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• http sniffer not working in a LAN setting

  - by trinity

  Hi , I wrote a http sniffer program , first ran it in my standalone pc < fedora OS , and it worked well. And when i tried this in a LAN setting < bus-LAN , fedora OS again , and set the eth0 to promisc mode , the program captures only the URLs browsed by the system in which it is running , but not the ones browsed in neighbouring systems.. Am i missing something here.. i've heard people talk about " setting up subnets " , " use routers / additional ethernet cards " etc , but i dont really understand / know how to do / or even if i should be doing anything of that sort.. please help ..

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• Using Django Admin for a custom database solution

  - by Prashanth Ellina

  A client wants to have a simple intranet application to manage his process. He runs a Quarry and wishes to track number of loads delivered per day and associated activities. Since I knew about Django's excellent Admin interface, I figured I could define the "Schema" in models.py and have Django Admin generate the forms. I did exactly that and the result is not bad at all. I've been able to customize the look and feel to suit the client's taste. Some questions: Is Django Admin the right choice for such a use-case? Will I run to problems in the future due to flexibility of the framework? Is there a better framework out there specifically designed for this use-case (general Database management for small businesses)? I prefer ones written in Python since I can hack it up to customize. Thanks!

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• struct method linking

  - by James

  I'm updating some old code that has several POD structs that were getting zero'd out by memset (don't blame me...I didn't write this part). Part of the update changed some of them to classes that use private internal pointers that are now getting wiped out by the memset. So I added a [non-virtual] reset() method to the various structs and refactored the code to call that instead. One particular struct developed an "undefined reference to `blah::reset()'" error. Changing it from a struct to a class fixed the error. Calling nm on the .o file h, the mangled function names for that method look the same (whether it's a class or a struct). I'm using g++ 4.4.1, on Ubuntu. I hate the thought that this might be a compiler/linker bug, but I'm not sure what else it could be. Am I missing some fundamental difference between structs and classes? I thought the only meaningful ones were the public/private defaults and the way everyone thinks about them.

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• Extract string from string using Regex

  - by stacker

  I want to extract MasterPage value directive from a view page. I want the fastest way to do that, taking into account a very big aspx pages, and a very small ones. I think the best way is to do that with two stages: Extract the page directive section from the view (using Regex): <%@ Page Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage" %> Then, extract the value inside MasterPageFile attribute. The result needs to be: ~/Views/Shared/Site.Master. Can I have help from someone to implement this? I badly want to use only regex, but I don't Regex expert. Another thing, Do you think that Regex is the fastest way to do this?

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• Who does non-decimal bignums with floating radix point?

  - by boost

  Nice as the Tcl libraries math::bignum and math::bigfloat are, the middle ground between the two needs to be addressed. Namely, bignums which are in different radices and have a radix point. At present math::bignum only handles integers (afaict) and math::bigfloat won't let you specify different radices to math::bigfloat::fromstr (ditto). Does anyone know of a library, for any of the major scripting languages (e.g. Tcl, Perl, Python, Ruby, Lua) or less major ones (newLISP for example), which implements bignums in different radices with handling for radix point?

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• Naive Bayesian for Topic detection using "Bag of Words" approach

  - by AlgoMan

  I am trying to implement a naive bayseian approach to find the topic of a given document or stream of words. Is there are Naive Bayesian approach that i might be able to look up for this ? Also, i am trying to improve my dictionary as i go along. Initially, i have a bunch of words that map to a topics (hard-coded). Depending on the occurrence of the words other than the ones that are already mapped. And depending on the occurrences of these words i want to add them to the mappings, hence improving and learning about new words that map to topic. And also changing the probabilities of words. How should i go about doing this ? Is my approach the right one ? Which programming language would be best suited for the implementation ?

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• MS CRM - getting the field that caused a form save

  - by CraigF

  I have a MS CRM 4 form where when certain fields are changed, I need those fields to be written to an excel sheet. So, I edited the form field onchange event to call crmform.save() which triggers a plugin to run that writes the field value to a named range (1 cell) of an excel sheet. However, I don't know which field caused the save. Is there a way to get that information? (Not all fields on the form need to go to the excel sheet) If I use this: DynamicEntity target = (DynamicEntity)Context.InputParameters[ParameterName.Target]; I can look at specific fields, but I have no way of knowing which ones changed. Any suggestions?

