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• Catch and identify source of browser launch events

  - by beldaz

  My Windows XP computer is exhibiting strange behaviour, launching multiple browser windows, but not to any URL. Initially this was in Firefox, but when I uninstalled it the same happened in IE. Norton 360 detects no malware, and I wonder if there is some application that is accidentally causing the problem. I'd like to diagnose the problem further. It seems that the default browser is being launched by something, so I'd like to work out the culprit. Is there some method (or handy utility) that can catch requests to XP to launch the default browser, and identify the source?

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• Session cach and tmp folder error on cPanel Centos

  - by Danialzo

  One of my clients has come across multiple breakdowns in their websites with the following error PHP Code: Warning: session_start() [function.session-start]:open(/tmp/sess_1d6616afe1b8a0d91a8d9ec29254b453, O_RDWR) failed: No space left on device (28) in /home/***/public_html/system/library/session.php on line 11Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /home/***/public_html/index.php:104) in /home/***/public_html/system/library/session.php on line 11Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/***/public_html/index.php:104) in /home/***/public_html/system/library/session.php on line 11Warning: Cannot modify header information - headers already sent by (output started at /home/***/public_html/index.php:104) in /home/***/public_html/index.php on line 177Warning: Cannot modify header information - headers already sent by (output started at /home/***/public_html/index.php:104) in /home/***/public_html/system/library/currency.php on line 45&#65279;Notice: Error: Can't create/write to file '/tmp/#sql_4c5_0.MYI' (Errcode: 28) Error No: 1 They are experiencing this problem while: Nothing has been recently changed on the server tmp and other folders are occupied with not more than 10% of their total space The error come and goes I would really appreciate it if anyone could guide me through. Thanks in advance

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• View the Time & Date in Chrome When Hiding Your Taskbar

  - by Asian Angel

  Do you prefer keeping your Taskbar hidden but still need to keep watch on what time it is? Now you can keep track of the time without the Taskbar using the Date Today extension for Google Chrome. A Look at Date Today with Different Themes This extension does one thing and does it well…it provides you with an “active icon” clock that will let you view the time and date in two fashions. The first is by hovering your mouse over the “Toolbar Clock Button”… And the second is by clicking on the “Toolbar Clock Button” to view an enlarged version. Here you can see the extension in use with five different themes to get an idea of how it might look with the theme that you are currently using. It does stand out very nicely with brighter or darker colored themes. Conclusion While this extension is obviously not for everyone it will make a nice (and useful) addition to Chrome for those who prefer keeping their Taskbar hidden. Links Download the Date Today extension (Google Chrome Extensions) Similar Articles Productive Geek Tips Set the Date and Time on SolarisView Browser History Based on Host & Date in ChromeQuick Tip: Set a Future Date for a Post in WordPressFuture Date a Post in Windows Live WriterSave Screen Space by Hiding the Bookmarks Toolbar in Safari for Windows TouchFreeze Alternative in AutoHotkey The Icy Undertow Desktop Windows Home Server – Backup to LAN The Clear & Clean Desktop Use This Bookmarklet to Easily Get Albums Use AutoHotkey to Assign a Hotkey to a Specific Window Latest Software Reviews Tinyhacker Random Tips Revo Uninstaller Pro Registry Mechanic 9 for Windows PC Tools Internet Security Suite 2010 PCmover Professional Discovery Channel LIFE Theme (Win7) Increase the size of Taskbar Previews (Win 7) Scan your PC for nasties with Panda ActiveScan CleanMem – Memory Cleaner AceStock – The Personal Stock Monitor Add Multiple Tabs to Office Programs

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• Throwing and catching exceptions in the same function/method

  - by usr

  I've written a function that asks a user for input until user enters a positive integer (a natural number). Somebody said I shouldn't throw and catch exceptions in my function and should let the caller of my function handle them. I wonder what other developers think about this. I'm also probably misusing exceptions in the function. Here's the code in Java: private static int sideInput() { int side = 0; String input; Scanner scanner = new Scanner(System.in); do { System.out.print("Side length: "); input = scanner.nextLine(); try { side = Integer.parseInt(input); if (side <= 0) { // probably a misuse of exceptions throw new NumberFormatException(); } } catch (NumberFormatException numFormExc) { System.out.println("Invalid input. Enter a natural number."); } } while (side <= 0); return side; } I'm interested in two things: Should I let the caller worry about exceptions? The point of the function is that it nags the user until the user enters a natural number. Is the point of the function bad? I'm not talking about UI (user not being able to get out of the loop without proper input), but about looped input with exceptions handled. Would you say the throw statement (in this case) is a misuse of exceptions? I could easily create a flag for checking validity of the number and output the warning message based on that flag. But that would add more lines to the code and I think it's perfectly readable as it is. The thing is I often write a separate input function. If user has to input a number multiple times, I create a separate function for input that handles all formatting exceptions and limitations.

