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  • How can I ask for a new dhcp lease on windows 7?

    - by Pat
    In windows7 how do I request a new dhcp lease ? What I need in the equivalent of the button "repair" on windows XP. The button "diagnose" seems to do a few things but not request a new dhcp lease if one is already available. Disabling and re-enabling the card does the trick but messes up any program capturing traffic on the interface.

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  • How to tell Linux to explicitly swap out main memory of suspended process?

    - by Vi
    I run a memory-hungry process (mkcromfs) which consumes more memory than I have physical memory on my latop, so it is paging and swappin and thrashing all the time and loadavg is about 2 (compcache is already in use with usual swap partition as well), but slowly moving forward (Although I afraid it will finally try to allocate 2GB and crash draining 2 days of thrashing). When I want to use the laptop for something else, I stop the process, start X server, firefox and other programs. The problem is that when I start Firefox the loadavg jumps to 10 and the system becomes almost unresponsive at all (long time to turn on/off caps lock, slow mouse cursor position updates, slow switching from X server to Linux console, slow login). The stopped mkcromfs still holds a lot of memory (464.8 MiB and slowly falling) and moves it to swap only when more memory is needed for some other program, which results in a great slowdown. How to tell the Linux to swap out this process entirely (e.g. I'm not intending to resume it in short term), possibly waking from swap other data? Also it will be useful to be able to specify the exact swap device to swap the given process out.

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  • What questions do I need to ask for a database sync?

    - by user65745
    I am currently helping to implement an RFID inventory management system for my company. The software that we are locked into has been at best buggy and unreliable. The software provider is now rolling out a major release. My problem is that the new software release keeps a local database on each machine that then syncs to a master database online. According to the software company we cannot do a scaled rollout because of data corruption issues between the software releases. What questions can I be asking and what sort of testing can I do on my end to make sure this software works? Any suggestions would be very helpful.

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  • Everything You Ever Wanted to Know about Mod_Rewrite Rules but Were Afraid to Ask?

    - by Kyle Brandt
    How can I become an expert at writing mod_rewrite rules? What is the fundamental format and structure of mod_rewrite rules? What form/flavor of regular expressions do I need to have a solid grasp of? What are the most common mistakes/pitfalls when writing rewrite rules? What is a good method for testing and verifying mod_rewrite rules? Are there SEO or performance implications of mod_rewrite rules I should be aware of? Are there common situations where mod_rewrite might seem like the right tool for the job but isn't? What are some common examples?

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  • Everything You Ever Wanted to Know about Mod_Rewrite Rules but Were Afraid to Ask?

    - by Kyle Brandt
    How can I become an expert at writing mod_rewrite rules? What is the fundamental format and structure of mod_rewrite rules? What form/flavor of regular expressions do I need to have a solid grasp of? What are the most common mistakes/pitfalls when writing rewrite rules? What is a good method for testing and verifying mod_rewrite rules? Are there SEO or performance implications of mod_rewrite rules I should be aware of? Are there common situations where mod_rewrite might seem like the right tool for the job but isn't? What are some common examples?

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  • http post request with cross-origin in javascript

    - by Calamarico
    i have a problem with a http post call in firefox. I know that when there are a cross origin, firefox first do a OPTIONS before the POST to know the access-control-allow headers. With this code i dont have any problem: Net.requestSpeech.prototype.post = function(url, data) { if(this.xhr != null) { this.xhr.open("POST", url); this.xhr.onreadystatechange = Net.requestSpeech.eventFunction; this.xhr.setRequestHeader("Content-Type", "application/json; charset=utf-8"); this.xhr.send(data); } } I test this code with a simple html that invokes this function. Everything is ok and i have the response of the OPTIONS and POST, and i process the response. But, i'm trying to integrate this code with an existen application with uses jquery (i dont know if this is a problem), when the send(data) executes in this case, the browser (firefox) do the same, first do a OPTION request, but in this case dont receive the response of the server and puts this message in console: [18:48:13.529] OPTIONS http://localhost:8111/ [undefined 31ms] Undefined... the undefined is because dont receive the response, but the code is the same, i dont know why in this case the option dont receive the response, someone have an idea? i debug my server app and the OPTIONS arrive ok to the server, but it seems like the browser dont wait to the response. edit more later: ok i think that the problem is when i run with a simple html with a SCRIPT tag that invokes the method who do the request run ok, but in this app that dont receive the response, i have a form that do a onsubmit event, i think that the submit event returns very fast and the browser dont have time to get the OPTIONS request. edit more later later: WTF, i resolve the problem make the POST request to sync: this.xhr.open("POST", url, false); The submit reponse very quickly and can't wait to the OPTION response of the browser, any idea to this?

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  • Renoise and dssi and jack

    - by Bojan
    This may be a little complicated, but, is jack a necessity? I mean, i use renoise, and, since i dont have the need for low latencies, do i really need to use it? My basic setup ( or workflow ) is that i use csound to render stuff to wav, then import it as a sample in renoise. That goes with field recordings, my own samples, etc. So, i dont need ultra low latencies, and i dont need to patch "cords", but i want to use dssi plugins, and dssi-vst. What would be something of a minimum requirements of apps that should work. Can renoise load dssi-vst plugins by itself or do i need to use jack to patch thru or something third, i tried to read lot of articles but i got lost in the different setups...

