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  • linux firewall in c

    - by asha
    i m implementing a firewall for linux,i want to block packets using loadable kernal module(lkm). please help me how can i do it ? i just know that it can be done by lkm by using some function in it,like init(),clean_up. i want to know how to use DROP,ACCEPT in blocking function within lkm. i want to do it without iptable command.

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  • Is there a web application equivalent of Hypercard?

    - by Gabriel Cuvillier
    Recently, I found an interesting Wiki/CMS/Database hybrid called Wagn, where the most important unit of information is the 'Card'. That terminology immediately made me think of Hypercard. As expected, there is some "Hypercard-ness" in that application. Do you know of other web applications/frameworks with that "Hypercard-ness" thing, or if its successor still must be invented? Note: I insist on web applications because I already know the desktop ones.

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  • Parse int to string with stringstream

    - by SoulBeaver
    Well! I feel really stupid for this question, and I wholly don't mind if I get downvoted for this, but I guess I wouldn't be posting this if I had not at least made an earnest attempt at looking for the solution. I'm currently working on Euler Problem 4, finding the largest palindromic number of two three-digit numbers [100..999]. As you might guess, I'm at the part where I have to work with the integer I made. I looked up a few sites and saw a few standards for converting an Int to a String, one of which included stringstream. So my code looked like this: // tempTotal is my int value I want converted. void toString( int tempTotal, string &str ) { ostringstream ss; // C++ Standard compliant method. ss << tempTotal; str = ss.str(); // Overwrite referenced value of given string. } and the function calling it was: else { toString( tempTotal, store ); cout << loop1 << " x " << loop2 << "= " << store << endl; } So far, so good. I can't really see an error in what I've written, but the output gives me the address to something. It stays constant, so I don't really know what the program is doing there. Secondly, I tried .ToString(), string.valueOf( tempTotal ), (string)tempTotal, or simply store = temptotal. All refused to work. When I simply tried doing an implicit cast with store = tempTotal, it didn't give me a value at all. When I tried checking output it literally printed nothing. I don't know if anything was copied into my string that simply isn't a printable character, or if the compiler just ignored it. I really don't know. So even though I feel this is a really, really lame question, I just have to ask: How do I convert that stupid integer to a string with the stringstream? The other tries are more or less irrelevant for me, I just really want to know why my stringstream solution isn't working.

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  • Performance Related features for migration from .net 2003 Framework 1.1 to .net 2008 framework 3.5?

    - by KuldipMCA
    I am work on VB.net 2003 Framework 1.1 for last 3.5 years in windows Application. We are currently migrating to VB.net 2008 framework 3.5, but i don't know about the features which related to ADO.net and which is important to performance. I know linq to SQL but our architecture is made in .net 2003 so we should follow this. Any features which is very important to enhance the performance?

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  • Save simple data in Magento's DB w/o Model

    - by Joseph Mastey
    I'm looking to save some data in the Magento database without hassling with creating a new EAV object (or even a DB table if I can avoid it). Is there any place that you all know about that Magento will let you store serialized data? If it matters, the data is a serialized set of SKUs that I need to retrieve. I know that I could create a new model, or possibly even create an attribute as a flag on each product, but those are both really overkill for my purposes. Thanks, Joe

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  • Online option calculator like Sitmo.com

    - by baraider
    I'd like to know the best way to create online calculator for stock options such as this site http://www.sitmo.com/live/OptionVanilla.html I can see it uses CGI, and I like to learn what other ways to achieve the same goals using other languages. If anyone has experience building it and can freelance, I'd like to know as well. Our site is running on LAMP.

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  • Google Bookmarks Accelerator for IE8