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• What is the fastest RAID in practise?

  - by Luke

  I'm going to be rebuilding my server, and I want much faster access to my data. I've used RAID 1 and 0 in the past, and decided upon RAID 10 (dedicated RAID card). Then someone told me to use RAID 5+0, then someone else told me to use RAID 6+0. Assuming the Hardware RAID Card supports each level, what is currently the FASTEST RAID available, given x number of hard drives? Reliability is now another factor, and I am willing to spend money on new drives if a drive (or multiple) fail. I simply want to know what the fastest RAID level is, along with some reliability for recovering from a failure

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• Motherboard Issue - 3 Beep Bios (memory error) despite new RAM

  - by Glenn

  I have an Intel dG43RK motherboard, bought new and sealed, and have tried two different brands and speeds of RAM with a 3-beep BIOS indicating a memory error, which also occurs without RAM installed (as it should). The memory tried is; 1x4GB 1333 Kingston HyperX DDR3 RAM (New and Sealed) 2x4GB Team Elite 1066 DDR3 RAM (New and Sealed) I have tried multiple configurations and seating layouts and still no luck. I also have a GT520 graphics card on board as I dislike in-built graphics in most cases and had it at hand (also new and sealed). The only used parts are the CPU, which worked in my previous tower and was directly taken from the PC into the new set-up and the CPU Fan which will be replaced with a new fan in the foreseeable future once this is resolved. I've run out of ideas myself and any help is appreciated.

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• 12.04 Taking forever for no apparent reason

  - by Sam

  First off, I'd just like to say how much I'm loving Ubuntu so far. It's one of my first steps into Linux, but so far it's blown away Windows in almost every regard. Now, onto my problem. My brothers have some old Dell Dimensions that are barely clinging to life. They were both running XP Home Premium. The 2400 installed just fine, no issues at all. Now, the other computer, the 3000 isn't clearing the screen with the Ubuntu logo and the pulsing dots. I've tried multiple discs, including the exact same one that gave me no issue in the other computer, and I'm at a loss. Does anyone have any suggestions as to where the problem might lay? They're both 32 bit Intel processors, and it's the correct version of Ubuntu. Is it a bad disc drive? Hardware incompatibility? Thanks for any assistance that can be provided. Dell Dimension 2400 Dell Dimension 3000

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• Nullable types and ?? operator C# [en-US]

  - by ruimachado

  Nullable types vs Non-nullable types   While developing our C# projects its frequent the null comparison operation to avoid null exceptions. This simple operation is mainly coded using the "var x = null" code example inside an if clause. However not all types of variables are nullable, which means that setting a variable to null is not allowed in every cases, it depends on what kind of type are you defining. But what if there was an extension to your non-nullable type that would convert your variable types to nullable? This extension really exists. As I said before in C# you have nullable types which represent all the values of an underlying type, and an additional null value and can be declared easily using "T?", where T is the type of the variable and for example the normal int type cannot be null, so its a non-nullable type, however if you define a "int?" your variable can be null, what you do is convert a non-nullable type to a nullable type. Example: int x=null;     Not allowed     int? x=null;   Allowed     While using nullable types you can check if a variable is null the same way you do it with nullable types:     But what about setting a default value when a certain variable is null?   In this cases the c# .net framework let you set a default value when you try to assign a nullable type to a non-nullable type, using the ?? operator. If you don't use this operator you can still catch the InvalidOperationException which is throw in this cases. For example  without the ?? operator :     Using the ?? operator your code becomes cleaner and more easy to read and you get a bonus, you can set a default value for multiple variables using the ?? in a chain set.     That’s it,   Thanks, Rui Machado rpmachado.wordpress.com

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• Solutions for iOS collaborative sync (iCloud CoreData, CouchDB)?

