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• How to offer a cookie opt in/out to users?

  - by Darkcat Studios

  I intend to use google analyticts, and as I understand it I will need to offer users the option to opt out of cookies. The question is this: I HATE these constant cookie option boxes, everyone I ask it getting annoyed by them too. Its nice to have the option, but we all know they have been in use for well over a decade. So - how big of a deal do I have to make about the fact that I'm using GoogleAn? can I pop a small link at the bottom of the page, maybe integrate it into "Privacy policies" page, and give people the option to opt out there? This would be very much the "Assume the majority of users don't mind, but at least make the option available" stance. Ironically setting a cookie seems to be the only way I can see to enforce the opt-out! as IP's change.

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• Ubuntu 12.04 installation CD is not booting?

  - by vinodk89

  I am using Ubuntu 8.10 and want to upgrade it to 12.04. I have downloaded 12.04 from the Ubuntu site and burned as ISO image CD in a DVD (because it is 701.3MB). When I insert this DVD into my drive for installation, it does not boot. A blank black screen appears. In 8.10 when I click on update to 9.04 it shows some error. Ubuntu 8.10 is not as good as 12.04. Please friends help me to solve this problem. I want to install Ubuntu 12.04 in my pc.

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• Data structure for file search

  - by poly

  I've asked this question before and I got a few answers/idea, but I'm not sure how to implement them. I'm building a telecom messaging solution. Currently, I'm using a database to save my transaction/messages for the network stack I've built, and as you know it's slower than using a data structure (hash, linkedlist, etc...). My problem is that the data can be really huge, and it won't fit in the memory. I was thinking of saving the records in a file and the a key and line number in a hash, then if I want to access some record then I can get the line number from the hash, and get it from the file. I don't know how efficient is this; I think the database is doing a way better job than this on my behalf. Please share whatever you have in mind.

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• Banshee can't see my 2G iPod Touch

  - by TheBlackParrot

  I have a jailbroken 8GB 2nd gen iPod Touch running iOS 4.2.1, and Banshee can't see it, I think. It spits out errors when I plug it in, but it never shows up. http://pastebin.com/HuFDXCmQ is what it's doing according to the terminal. Ubuntu can see it and I can access files fine with Nautilus and pantheon-files. Rhythmbox can see it, but is asking to initialize it. However it doesn't let me select a "Model" and it remains greyed out and blank. It never does seem to initialize it either. Running Ubuntu 12.04 and Banshee 2.6.0. EDIT: Discovered the library was actually corrupted, it's working fine now after a restore.

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• No video signal after install

  - by tW4r

  Today I tried to install Ubuntu 12.10 to my machine, but all the time I encountered the same problem, I successfully boot from Ubuntu 12.04 DVD, and a purple background comes up with accessibility and keyboard icons at the bottom of the screen, then when you wait a while a monitor text comes up "No signal" (Keep in mind that this signal is only shown when there's cable in the monitor HDMI plug), and nothing happens, a little later disk drive stops flashing meaning that disk finished being read. Even if you reset the computer you still get no signal, you have to turn the power of and on again, and plug HDMI out and put it in again. My info: Graphics card: ATI/AMD Radeon HD 4850 Connection to monitor: HDMI Monitor: Samsung SyncMaster T220HD

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• Excel duration converts to date

  - by Malcolm Anderson

  I'm working on an Excel 2010 spreadsheet and I'm trying to put in durations for some tasks I want to schedule.The interesting thing is that up until a few minutes ago, I couldn't do it.I was entering in "47:00" and excel was (and still is) converting it to "1/1/1900 23:00:00"In my mind, I want the value to be 47 minutes, but for the life of me I cannot find a fix for this behavior.Here's the weirdest thing, I haven't had this problem in the past.  Usually I put in times, add them up and they work like magic.  Put in 18 entries of 20 minutes each, total them and excel will usually tell me that it's a total of 6 hours.No problem.Today, problem.Here's the weird bit:As I was writing this post, I got it to work.By formatting the column as custom "[hh]:mm" and summing the columns, I can get total times.But the times are still being formatted into dates if I look at the underlying data.  Bottom line, if you need to calculate durations, you can, but don't look too closely at what is happening underneath the covers.

