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• What does the following SPF record allow?

  - by Pasta

  v=spf1 ip4:211.121.22.56 a mx a:server.hostname.com ~all My understanding is it allows the following to send out emails: ip4: 211.121.22.56 a: A record (where website is hosted) mx: whatever the MX record says a: this server name And nothing other than the above 4 places Am I correct?

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• remove specific field after clicking back in browser or using history.go(-1)

  - by Y.G.J

  i have a form with a capacha, if the capacha was entered wrong, after submit the page is doing a "history.go(-1)" and all fields include the capacha input are back on the screen right now i have a js that clear that - but now that i need it in several places, i want to know if it possible to clear a form field after back with something related to the html form or what ever thanks

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• Is it possible to sync issues between JIRA and SourceForge Enterprise Ediition?

  - by Gavin Clarke

  For various complicated annoying reasons which I won't go into here I need to track a project in both JIRA and SourceForge EE. Because I don't want people to have maintian trackers/issues in two places I was wondering if there is a way to automatically sync the two systems. The syncing would need to reflect changes in state as well as creation of new issues.

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• callback in android?

  - by androidbase Praveen

  in android application development, i frequently go through the word "CALLBACK" in many places. i want to know want it means to tell us technically. and how i can manage the callback of the applications. i would need a guidance to understand about it....

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• How to safely let users run arbitrary Ruby code?

  - by igul222

  I realize this sounds a little crazy, but I'm working on a project for which I need a server to run user-provided Ruby code and return the result. I'm looking to prevent something like this: system("rm -rf /") eval("something_evil") # etc... I'm sure there must be some reasonably safe way to do this, as it already exists at places like tryruby.org. Any help is greatly appreciated, thanks!

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• Format Document (Ctrl+K,Ctrl+D) equivalent in Visual Studio 6

  - by Shevek

  Is there any equivalent of the VS7/8/9/10 Edit - Advanced - Format Document (Ctrl+K,Ctrl+D) function in Visual Studio 6 (specifically VB6)? I've inherited an old codebase and it is messy in places so I'd like to tidy it up.

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• php 5.1.6 json_encode and codeigniter

  - by NachoF

  Im building a codeigniter app which uses json_encode to provide ajax data in many places... today I learned that the server has php 5.1.6 which doesnt support this method (or json_decode).. what can I do?? please help.

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• Using NULL in MySQL

  - by JPro

  The data in my dabatase comes from an external source and where ever there is no data passed, I keep NULL in those places. Can anyone tell me if there are any implications in using NULL to represent empty value? Should I follow some other convention like 'data_not_available'? or something like that? Can anyone suggest?

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• Where a developer can sell / donate his time?

  - by kyrisu

  Recently business isn't good and was wondering what are your favourite places where you can sell your time working on a projects (you get specification / idea - you crank code - you get paid :) ) (I don't mean selling your own apps, just working for someone else) or where you can donate your time (you get specification - you crank code - you feel good :D) (I've heard about cranking code on weekends for charities in US but I'm from Poland so I was thinking about something not location specific)

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• add commas using String.Format for number and

  - by raklos

  Using String.Format how can i ensure all numbers have commas after every 3 digits eg 23000 = "23,000" and that 0 returns "0". String.Format("{0:n}", 0); //gives 0.00 which i dont want. I dont want any decimal places, all numbers will be integers.

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• What is the logic of Lightbox 2 on where to position the popup?

  - by oo

  What is the logic of Lightbox 2 on where to position the popup? It seems that when using Firefox or Chrome it shows up in different places on different pages. Is there any setting to have it show at the same height on every page for consistency? What is the CSS or logic it's using to determine positioning?

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• Launch an activity only the first time the application starts

  - by benjamin schultz

  I need a way to detect if this is the first time the user is ever opening the application, if so, start an activity. Then all previous application launches wouldn't start that activity. I've read in a few places about using preferences to accomplish this. Anyone got any ideas?

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• What is the correct way to use variables in JQuery?