  - by mluisbrown

  I'm developing an iOS app where one of the features will be allowing users to share and collaborate on data (e.g. lists). From everything I've read and based on the way that iCloud CoreData sync works I assume that it would not be a good fit for the following reasons, but I wanted to make sure I wasn't missing anything, as I'd prefer not to use a 3rd party syncing solution if at all possible: iCloud sync of any kind (CoreData, Document or Key / Value pairs) can only ever be between devices that use the same iCloud account, so it's designed for a single user syncing data over multiple devices. Any kind of collaborative sync (several people editing the same document / list) simultaneously would be limited to everyone have the same iCloud account. Cases of people sharing the same iCloud account is usually limited to, for example, husband and wife or similar close relationships for a small number of people. iCloud Core Data sync is for ensuring that each sync'd device has the same data. It doesn't seem to allow syncing just a subset of the data, so scenarios in which each user has their own documents and is only sharing / collaborating on a subset of them are not supported. And I'm not even mentioning the well document problems with iCloud CoreData syncing which may or may not have been resolved with iOS 7. Given the above, it would seem that CouchDB (with TouchDB) would be a better option, as it seems to support everything I need. What other options are there that people can recommend?

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• Git Branch Model for iOS projects with one developer

  - by glenwayguy

  I'm using git for an iOS project, and so far have the following branch model: feature_brach(usually multiple) -> development -> testing -> master Feature-branches are short-lived, just used to add a feature or bug, then merged back in to development and deleted. Development is fairly stable, but not ready for production. Testing is when we have a stable version with enough features for a new update, and we ship to beta testers. Once testing is finished, it can be moved back into development or advanced into master. The problem, however, lies in the fact that we can't instantly deploy. On iOS, it can be several weeks between the time a build is released and when it actually hits users. I always want to have a version of the code that is currently on the market in my repo, but I also have to have a place to keep the current stable code to be sent for release. So: where should I keep stable code where should I keep the code currently on the market and where should I keep the code that is in review with Apple, and will be (hopefully) put on the market soon? Also, this is a one developer team, so collaboration is not totally necessary, but preferred because there may be more members in the future.

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• Exchange 2007 mailbox reassignment

  - by John Virgolino

  I am trying to move a mailbox from one user account to another within a single AD domain. We are using Exchange 2007. I have followed these steps: Disable the account From "Disconnected Mailbox" container, connect to the new account I get a success message When I try to login to OWA using the new user account, I get this message: Outlook Web Access could not connect to Microsoft Exchange. If the problem continues, contact technical support for your organization. Request Url: https://mail.somedomain.com:443/owa/default.aspx User host address: 1.2.3.4 Exception Exception type: Microsoft.Exchange.Data.Storage.ConnectionFailedTransientException Exception message: Cannot open mailbox /o=cgsexchangeorganization/ou=exchange administrative group (fydibohf23spdlt)/cn=recipients/cn=someuser. NOTE: I changed some identifying information for security purposes. I have tried multiple times and get to the same place. When I login to OWA with old account, I get an error that the mailbox cannot be found, which makes total sense. Does anybody have any ideas on this? Thanks!

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• What is the difference between Skip and Don't Copy buttons in Copy File dialog?

  - by Vadim

  This is a silly question. In Windows 7/Vista when a user trying to copy multiple file, it looks like he has five options: Copy and Replace Don't Copy Copy, but keep both files Skip Cancel the operation. It looks to me that option 2 (Don't Copy) is the same as 4 (Skip). However, it's kind of strange for Microsoft to put two buttons that perform the same action. I probably miss something. Could you please tell me what I'm missing?

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• Virtualbox crashes quite often in Windows 8

  - by user1776158

  I just installed Windows 8 on my computer. I got the ISO and the product key from my university so the software itself is sound. I use alot of virtual box. And ever since I moved to Windows 8, I have noticed that virtual box crashes more often. In particular, it is very very bad at opening multiple guests. My CPU usage will be at like 20% and I only have 3 guests open and my entire computer just freezes. Cursor and all. In Windows 7, I was able to open like 6 (not that I ever needed to) and really push my CPU. I havent experience any other issues with Windows 8 yet. Has anyone encountered this? Thanks!

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• split a textfile after each n matches to a new file using sed or awk

  - by ozz

  i tried to split a file in parts of n matches each. The file is just one line and the seperator is '<br>' foo<br>bar<br>.....<br> I just want to split the file in parts, where each file has 100 datasets (text plus <br>)( normaly 100 datasets, but at the end maybe less) I already played around with this ... split-file-in-2-with-sed and this split-one-file-into-multiple-files-based-on-pattern sed.exe -e "^.*.<br>{0,100}/g" < original.txt > first_half.txt The split do not work an the result is only 1 file instead of many.

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• App to slice'n'dice video, specifically remove chunks, on a Mac?