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• Plain-English tutorial on artificial neural networks?

  - by Stuart

  I've Googled, StackOverflowed, everything, and I cannot seem to find a tutorial I can understand. I understand the concept of genetic algorithms, and how to implement them, (Though I haven't tried) but I cannot grasp the concept of neural networks. I know vaguely how they work... And that's about it. Could someone direct me to a tutorial that could help someone who has not even graduated middle school yet? Sure, I'm several years ahead of the majority of people my grade, but I don't understand summation, (which I apparently need if I don't want a simple binary output) vectors, and other things that I apparently should know. Is there a simple, bare-bones tutorial for neural networks? After I learn the basics, I'll proceed to more difficult ones. Preferably, they would be in Java. Thanks!

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• Visual Studio "Any CPU" target

  - by galets

  I have some confusion related to the .NET platform build options in VS 2008 Does anyone have a clear understanding what does "Any CPU" compilation target is and what sort of files it generates? I examined the output executable of this "Any CPU" build and found that they are (who would not see that coming!) the x86 executables. So, is there any the difference between targeting executable to x86 vs "Any CPU"? Another thing that I noticed, is that managed C++ projects do not have this platform as option. I'm wondering why is that. Does that mean that my suspicion about "Any CPU" executables being plain 32-bit ones is right?

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• How can I modify complex command-line argument strings in Perl?

  - by mmccoo

  I have a command line that I'm trying to modify to remove some of the arguments. What makes this complex is that I can have nested arguments. Say that I have this: $cmdline = "-a -xyz -a- -b -xyz -b- -a -xyz -a-" I have three different -xyz flags that are to be interpreted in two different contexts. One is the -a context and the other is the -b context. I want to remove the "a" -xyz's but leave the ones in the "b" -xyz. in the above case, I want: -a -a- -b -xyz -b- -a -a- Alternately, if I have: -a -123 -a- -b -xyz -b- -a -xyz -a-" I want: -a -123 -a- -a -xyz -a- -b -xyz -b- -a -a- It's this second case that I'm stuck on. How can I most effectively do this in Perl?

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• SharePoint web part not displaying for site readers

  - by gregenslow

  Hello - I've built a custom SharePoint 2010 web part and deployed it to the home page of a publishing site. It's a very simple web part that just displays items from a SP list in a drop down list. The web part works fine if I'm logged in as a site owner or a member but not if I'm just a reader. The web part doesn't render at all to readers. I don't get any of the web part chrome or title, just nothing. I have other web parts (out-of-box ones) in the same zone that are displaying fine so it's not an issue of the whole zone not displaying. As a reader, I can still view the list directly so it doesn't appear to be a problem with list permissions. My web parts are being deployed as a farm solution, not sand-boxed and the assembly is being deployed to the GAC. I feel like I must be missing something simple here but I'm stumped. Help.

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• How should I handle pages that move to a new url with regards to search engines?

  - by Anders Juul

  Hi all, I have done some refactoring on a asp.net mvc application already deployed to a live web site. Among the refactoring was moving functionality to a new controller, causing some urls to change. Shortly after the various search engine robots start hammering the old urls. What is the right way to handle this in general? Ignore it? In time the SEs should find out that they get nothing but 400 from the old urls. Block old urls with robots.txt? Continue to catch the old urls, then redirect to new ones? Users navigating the site would never get the redirection as the urls are updated through-out the new version of the site. I see it as garbage code - unless it could be handled by some fancy routing? Other? As always, all comments welcome... Thanks, Anders, Denmark

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• In need of a semantic thesaurus as a SAS

  - by Roy Peleg

  Hello, I'm currently building a web application. In one of it's key processes the application need to match short phrases to other similar ones available in the DB. The application needs to be able to match the phrase: Looking for a second hand car in good shape To other phrases which basically have the same meaning but use different wording, such as: 2nd hand car in great condition needed or searching for a used car in optimal quality The phrases are length limited (say 250 chars), user generated & unstructured. I'm in need of a service / company / some solution which can help / do these connections for me. Can anyone give any ideas? Thanks, Roy

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• List of Selenium RC browser launchers

  - by jacksenechal

  I am trying to find a full list of Selenium RC browser launchers. So far I've not been able to find any documentation that lists them all. I've gathered the following ones from various sources. *iexplore - Launches IE *firefox - Launches Firefox *safari - Launches Safari *opera - Launches Opera *chrome - Launches special Firefox profile with elevated security privileges, to bypass Javascript security errors *iehta - Launches IE with elevated security privileges *piiexplore - Launches IE in proxy injection mode *pifirefox - Launches Firefox in proxy injection mode *custom - Launches your own custom browser executable Are there any others lurking out there? Is there any source of documentation on how each one is used?