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  • Usb Live No hardisk

    - by sergey simeonov
    Ok so i own a toshiba laptop , and the thing is my hdd went bad,but i had a usb flash drive with i live cd Ubuntu on it. Now i dont have and hdd plugged in my laptop im only with a flashdrive. My question is how much memory does this live cd support cause my flash drive is 32 gigs and after about 1.5 gigs of downloads a screen shows up and tells me that i dont have enough space left. the other thing is i dont have money to get a hdd right now so i wanna use this flash drive for now but can i somehow customize the cd thru the live edition so i could have programs that i need after restarts i tried with Customization Live Cd but when i run it , it stops and in my terminal it says could not execute not enough space. So if anyone can tell me what can i do with this problem im having with space on my live Usb ubuntu.

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  • Ubuntu 12.04 installer Crashed

    - by Umair Mustafa
    I downloaded Multiple times Ubuntu 12.04 and Ubuntu 12.04.1. And tried to install them using first Virtual box if it work I move to install on actual drive. I dont knw but 12.04.1 dont wanna install on my system So i downloaded 12.04 release and installed it on Virtual box and it installed perfectly then i moved on to install it as Dual OS along with windows 7 but the installer crashed just like the other version and I dont know what the heck is the problem with ubuntu OS Installers. Ubuntu really need to work on their Installer. I love Ubuntu but such things are really headache. At first I thought image was not properly so i burned on another dvd but alas no use same stupid error. Now there are 3 images of 12.04 and 2 images of 12.04.1 and none of them is working on my system. And wasted two dvds. Does anyone know how to solve this problemo.

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  • Any good interview Questions to ask a sybase dba.

    - by scot
    Hi, I am a java developer and i will be interviewing sybase dbas along with my boss. I know some basic stuff about sybase. Iam looking for good interview questions that i can ask for a sybase dba. they will be having a min of 4 years of experience. I am looking for them to have really good knowledge in performance and tuning related areas like how to measure database performance and suggest ways to improve database design or sybase configuration etc. Help much appreciated. BR

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  • How can i take only integer input from keyboard and if input is invalid how do i ask user agaian

    - by fari
    This is what i have written so far but when exception is raised it does not again ask teh user for input. do{ System.out.println("Enter the number of stones to play with: "); BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); String temp=br.readLine(); }while (key<0 && key>9); if(key<0 || key>10) throw new InvalidStartingStonesException(key); player1=new KeyBoardPlayer(); player2 = new KeyBoardPlayer(); this.player1=player1; this.player2=player2; state=new KalaGameState(key); } catch(NumberFormatException nFE) { System.out.println("Not an Integer");} catch(IOException e) { System.out.println(e); }

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  • Algorithm: How to tell if an array is a permutation in O(n)?

    - by Iulian Serbanoiu
    Hello, Input: A read-only array of N elements containing integer values from 1 to N. And a memory zone of a fixed size (10, 100, 1000 etc - not depending on N). How to tell in O(n) if the array represents a permutation? --What I achieved so far:-- I use the limited memory area to store the sum and the product of the array. I compare the sum with N*(N+1)/2 and the product with N! I know that if condition (2) is true I might have a permutation. I'm wondering if there's a way to prove that condition (2) is sufficient to tell if I have a permutation. So far I haven't figured this out ... Thanks, Iulian

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  • partitioning in ubuntu with gparted cant resize

    - by user288830
    I opened gparted and as i can see i have 3 partitions(or i think so) first one sda1 (236 mb) its ext2 type file and its booting point, second one is sda2(rest of the hdd 1.36 tb) extended ntfs type file and i have third one that is within the sda2 called sda5 it takes the same space as sda 2 and its file type is crypt luks, so when i try to resize the sda2 i cant resize it not for even 1 mb, i dont know if that crypt luks file is causing the problem, so i dont know what to do, by the way i can format the crypt luks(sda5) file that in inside sda 2 but i dont know if i should.Can anyone help me please? here are the pictures when i open gparted when i try to resize sda 2 i think i did use encryption i mean while it is booting i type password and its says sda5/scrypt set up succefully or something like that and then it goes to my login screen where i type username and pass that is it

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  • Why does my PDF ask for a password after being retrieved from Visual SourceSafe?

    - by Schnapple
    PREFACE: Yes we're moving away from VSS in the next few months. One of my web projects contains, as one of its files, a PDF. The PDF on our QA site is being pulled from VSS. A QA tester recently told me he's being prompted for a password when he tries to open it. VSS says the file I have on disk is different than the one it has, so I updated it, but afterwards it's still being shown as different. So basically VSS is mangling my PDF and the results are so wobbly that Adobe Acrobat Reader is confused and thinks it has a password. I've tried adding it as Auto-Detect and as Binary. Same results. Why does my PDF ask for a password after being retrieved from Visual SourceSafe and how can I prevent it?