  - by Phillip Oldham

  I have a couple of collections of DVD Box-Sets I've ripped to my mac. Now I'd like to sweeten the viewing experience by removing the title sequences and credits so that viewing doesn't mean I have to keep reaching for the remote to skip 30 seconds of annoying music (think watching multiple episodes of Family Guy). If I can find an app that will let me do this reasonably quickly manually that would be great, but it would be perfect if I could dump a load of commands into a file and have everything trimmed while the mac is "inactive". I'm thinking that if I can specify chunks of time to remove from the original file that would be perfect. I had a quick look at importing into iMovie to do it manually and gave up at the "Processing Thumbnails" stage as it said it would be a couple of hours to produce them for a 45min mp4 file, which I can understand at 25fps but I'm not willing to wait, especially when I've got over a week's worth of files. Any suggestions?

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• How to download big file with chrome on Mac OSX?

  - by Eye of Hell

  If I try to download a big file on unstable connection/server (XCode 4) Google chrome simply "stops" downloading on first network error so I have a first 1-2-3 gigabytes of file and chrome thinks that download is finished. Unfortunately, I need to download an entire file, so I need a more advanced download tool like a wget. But there comes a problem: most URL's currently on the web is not a direct URL but multiple "redicrect" pages that utilize complex javascript in order to generate next url and redirect browser to it. Chrome handles such things ok, but if I try to supply such URL to wget it will download some "intermediate" page as a file - not a file itself but an HTML page with complex redirect javascript. is it any way to get a direct URL from chrome or to somehow discover it so I can use it with wget? Maybe it's some avanced download manager integrated in chrome that I just need to install? I use MacOS X 10.6.6 and latest Google chrome.

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• After installing Windows 8, boot hangs before BIOS setup

  - by Joe Purvis

  I have an Alienware M15x, 940MX processor, 16 GB RAM, 512GB M4 SSD, and I was running Win7 64bit. I backed up the disk and ran Win 8 setup. Setup appeared to go well through multiple reboots. After the last reboot, it simply stopped after POST at "Press F2 for bios setup". I have tried powering off, reducing RAM to one stick, removing MOS battery. Now, it gets to the screen with "Press F2 for setup" and "Press F12 for boot options". If I press F2, I get a single beep only. If I press F12, nothing. I cannot get into the BIOS to change boot options to boot from another disk and restore. I do have the latest BIOS. I am going to try replacing the CMOS battery, but I don't think that is likely to help. The computer has been fast and very reliable until now.

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• Is it possible to dump the names of all the open files in notepad++ to a file?

  - by mark

  So, I dragged and dropped multiple files onto notepad++. The files came from different directories and were selected using different criteria. So, I have many files open in Notepad++. Now I need to have a list of all the open files in another file. Right now, my only option is to script the decisions used to guide me in selecting the files in the first place. Which is probably the best in the long term, but I wonder if there is a quicky one in Notepad++. Some plugin magic or whatever. Suggesting another free editor which has this function is a good option too (not that I am going to ditch notepad++, God forbid)

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• Using Bullet physics engine to find the moment of object contact before penetration

  - by MooMoo

  I would like to use Bullet Physics engine to simulate the objects in 3D world. One of the objects in the world will move using the position from 3D mouse control. I will call it "Mouse Object" and any object in the world as "Object A" I define the time before "mouse object" and "Object A" collide as t-1 The time "mouse object" penetrate "Object A" as t Now there is a problem about rendering the scene because when I move the mouse very fast, "Mouse object" will reside in "Object A" before "Object A" start to move. I would like the "Mouse Object" to stop right away attach to the "Object A". Also If the "Object A" move, the "Mouse object" should move following (attach) the "Object A" without stop at the first collision take place. This is what i did I find the position of the "Mouse Object" at time t-1 and time t. I will name it as pos(t-1) and pos(t) The contact time will be sometime between t-1 to t, which the time of contact I name it as t_contact, therefore the contact position (without penetration) between "Mouse object" and "Object A" will be pos(t_contact) then I create multiple "Mouse object"s using this equation pos[n] = pos(t-1) * C * ( pos(t) - pos(t-1) ) where 0 <= C <= 1 if I choose C = 0.1, 0.2, 0.3,0.4..... 1.0, I will get pos[n] for 10 values Then I test collision for all of these 10 "Mouse Objects" and choose the one that seperate between "no collision" and "collision". I feel this method is super non-efficient. I am not sure the way other people find the time-of-contact or the position-of-contact when "Object A" can move.