    - by MACHiNESMiTH
    To Editors: Sorry, I didnt realise the question thing till you pointed it out. Also I didn't know about the appengine tag, I'm assuming it was selected by mistake from that JS autosuggestion box (it usually happens with me, I run a P3) my apologies for that too. I've edited it now, if it doesnt work let me know. Hi all, I'm making (or at least trying to make) a Google bookmarks accelerator for IE8, but I keep running into "Internet Explorer could not install this accelerator. There was a problem with the Accelerator's information." Does anyone know why this is happening? Here is the code I've made <?xml version="1.0" encoding="UTF-8" ?> <os:openServiceDescription xmlns="http://www.microsoft.com/schemas/openservicedescription/1.0"> <os:homepageUrl>http://www.google.com/bookmarks</os:homepageUrl> <os:display> <os:description>Add this page to GoogleBookmarks</os:description> <os:name>Add to GoogleBookmarks</os:name> <os:icon>http://www.google.com/favicon.ico</os:icon> </os:display> <os:activity category="Bookmarks"> <os:activityAction context="document"> <os:execute method="get" action="http://www.google.com/bookmarks/mark?op=add&output=popup"> <os:parameter name="bkmk" value="{documentUrl}" /> <os:parameter name="title" value="{documentTitle}" /> <os:parameter name="annotation" value="{selection}" /> </os:execute> </os:activityAction> </os:activity> </os:openServiceDescription> These are the references I used: MSDN Developers Guide MSDN Format Specification Unofficial Google API (used as a look up so far) and yes i know that I cannot send document variables between schemes (HTTP - HTTPS, for example) or between servers in different security zones (Intranet - Internet etc) Also, if this is the wrong place, what are the recommended sites and/or forums for xml related posts? (not really questions - but more like full blown detailed rant like posts) Thanks

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  • Software to draw 3D geometry

    - by ilovekonoka
    Does anyone know any software that can draw 3D geometry like figures usually seen in computer graphics papers and articles(example: http://www.iquilezles.org/www/articles/sphereao/sphereao.htm)? I know it can be done in Inskcape or Illustrator but I'm not sure they're the only choices.

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  • What is the command line syntax to embed MPlayer in an app window in OS X?

    - by Chip
    I know the window ID, and I'm trying stuff like: mplayer -ontop -slave -quiet -wid 471165040 /t.mov mplayer -ontop -slave -quiet --window=471165040 /t.mov but nothing is working. (I know the window ID is correct) Otherwise, mplayer CLI is working great in its own window, just can't get it to play embedded. Can anyone point me to a syntax example of embedding mplayer in an app in OS X? thanks!

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  • Creating a Model using Stored Procedures with Zend Framework

    - by jwhat
    I'm using Zend Framework and I'd like to build a model to perform read/write operations on a database... using stored procedures. I know how stored procedures work, but I have yet to use them within Zend Framework. Is there any built in support for stored procedures that I should know about? What is the best practice way to create a model in this senario? Should I extend Zend_Db_Table_Abstract or some other class?

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  • QT vs. Net - REAL comparisons for R.A.D. projects

    - by Pirate for Profit
    Man in all these Qt vs. .NET discussions 90% these people argue about the dumbest crap. Trying to get a real comparison chart here, because I know a little about both frameworks but I don't know everything. I believe Qt and .NET both have strengths and weaknesses. This is to make a comparison that highlights these so people can make more informed decisions before embarking on a project, in the spirit of R.A.D. Event Handling In Qt the event handling system is very simple. You just emit signals when something cool happens and then catch them in slots. ie. // run some calculations, then emit valueChanged(30, false, 20.2); and then catching it, any object can make a slot to recieve that message easily void MyObj::valueChanged(int percent, bool ok, float timeRemaining). It's easy to "block" an event or "disconnect" when needed, and works seamlessly across threads... once you get the hang of it, it just seems a lot more natural and intuitive than the way the .NET event handling is set up (you know, void valueChanged(object sender, CustomEventArgs e). And I'm not just talking about syntax, because in the end the .NET anonymous delegates are the bomb. I'm also talking about in more than just reflection (because, yes, .NET obviously has much stronger reflection capabilities). I'm talking about in the way the system feels to a human being. Qt wins hands down for the simplest yet still flexible event handling system ever i m o. Plugins and such I do love some of the ease of C# compared to C++, as well as .NET's assembly architecture, even though it leads to a bunch of .dll's (there's ways to combine everything into a single exe though). That is a big bonus for modular projects, which are a PITA to import stuff in C++ as far as RAD is concerned. Database Ease of Doing Crap Also what about datasets and database manipulations. I think .net wins here but I'm not sure. Threading/Conccurency How do you guys think of the threading? In .NET, all I've ever done is make like a list of master worker threads with locks. I like QConcurrentFramework, you don't worry about locks or anything, and with the ease of the signal slot system across threads it's nice to get notified about the progress of things. QConcurrent is the simplest threading mechanism I've ever played with. Memory Usage Also what do you think of the overall memory usage comparison. Is the .NET garbage collector pretty on the ball and quick compared to the instantaneous nature of native memory management? Or does it just let programs leak up a storm and lag the computer then clean it up when it's about to really lag? Doesn't the just-in-time compiler make native code that is pretty good, like and that only happens the first time the program is run? However, I am a n00b who doesn't know what I'm talking about, please school me on the subject.