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• Progressive Enhancement with box-shadow

  - by toby

  I would like to use WebKit's box-shadow css property for a little drop-down. The code would look like: .drop_down{ -webkit-box-shadow: 1px 1px 4px #888; box-shadow: 1px 1px 4px #888; } However, for browsers that do not have this capability, I would like to use borders to approximate this drop shadow, like so: .drop_down{ border-top: 1px solid #bbb; border-left: 1px solid #bbb; border-right: 2px solid #bbb; border-bottom: 2px solid #bbb; } The problem is, I don't want the border-based shadow to show up for the browsers that DO support box-shadow. I would like to avoid browser sniffing because I assume it's hard to cover all the cases. What is the simplest way to do this? I prefer a javascript-less solution, but I will consider simple javascript-based ones too.

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• Sharepoint Foundation 2010 development environment installation problems

  - by Robert Koritnik

  I'm having problems installing development machine for Sharepoint (Foundation) 2010. This is what I did so far on the same machine: Installed a clean Windows 7 x64 with 4GB of RAM without being part of any domain. Just a simple standalone machine. Enabled IIS related features as described here except IIS6 related ones (two of them) Installed SQL Server 2008 R2 Development Edition (DB Engine and Writer being enabled but not SQL Agent) Installed Visual Studio 2010 Premium Started installing Sharepoint Foundation 2010 with first extracting files, changing config to enable Windows 7 installation and then installed it as Server Farm (then Complete) to avoid installing SQL Express. Created a separate SPF_CONFIG local user with Logon on as a service right. Opened SPF Management Shell and run New-SPConfigurationDatabase so I am able to use a non-domain username (SPF_CONFIG that I created in the previous step) But all I get is this: The outcome after this error is: Database Sharepoint2010Config is created User SPF_CONFIG is added to SQL Server and attached to this newly created database as dbowner Checking SQL server security logins this user has following rights: dbcreator securityadmin public

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• mysql select from a table depending on in which table the data is in

  - by user253530

  I have 3 tables holding products for a restaurant. Products that reside in the bar, food and ingredients. I use php and mysql. I have another table that holds information about the orders that have been made so far. There are 2 fields, the most important ones, that hold information about the id of the product and the type (from the bar, from the kitchen or from the ingredients). I was thinking to write the sql query like below to use either the table for bar products, kitchen or ingredients but it doesn't work. Basically the second table on join must be either "bar", "produse" or "stoc". SELECT K.nume, COUNT(K.cantitate) as cantitate, SUM(K.pret) as pret, P.nume as NumeProduse FROM `clienti_fideli` as K JOIN if(P.tip,bar,produse) AS P ON K.produs = P.id_prod WHERE K.masa=18 and K.nume LIKE 'livrari-la-domiciliu' GROUP BY NumeProduse

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• Free SWF Obfuscator

  - by Cyclone

  Does anybody know of a free flash obfuscator? All I can find are commercial ones with free trials. I have done numerous google searches, and have been unable to find what I am looking for. I know that obfuscators do not make your swf hack proof, but they make things harder. Things I am looking for in an obfuscator: Unlimited obfuscations No time limit No watermark (or on the left side only! Right side is no good, same with center) Able to publish work (no special player needed other than standard flashplayer) I really was surprised to see how hard it was to find a good obfuscator (tried encoder, protection, etc. instead as well) and how easy it is to find a decompiler.... It is imperative that my code be protected, at least partially, to discourage the hacking of my game.

