  With the most recent 11.1.2 patchset (11.1.2.3) there has been a lot of excitement around ADF Essentials (and rightly so), however, in all the fuss I didn't want an even more significant change to get missed - yes you read that correctly, a more significant change! I'm talking about the new panelGridLayout component, I can confidently say that this one of the most revolutionary components that we've introduced in 11g, even though it sounds rather boring. To be totally accurate, panelGrid was introduced in 11.1.2.2 but without any presence in the component palette or other design time support, so it was largely missed unless you read the release notes. However in this latest patchset it's finally front and center. Its time to explore - we (really) need to talk about layout.  Let's face it,with ADF Faces rich client, layout is a rather arcane pursuit, once you are a layout master, all bow before you, but it's more of an art than a science, and it is often, in fact, way too difficult to achieve what should (apparently) be a pretty simple. Here's a great example, it's a homework assignment I set for folks I'm teaching this stuff to:  The requirements for this layout are: The header is 80px high, the footer is 30px. These are both fixed.  The first section of the header containing the logo is 180px wide The logo is centered within the top left hand corner of the header  The title text is start aligned in the center zone of the header and will wrap if the browser window is narrowed. It should be aligned in the center of the vertical space  The about link is anchored to the right hand side of the browser with a 20px gap and again is center aligned vertically. It will move as the browser window is reduced in width. The footer has a right aligned copyright statement, again middle aligned within a 30px high footer region and with a 20px buffer to the right hand edge. It will move as the browser window is reduced in width. All remaining space is given to a central zone, which, in this case contains a panelSplitter. Expect that at some point in time you'll need a separate messages line in the center of the footer.  In the homework assigment I set I also stipulate that no inlineStyles can be used to control alignment or margins and no use of other taglibs (e.g. JSF HTML or Trinidad HTML). So, if we take this purist approach, that basic page layout (in my stock solution) requires 3 panelStretchLayouts, 5 panelGroupLayouts and 4 spacers - not including the spacer I use for the logo and the contents of the central zone splitter - phew! The point is that even a seemingly simple layout needs a bit of thinking about, particulatly when you consider strechting and browser re-size behavior. In fact, this little sample actually teaches you much of what you need to know to become vaguely competant at layouts in the framework. The underlying result of "the way things are" is that most of us reach for panelStretchLayout before even finishing the first sip of coffee as we embark on a new page design. In fact most pages you will see in any moderately complex ADF page will basically be nested panelStretchLayouts and panelGroupLayouts, sometimes many, many levels deep. So this is a problem, we've known this for some time and now we have a good solution. (I should point out that the oft-used Trinidad trh tags are not a particularly good solution as you're tie-ing yourself to an HTML table based layout in that case with a host of attendent issues in resize and bi-di behavior, but I digress.) So, tadaaa, I give to you panelGridLayout. PanelGrid, as the name suggests takes a grid like (dare I say slightly gridbag-like) approach to layout, dividing your layout into rows and colums with margins, sizing, stretch behaviour, colspans and rowspans all rolled in, all without the use of inlineStyle. As such, it provides for a much more powerful and consise way of defining a layout such as the one above that is actually simpler and much more logical to design. The basic building blocks are the panelGridLayout itself, gridRow and gridCell. Your content sits inside the cells inside the rows, all helpfully allowing both streching, valign and halign definitions without the need to nest further panelGroupLayouts. So much simpler!  If I break down the homework example above my nested comglomorate of 12 containers and spacers can be condensed down into a single panelGrid with 3 rows and 5 cell definitions (39 lines of source reduced to 24 in the case of the sample). What's more, the actual runtime representation in the browser DOM is much, much simpler, and clean, with basically one DIV per cell (Note that just because the panelGridLayout semantics looks like an HTML table does not mean that it's rendered that way!) . Another hidden benefit is the runtime cost. Because we can use a single layout to achieve much more complex geometries the client side layout code inside the browser is having to work a lot less. This will be a real benefit if your application needs to run on lower powered clients such as netbooks or tablets. So, it's time, if you're on 11.1.2.2 or above, to smile warmly at your panelStretchLayouts, wrap the blanket around it's knees and wheel it off to the Sunset Retirement Home for a well deserved rest. There's a new kid on the block and it wants to be your friend. 

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• Bandwidth Problem in Terminal?

  - by Rob Barker

  I'm trying to install the Mac cursors to Ubuntu 12.04 but i get this error when using the wget command in Terminal. ubuntu@ubuntu:~$ wget -O mac-cursors.zip http://dl.dropbox.com/u/53319850/NoobsLab.com/mac-cursors.zip --2012-12-09 16:31:17-- http://dl.dropbox.com/u/53319850/NoobsLab.com/mac-cursors.zip Resolving dl.dropbox.com (dl.dropbox.com)... 23.21.195.136, 23.23.139.153, 107.20.134.231, ... Connecting to dl.dropbox.com (dl.dropbox.com)|23.21.195.136|:80... connected. HTTP request sent, awaiting response... 509 Bandwidth Error 2012-12-09 16:31:18 ERROR 509: Bandwidth Error. Can someone tell me what this means please, and a possible workaround? Thanks very much.