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  • Hidden Features of ASP.NET

    - by Vaibhav
    There are always features that would be useful in fringe scenarios, but for that very reason most people don't know them. I am asking for features that are not typically taught by the text books. What are the ones that you know?

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  • Restore passwd for root on a server

    - by s.mihai
    Hello,       I have a DVR server with linux embeded. It has some telnet functions but i don't have the password for it (the chinese manufacturer refuses to give me the password). I did get a upgrade folder from them and found a passwd file inside.       So i assume that when i upgrade the firmware the password in that file will be used.       Now i am trying to modify the file so taht i can insert a password i already know.       The problem is that i don't know how to create the password hash from what i figured the password hash is $1$1/lfbDKX$Hmd.FqzB8IZEohPesYi961       The file is named rom.ko and i found a command telnetd /mnt/yaffs/web/boa -c /mnt/yaffs/web & /bin/cp -f /mnt/yaffs/rom.ko /etc/shadow in a script file so i assume this is the right way.       Can you help me reconstruct a password that i know already? Tell me how or make one for me :) ?... passwd file: root:$1$1/lfbDKX$Hmd.FqzB8IZEohPesYi961:0:0:99999:7:-1:-1:33637592 bin::10897:0:99999:7::: daemon::10897:0:99999:7::: adm::10897:0:99999:7::: lp::10897:0:99999:7::: sync::10897:0:99999:7::: shutdown::10897:0:99999:7::: halt::10897:0:99999:7::: mail::10897:0:99999:7::: news::10897:0:99999:7::: uucp::10897:0:99999:7::: operator::10897:0:99999:7::: games::10897:0:99999:7::: gopher::10897:0:99999:7::: ftp::10897:0:99999:7::: nobody::10897:0:99999:7::: next::11702:0:99999:7:::

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  • dropdownlist itemsource and selected value in wpf

    - by vahid
    hi all i have a dropdownlist that bind to a collection of all system colors(ObjectDataProvider).it shows colors name and background of each items is draw with colorName.it works fine . but know i have a listbox that bind to an collection(CollectionViewSource) that shows a list of element with a property name "backcolor" ,i want to selectedvalue of dropdown changed when selecteditem in listBox changed ???? my paltform is WPF and i know a few about masterDetails senario

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  • What is the latest on Microsoft Expressoin Studio licensing?

    - by DanM
    In the past, there's been an issue with Microsoft not allowing you to deactivate an Expression Studio key. Basically, you get two keys per license. If you assign both keys (say one to a desktop and one to a laptop), then you upgrade to a new machine (say you replace your laptop or upgrade some of the hardware), you have to buy a new copy of Expression Studio ($600 for Ultimate). This seems ludicrous to me, and I'm wondering if anyone knows if this policy is still in place. I can't seem to find a EULA online anywhere, so I don't know where to find this information. I know my laptop is due for replacement soon, and I want to know if I'm going to have to sink $600 into a software product I already purchased. For background, please refer to this thread on the Microsoft Expression forums: http://social.expression.microsoft.com/Forums/en-US/general/thread/da5587bc-b098-4c6a-9a56-af3608d940d0 Note that this thread is locked. Microsoft doesn't seem to want people to discuss this. This is one reason I'm posting here rather than on that site.

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  • GLEW + VS2010 error

    - by Egon
    Hi folks, I am running into this issue and don't know what to do ? 'abc.exe': Loaded 'D:\Windows\SysWOW64\nvoglv32.dll', Cannot find or open the PDB file earlier I was getting a whole bunch of errors, but the microsoft symbols source set the issue for all of them except this one file : nvoglv32.dll ; does anybody know how I can resolve this issue or get my hands on the file "nvoglv32.pdb" ? Thanks -A

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  • Implementation code of native methods

    - by Tapas Bose
    At first I want to let you know that this question is not related with What is native implementation in Java. I got many useful information from that thread. I want to know that are the codes of the native implementations available? I have jdk source code but I can not find the native codes for System.currentTimeMillis or Runtime.getRuntime().availableProcessors() or other native method. Thanks and regards.

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  • computing hash values, integral types versus struct/class

    - by aaa
    hello I would like to know if there is a difference in speed between computing hash value (for example std::map key) of primitive integral type, such as int64_t and pod type, for example struct { int16_t v[4]; };. I know this is going to implementation specific, so my question ultimately pertains to gnu standard library. Thanks

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