  - by Jared Christensen

  I want to reference an element once and then reuse it threw out my code but I'm not sure the correct way. Below is what I tried but it only works in some places. $(document).ready(function() { var image = $("#content img"); image.wrap("<span />"); // Works! image.hover(function(){}, function(){}); // Does not work? });

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• Insert commas in a number for formatting

  - by gameover

  I need a way to convert a number into formatted way by inserting comma at suitable places. Can it be done using regex? Example: 12345 => 12,345 1234567 =>1,234,567

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• Windows 7 phone market place vs xbox market place?

  - by Curtis White

  When making games for windows 7 phone will there be separate places for XNA based games and silverlight games? I'm curious how this will work. Are all XNA based games going to work out of box? How would someone differentiate an app developed specifically for phone vs just a port?

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• What is operator<< <> in C++?

  - by Austin Hyde

  I have seen this in a few places, and to confirm I wasn't crazy, I looked for other examples. Apparently this can come in other flavors as well, eg operator+ <>. However, nothing I have seen anywhere mentions what it is, so I thought I'd ask. It's not the easiest thing to google operator<< <>( :-)

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• About import statement in Java

  - by user198729

  test.java: import javax.media; Which directories are javax.media searched from? I suppose those in CLASSPATH specified by javac -cp will of course be searched. But will it also search in the directory where test.java locates? And are there any other possible places that will be searched?

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• Finding databases for use in applications

  - by JonF

  Does anyone have some recommendations on how I can find databases for random things that I might want to use in my application. For example, a database of zip code locations, area code cities, car engines, IP address locations, or whatever. I'm just asking generally when you decide you need a bunch of data where are some good places to start looking other than google?

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• Favourite Open Source iPhone apps

  - by objektivs

  I'm an aspiring iPhone developer and I'm looking for a significant OS iPhone codebase to see how others build apps. I'm especially interested in examples exhibiting some or all of the following: business/enterprise apps apps that interact with web services apps utilising XML apps using oauth or other authenticate Personally, I'm less interested in games, but feel free to include any examples for the benefit of others. I'm asking here because the usual places I've been looking (i.e. sourceforge) don't seem to have the kind of examples I'm looking for.

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• Java Download Concurrent Data

  - by xger86x

  Hi, i'm developing an app which download map tiles around different places in a city. To do this, i have one thread for each place in which i select the tiles and create a thread to download each. Well, the question is how to avoid creating a thread for a tile that already exists in the thread pool. Should not just check if the file exists, since it is possible that the thread for that tile already exists (other place already need that tile) but the file has not been created- Any idea? Thanks

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• iPhone keeps going into dim/sleep mode even with the proper API calls.

  - by Kyle

  I call: [[ UIApplication sharedApplication ] setIdleTimerDisabled: YES ] on the applicationDidFinishLaunching event.. I set a breakpoint on it, which fires so I know it's getting called.. I've also called this function in other places as well.. Basically, a 3G iPhone will still go into sleep mode, but my 3GS won't. Has anyone seen this behavior before? Both are running the latest OS versions. Thanks for reading!

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• trouble setting node['chef-client']['interval']

  - by atiniir

  I've searched many places and haven't get found the answer to this, I suspect I'm missing something either fundamental or basic (maybe both) I'm using the chef-client::windows_service recipe and trying to set the interval and can't seem to sort it out. I've tried at the role level with: { "defaults": { "chef_client": { "interval":15 } }, "overrides":{ } } and at the node level with: { "chef_client": { "interval":25 }, "tags":[] } but the interval on the node is still 1800 (default)

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• How to create network interface programatically?

  - by user158625

  How can i add a network interface so that when i go to "My Network Places" too see "Local Area Connection" and the new added connection? I am referring to Windows XP. Thanks.

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• Where do I place a set_locale in Kohana PHP framework?

  - by janoChen

  In the following tutorial: http://pinoytech.org/blog/post/Kohana-2.4-I18N-internationalization-and-localization-Library the author says: I'd put it in a Base Controller so that all Controllers inherit it. this is the code: I18n::set_locale('tl_PH'); I tried placing it in all the controller and places I could but is not working. Which is the exact place where I should place it?

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• Why are Ruby projects so dominant at Github?

  - by timepilot

  Ruby is the most popular language at Github by far. Compare that with the questions at Stack Overflow or the TIOBE index. What is the reason for this difference in relative popularity in different places?

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