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• When to use identity comparison instead of equals?

  - by maaartinus

  I wonder why would anybody want to use identity comparison for fields in equals, like here (Java syntax): class C { private A a; public boolean equals(Object other) { // standard boring prelude if (other==this) return true; if (other==null) return false; if (other.getClass() != this.getClass()) return false; C c = (C) other; // the relevant part if (c.a != this.a) return false; // more tests... and then return true; } // getter, setters, hashCode, ... } Using == is a bit faster than equals and a bit shorter (due to no need for null tests), too, but in what cases (if any) you'd say it's really better to use == for fields inside equals?

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• cowbuilder --create --distribution lucid fails

  - by Daenyth

  I'm trying to create a build environment for Lucid, and calling cowbuilder --create --distribution lucid fails with the messages below: Get:1 http://us-east-1.ec2.archive.ubuntu.com lucid Release.gpg [189B] Hit http://us-east-1.ec2.archive.ubuntu.com lucid Release Hit http://us-east-1.ec2.archive.ubuntu.com lucid/main Packages Fetched 189B in 0s (2376B/s) Reading package lists... I: Obtaining the cached apt archive contents Reading package lists... Building dependency tree... 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. Reading package lists... Building dependency tree... apt is already the newest version. Package cowdancer is not available, but is referred to by another package. This may mean that the package is missing, has been obsoleted, or is only available from another source E: Package cowdancer has no installation candidate I: unmounting dev/pts filesystem I: unmounting proc filesystem pbuilder create failed forking: rm -rf /opt/cowbuilder

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• FREE Technical Training on Windows Server 2012 Virtualization / Hyper-V / Private Cloud

  - by KeithMayer

  Microsoft Learning partnered with the Microsoft Server and Tools team and Developer and Platform Evangelism (DPE) to deliver the “Windows Server 2012 Jump Start: Preparing for the Datacenter Evolution” on June 20-21, 2012. Thanks to an amazing product and a phenomenal team effort, this event shattered two Jump Start records with 2,064 attendees from 103 different countries and extremely positive event feedback! We are excited to announce the release of the HD-quality video recordings available on TechNet Videos now!For complete details: http://aka.ms/TrainWS12JSIf I can help with any other learning topics, please feel free to connect with me and let me know!HTH,Keith http://keithmayer.com | Twitter: @KeithMayer | LinkedIn: http://linkedin.com/in/KeithM

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• Remove Kernel 3.1

  - by chazdg

  Is there a way to remove kernel 3.1 from Oneiric? I downloaded and upgraded to 3.1 with these instructions: Open the terminal and run these two commands for both 32-bit and 64-bit versions of Ubuntu 11.10/11.04: wget http://kernel.ubuntu.com/~kernel-ppa...241006_all.deb sudo dpkg -i linux-headers-3.1.0-030100_3.1.0-030100.201110241006_all.deb Ubuntu (64-bit) For Ubuntu 11.10/11.04 (64-bit), issue these commands: wget http://kernel.ubuntu.com/~kernel-ppa...1006_amd64.deb sudo dpkg -i linux-headers-3.1.0-030100-generic_3.1.0-030100.201110241006_amd64.deb wget http://kernel.ubuntu.com/~kernel-ppa...1006_amd64.deb sudo dpkg -i linux-image-3.1.0-030100-generic_3.1.0-030100.201110241006_amd64.deb Everything went well. I was able to reboot quickly, but Firefox and Chrome constantly crash with Kernel 3.1. I am using Gnome 3.2 and saw improvement with 3.0.0.13 provided by ppa. Any help with 3.1 or just removing it would be helpful. Thanks to all that reply.

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• Facebook Game database design

  - by facebook-100000781341887

  Hi, I'm currently develop a facebook mafia like PHP game(of course, a light weight version), here is a simplify database(MySQL) of the game id-a <int3> <for index> uid <chr15> <facebook uid> HP <int3> <health point> exp <int3> <experience> money <int3> <money> list_inventory <chr5> <the inventory user hold...some special here, talk next> ... and 20 other fields just like reputation, num of combat... *the number next to the type is the size(byte) of the type For the list_inventory, there have 40 inventorys in my game, (actually, I have 5 these kind of list in my database), and each user can only contain 1 qty of each inventory, therefore, I assign 5 char for this field and each bit of char as 1 item(5 char * 8 bit = 40 slot), and I will do some manipulation by PHP to extract the data from this 5 byte. OK, I was thinking on this, if this game contains 100,000 user, and only 10% are active, therefore, if use my method, for the space use, 5 byte * 100,000 = 500 KB if I use another method, create a table user_hold_inventory, if the user have the inventory, then insert a record into this table, so, for 10,000 active user, I assume they got all item, but for other, I assume they got no item, here is the fields of the new table id-b <int3> <for index> id-a <int3> <id of the user table> inv_no <int1> <inventory that user hold> for the space use, ([id] (3+3) byte + [inv_no] 1 byte ) * [active user] 10,000 * [all inventory] * 40 = 2.8 MB seems method 2 have use more space, but it consume less CPU power. Please comment these 2 method or please correct me if there have another better method rather than what I think. Another question is, my database contain 26 fields, but I counted 5 of them are not change frquently, should I need to separate it on the other table or not? So many words, thanks for reading :)