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• Generic Text Only printer driver mangles control codes

  - by Terry

  If an escape character (or most other characters < 0x20) is sent to the generic / text only printer it gets printed as a period. Using the code in the WinDDK is it possible to 'correct' this behaviour so that it passes it through unmodified? The general scenario for this is that some application ('user app') outputs a document to a windows printer. My application requires this data in plain text form and so what I do is run a generic / text only printer that talks to a virtual com port. This generally works fine except where the 'user app' outputs binary data to the print queue without using the correct mechanism (which seems to work fine on some printer drivers, such as the Epson POS ones, but not the generic / text only one). I've tried changing the print processor selection without success and also tried looking at the gtt files to see if I could readily map in these characters as though they were printable, but the minidriver tool won't let me do that. Any suggestions?

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• Remove files from Bazaar

  - by Kristopher Ives

  I'm using Bazaar (bzr) to keep source code for a website updated, but we've ran into a problem when we remove files from version control. The files we are removing are ones we never intended to version to begin with. When this happens we use bzr rm --keep to remove the file from version control, but keep the file in the file system. Doing a bzr push or bzr pull results in the removed file(s) being removed on the other branches (other sites that use our code) We need a way to make sure that a bzr push or bzr pull doesn't actually remove those from the working copy. Anyone have any ideas?

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• Millions of anonymous ASP.Net profiles!?

  - by Mantorok

  Hi all, some advice needed! Our website receives approximately 50,000 hits a day, and we use anonymous ASP.Net membership profiles/users, this is resulting in millions (4.5m currently) of "active" profiles and the database is 'crawling', we have a nightly task that cleans up all the inactive ones. There is no way that we have 4.5m unique visitors (our county population is only 1/2 million), could this be caused by crawlers and spiders? Also, if we have to live with this huge number of profiles is there anyway of optimising the DB? Thanks Kev

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• "Could not load file or assembly 'XXX.YYY' or one of its dependencies. The system cannot find the file specified."

  - by Niall Collins

  I have a .net visual studio solution with a number of projects (class libraries and a web application). I did some refractoring which moved files between projects, created new projects, deleted ones not being used and renamed some existing projects. The solution builds without an issue but when I run the web application, the following exception occurs: "Could not load file or assembly 'XXX.YYY' or one of its dependencies. The system cannot find the file specified." The project called XXX.YYY which was deleted in the refractoring outputed a dll called XXX.YYY. But this isnt used anywhere in the application. I deleted the web applications obj directory and bin folder and rebuild but it still occurs. Anyone have any ideas when this might be occurring, any tips??

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• will paginate, nested routes, ruby, rails

  - by Sam

  I'm trying to get will paginate to link to my nested route instead of the regular posts variable. I know I'm supposed to pass some params to paginate but I don't know how to pass them. Basically there is an array stored in @posts and the other param paginate has access to is category_id. The nested route is /category/1/posts but hitting next and previous on will paginate returns a url like this posts?page=1&category_id=7. <%= will_paginate @most_recent_posts "What do I do here?" %> This is the result of Yannis's answer: In your controller you can do: @posts = @category.posts.paginate And in your view: <%= will_paginate(@post) %> Doing this comes up with the following URL posts?page=2&post_category_id=athlete_management routes.rb #there are more routes but these are the relevant ones map.resources :posts map.resources :post_categories, :has_many => :posts solution map.resources :post_categories do |post_category| post_category.resources :posts end map.resources :posts Had to declare the resource after the block Thanks stephen!

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• Multiple Condition Coverage Testing

  - by David Relihan

  Hi Folks, When using the White Box method of testing called Multiple Condition Coverage, do we take all conditional statements or just the ones with multiple conditions? Now maybe the clues in the name but I'm not sure. So if I have the following method void someMethod() { if(a && b && (c || (d && e)) ) //Conditional A { } if(z && q) // Conditional B { } } Do I generate the truth table for just "Conditional A", or do I also do Conditional B? Thanks,

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• Unlocking Locked Out accounts using PowerShell (not with Quest AD cmdlets)

  - by Jonny

  I'm writing a GUI tool using PowerShell that is able to do most AD related tasks with just a user name and button click. I've done all the usual ones (Create / Remove Users, Create / Remove Security & Distribution Groups, Resetting Passwords, etc) but can't find away of unlocking a "Locked Out" account. I'm trying to do this without using Quest AD cmdlets as I want a more stand alone solution. So I'm wondering whether is possible with plain PowerShell (1.0 or 2.0) in a Windows 2003 Domain. Many thanks.

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