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  • iPhone SDK: Do I need to ask user for permissions to use GPS?

    - by RaYell
    In my iPhone application I need to use GPS (CoreLocation to be exact) to get current position of the device. I know that most (if not all) applications using GPS have a popup implemented asking the user to allow GPS access. Is that done automatically by the iPhone SDK or should I implement such functionality myself? I've tried to run my app on iPhone Simulator and it didn't ask for permissions at all so I'm wondering if the same thing will happen on the actual phone. And if I implement that itself and the SKD provides that out-of-the-box then I'll have two confirmation in my app which I don't want.

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  • How would you implement the "tell don't ask" principle in HAML?

    - by Enrique Ramírez Vélez
    Here's the thing. I have a button that, depending on the scenario, will behave, look and have different text. Here's how it, roughly, looks like at the moment: - if params[:param_A] && @statement_A %span.button.cancel_button{attribute: "value_B"} - if @statement_B = t('locale_A') - else = t('locale_B') - elsif params[:param_A] %span.button.cancel_button{attribute: "value_A"} - if @statement_B = t('locale_A') - else = t('locale_B') There's also a CSS class both buttons should have IF statement_B is true. So it is a mess. And I recently read about the "Tell, don't ask" principle which I liked very much, so I'd love to apply it here... but I'm not sure how. I know I could make a helper, but I'd like to stay away from them because reasons (I really have some valid reasons to do so, but those are beyond the scope of this question). I can resort to that as a last resource, but would rather find another solution.

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  • How can you tell if an activity is starting or resuming?

    - by Joren
    I have an activity which pulls some JSON from my server, and then uses it to draw a list. That list launches further activities. My problem is that I can't figure out a way to tell if the activity is still alive when you go back to it, so I end up re-querying my JSON from the server and redrawing the list every time the user goes back to the activity. How can I tell if my activity is still alive so I can skip the redraw? Using onRestart works for hitting the home key then going back, but onCreate not onRestart is called if I selected a list item then hit back.

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  • ListView images just not showing up. Why (Drooping my head in shame that I have to ask)

    - by Quigrim
    I am trying to display images in a WinForms ListView that is in details view mode, but images are just not showing up. I have added a SmallImageList (and a large one for good measure, added images to them, added my items to the ListView, but when I set the ImageIndex nothing happens. Images do not show up. I have also tried using the ImageKey. I feel like an idiot that I have to ask about this, but I must be doing something wrong. Any steps I am missing? Thanx much.

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  • Web based API that can tell me if a number is a landline or cell phone?

    - by MikeN
    My application sends SMS messages to people, but the numbers entered in as their cell phone are sometimes land lines (this is user error or the user not really knowing if the contact number they have is a cell phone or landline.) I found a few websites that can tell me if a number is a landline or cell phone, but they do not offer programatic API's. Is anyone aware of a way a web application can figure out if a number can receive SMS messages? I guess a test SMS message is one way, but my current SMS gateway fails hard when it gets a landline number and doesn't tell me the landline number it tried to send the SMS to. I'll follow this up with my carrier, but I would love an easy way to let the user entering phone numbers in if they are a landline or cell number. Update: There are ways to figure this out. Take a look at http://www.phonevalidator.com, they can query a phone number and figure out if it is a landline or cell phone.

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  • How to tell the parent that the thread is done in C++ using pthreads ?

    - by milleroff
    Hi. I have a TCP Server application that serves each client in a new thread using POSIX Threads and C++. The server calls "listen" on its socket and when a client connects, it makes a new object of class Client. The new object runs in its own thread and processes the client's requests. When a client disconnects, i want some way to tell my main() thread that this thread is done, and main() can delete this object and log something like "Client disconnected". My question is, how do i tell to the main thread, that a thread is done ?

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  • What should I ask a prospective client during initial meeting?

    - by Anna Lear
    I'm about to branch out into taking on some contracts on the side. What would be some good questions to ask of a potential client during a first meeting? I've thought of a few things that seem pretty obvious: * What is the project? * What are the deadlines? * What's the budget? * What/how do they want me to deliver the completed work? Is that it, or are there any tricky things to watch out for?

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  • How to tell a UITableView to preload all Rows?

    - by Infinite
    Is there a way to tell a UITableView to preload all rows? The tableView is supposed to show several comments (up to 80 comments). So my CommentCell uses a Setter to adapt the cell to a specific comment. -(void)setComment:(Comment *)newComment { if (newComment != comment) { [comment release]; comment = [newComment retain]; /* * set the cells view variables here */ } } This specific setter takes quite a bunch of processing resources and scrolling gets kinda laggy. I am using a comment-specific reuseIdentifier instead of a static cellIdentifier when calling dequeueReusableCellWithIdentifier: in order to assure, that "newComment" equals the old "comment". And in fact this does work great when scrolling over cells which have already been loaded. But when scrolling through the comments for the first time, it still lags like hell. Which leads me to my question: Is there a way to tell the tableview to preload all cells? (which I doubt) or Do I have to implement my own cache instead of relying on "dequeueReusableCellWithIdentifier:"?

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