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• Java: Reflection Packet Builder using getField()

  - by Matchlighter

  So I just finished writing a packet builder that dynamically loads data into a data stream which is then sent out. Each builder operates by finding fields in its class (and its superclasses) that are marked with an @data annotation. Upon finishing the builder, I remembered that getFields() does not return in "any specific order". I quite like my builder because it allows for quite simple, yet hard-typed packets. Could this implementation be a problem? What would be the best next step to keep the simplicity - do alphabetical sorting of fields?

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• Latest MapViewer 11g patch released

  - by lqian

  Hi,   We are glad to announce that the latest MapViewer 11g patch (version 11.1.1.7.2) has just been uploaded to OTN in the usual place. This is mostly a bug fix release, with several noticeable enhancements to the HTML5 API. For the full release note, please check it here:  http://download.oracle.com/otndocs/products/mapviewer/mapviewer_11p6_2_readme.txt In a related note, our hosted mapping service (elocation.oracle.com) has also updated its MapViewer server to this release. Finally, the public demo server running all the standard mapViewer demos have been patched to 11.1.1.7.2 as well. So make sure to give the demos a spin! http://slc02okf.oracle.com    :  show cases some of the main HTML5 mapping demos http://slc02okf.oracle.com/mvdemo : the MapViewer Samples & Demos Application.  Thanks LJ 

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• Port 21 will not open. status is closed. forward port 21 to new domains.

  - by Bob Swaggerty

  I am having a problem opening port 21 on my Linux Ubuntu server. No matter what i do, i can not get my status to change from closed to open. Here is a recent iptables command i used and the result iptables -A INPUT -p tcp -m tcp --dport 21 -j ACCEPT nmap -p21-22,25,80,443 CCR1 Starting Nmap 4.53 ( http://insecure.org ) at 2012-06-19 03:13 CDT Interesting ports on CCR1.chennaichristianradio.com (5.10.69.98): PORT STATE SERVICE 21/tcp closed ftp 22/tcp open ssh 25/tcp closed smtp 80/tcp open http 443/tcp closed https I also used commands from the advise from this forum http://www.cyberciti.biz/faq/iptables-open-ftp-port-21/ I need to open this for FTP access to the server, and ultimately I need to forward port 21 to 2 domains i am setting up. Thank you for any assistance you can provide -Bob Swaggerty

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• Good sites for sharing code snippets & pastes that you can share links to?

  - by acidzombie24

  I know there are site tools to check if your webpage is alive, has compression, etc but lets not get into that. What are useful sites to paste code in and to share links to it? The three i know are http://codepad.org/ shows source and runs code online http://www.pastie.org/ share source with syntax highlighting http://jsfiddle.net/ great for JS help or for the occasional test. What else do you know of? One answer per question. I'll let lints and validators slide since you do paste code into them. Mention a weakness if you do know one so others wont be surprised or disappointed.

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• How to install GIMP 2.7?

  - by Bucic

  Here I ask this question since Beta 2 is usable and this question would come up sooner then later ;) After issuing the standard sudo add-apt-repository ppa:matthaeus123/mrw-gimp-svn sudo apt-get update I get W: Failed to fetch http://ppa.launchpad.net/matthaeus123/mrw-gimp-svn/ubuntu/dists/precise/main/source/Sources 404 Not Found W: Failed to fetch http://ppa.launchpad.net/matthaeus123/mrw-gimp-svn/ubuntu/dists/precise/main/binary-amd64/Packages 404 Not Found W: Failed to fetch http://ppa.launchpad.net/matthaeus123/mrw-gimp-svn/ubuntu/dists /precise/main/binary-i386/Packages 404 Not Found E: Some index files failed to download. They have been ignored, or old ones used instead. Is there any way to get around this. Excluding compiling from source as it usually introduces even more multilevel errors.

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• iFrame ads from site to site

  - by user28327

  How I can make the iFrame ads from site A to site B not like this: <iframe src="http://www.site.com"></iframe> Example: site A <script type="text/javascript"><!-- google_ad_client = "ca-pub-3434343507"; /* site */ google_ad_slot = "343435270"; google_ad_width = 728; google_ad_height = 90; //--> </script> <script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"> </script> site B --iFrame-- <script type="text/javascript"><!-- google_ad_client = "ca-pub-3434343507"; /* site */ google_ad_slot = "343435270"; google_ad_width = 728; google_ad_height = 90; //--> </script> <script type="text/javascript" src="http://pagead2.googlesyndication.com/pagead/show_ads.js"> </script> --iFrame--

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