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• Examples of applications where messages are guaranteed to turn up imediately

  - by James Hay

  I'm trying to find an example to show where data is sent from somewhere, whether manually or automatically, and is received IMMEDIATELY by the recipient, (doesn't matter whether we're talking mobile, desktop or whatever). An even better example would be where there were multiple recipients for the same message. It doesn't matter what the data is or the context it's used in, only the immediacy of receiving it. I was thinking that there might be some example in finance and the stock markets, but I haven't been able to find any through googling. IM clients are a great example of this and I think I'm basically looking for examples of applications that communicate over sockets. If anyone works on applications of this nature or knows of particular implementations, can you give me a quick run down of the use case and if it's commercial software the name of the software. This is all basically for research purposes so doesn't have to be particularly detailed. If anyone can help, thanks.

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• if a usb pen drive has 64349 cylinders, is it damaged?

  - by Andrew S

  I have a 4Gb USB pen drive that I'm trying to format with FAT32. When I run fdisk, it gives me this message: The number of cylinders for this disk is set to 64349. There is nothing wrong with that, but this is larger than 1024, and could in certain setups cause problems with: 1) software that runs at boot time (e.g., old versions of LILO) 2) booting and partitioning software from other OSs (e.g., DOS FDISK, OS/2 FDISK) I've tried deleting the partition table, creating new partitions, etc, but they never work. Sometimes I can write to the drive the first time I use it after formatting it, but then it becomes read-only in both Windows and Linux. I've tried this on multiple computers. Am I doing something wrong, or is the drive reporting an incorrect number of cylinders? Is the drive itself likely to be corrupted, and is there anyway to fix this under Windows Vista or Linux? Thanks

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• Passing the output of the last command to sed as an argument

  - by neurolysis

  Hi, Basically, I'm wanting to automate adding something to xorg.conf in the right place, I've used some commands to get the line number of the line I want to manipulate, but I'm not really sure how to go about passing this line number (as an argument and NOT something to be manipulated) to sed. I have been told about xargs and looked at the docs on it, but after some reading and experimentation I can't seem to get it to work. In case anyone can think of a better method entirely, the process I want to automate is just finding the line containing both "Identifier" and "Monitor0" (there will only be one) and adding a line below it. The problem with just finding Monitor0 and manipulating that line is that there are multiple lines with Monitor0 in. I've got this far: fgrep -n "Monitor0" </etc/X11/xorg.conf | fgrep "Identifier" | cut -f1 -d: This gives out the line number which I'm wanting to pass to sed, but I'm not really sure how to do it. ...or is there a simpler way which I'm not seeing? Thanks. :)

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• MS Access ADP front end and SQL Server back end for field data collection?

  - by Brash Equilibrium

  I am an anthropologist. I am going to the field and will use a netbook to collect survey data. The survey forms will need to allow me to enter data into multiple tables, search tables, allow subforms, and be fast enough to not slow down my interview. I have considered storing the data in a SQL Server Express 2008 R2 server (there will be a lot of data) while using a Microsoft Access data project as a front end. To cut down the number of steps required to collect and store data, I'm considering using the netbook for both data storage and collection (after reading this article about SQL Server on a netbook). My questions are: (1) Is there a simpler solution that is also gratis (gratis because I already have a MS Access license from my workplace, and SQL Server Express is, obviously, free)? (2) Does my idea to store and collect data using the netbook make sense? Thank you.

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• Configuring MPI on 2 nodes

  - by Wysek

  I'm trying to create really simple "cluster" from 2 multicore computers using openmpi. My problem is that I can't find any tutorials on that matter. I don't want to use torque because it's not necessary in my case nevertheless all tutorials give configuration details either about torque or mpd (which doesn't exist in openmpi implementation). Could you give me some tips or links to appropriate manuals? Steps I've already completed: - openmpi installation - network configuration (computers see each other) - ssh password-less login to second computer I tried using machinefiles without further configuration and with just 2 IPs in it. But jobs don't seem to start at all after initialization part. (MPI seems to work because I'm able to scatter jobs on multiple cores of both computers without communication between them).

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• Unique string values in range

  - by Dean Smith

  I have some spreadsheets where there are large number of cells that have essentially been used for free text. There is a finite set of values for this free text and most, if not all repeat. eg. A B C D 1 Monkey Gorilla Cat Dog 2 Dog Cat Gorilla Gorilla 3 Dog Dog Dog Cat There are probably 50 or so different cell values spread over multiple sheets and hundreds of rows and columns. I need to analyse this data and count occurancies, which is not a problem other than getting a list of unique values to start with and this has been driving me up the wall. What is the best way to produce this list. So from the above we would have Monkey Dog Cat Gorilla In order of preferred solutions, as this will need to be done monthly. Dynamic formula based VB Script Other ( Advanced filtering or other manual steps )

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