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• Please help me here

  - by ubuntulover

  I hate f**g problems. I installed ubuntu just some minutes ago. It said Installation finished, you need to restart your computer. Okay when installation finished then what's there any need of a cd in the drive. So I removed it and the screen gone blank and hanged. Mouse pointer now not moving. I put cd again and forcefully restarted the computer then it came up with installation option again. I hated this. Then again I removed the cd from drive and forcefully restarted computer and now I'm on my ubuntu desktop. I want your comments. Is everything well? All seems to be normal now but I still want to talk with you. :/

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• Does Turing-complete implies possibility of malware? [closed]

  - by Mathematician82

  Is it possible to build an operating system that contains some Turing complete compiler (language?) but is unable to run any malware? Or is there any definition for a malware? This question popped on my mind as I was wondering why Windows has more malware than Linux. If Linux contains a C programming language and its compiler, I think it is possible to write a Linux program that works similarly than Windows viruses. But there are less malware for Linux than for Windows although there is a Wine for Linux to simulate Windows programs.

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• Compaq Presario R3000 randomly fails to boot on 11.10, 12.04, 12.10

  - by dlfuller

  I’m trying to figure what to do with random failures to boot. My old HP Presario R3000 with AMD Athlon XP-M sometimes boots, sometimes hangs with a blank screen during boot, and sometimes hangs on shutdown. After a few boot attempts it will finally boot to the GNU GRUB screen where I usually can select Recovery Mode, then select return to a normal boot, and the thing will startup and function normally. The pattern is not repeatable and seemed to start after upgrading from 11.04. Clean installs of 12.04 and 12.10 on newly-formatted hard drives make no difference. If this might be a clue, hangs on shutdown often stop at a line with: “pcmcia_socket pcmcia_socket0: cs: IO port probe 0x3000-0x7fff: excluding 0x3000-0x30ff 0x3400-0x34ff 0x3800-0x38ff 0x3c00-0x3cff”. I did try the “acpi=off” modification from 11.10 randomly fails to boot on Compaq Presario R3000 with no change in these random boot failures. Any suggestions sure appreciated.

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• Problems while installing Ubuntu 12.04 64 & 32 bits from LiveCd

  - by user76104

  I am trying to install Ubuntu on my new pc but I am encountering problems. When I boot from the installation CD, everything runs fine until the "window" when the user has to decide to Try Ubuntu or Install it in the machine. Well that "window" appears in blank, and my mouse and keyboard behaves really slow. I can't do anything , so i have to shut it down by pressing power button. The specification of my pc are this Motherboard: Gigabyte ex58 ud7 CPU: i7 950 HD: Western digital caviar black Int. memory: 6gb memory corsair Graphics: evga gtx580 I really need to install Ubuntu or another Linux distribution, i am using de seismic Unix program {Edit : Guess it is this} on my laptop. I hope someone can help me.

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• If I have true i/o false or vice versa, is it an OBOE?

  - by Protector one

  I often make the mistake of inverting my truth values in my code (e.g. in my if clauses). It gives me the same feeling as when making an OBOE (Off By One Error), even though it's technically not. Would you call it an OBOE, or better yet, is there a specific term for "off by truth value"-errors? My reasoning is that all possible values of a boolean are true and false. In other words, the possible values are contained in the array: [true, false]. If you access this array by index, you'll always be off by one… when selecting the wrong one. This becomes especially obvious when you calculate your index as: index = someInt % 2. Now I understand that this usually not the case, but in my mind, it always feels like this. Almost got it, just off by one…

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• Is it bad practice to run Node.js and apache in parallel?

  - by Camil Staps

  I have an idea in mind and would like to know if that's the way to go for my end application. Think of my application as a social networking system in which I want to implement chat functionality. For that, I'd like to push data from the server to the client. I have heard I could use Node.js for that. In the meanwhile, I want a 'regular' system for posting status updates and such, for which I'd like to use PHP and an apache server. The only way I can think of is having Node.js and apache running parallel. But is that the way to go here? I'd think there would be a somewhat neater solution for this.

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• My Future as a Developer

  - by jmquigley

  You have been a developer for 16 years, mostly in the unix environment woring with C, C++ and Java. You are proficient in those skills, but can always improve. The jobs for C and C++ developers working in the Unix environment are not as plentiful as they used to be, so you're looking to expand your skills. If you were going to focus on an area of technology for the next 10 years, and you had a choice of C# or to continue with your work in Java and expand those skills, which would you choose and why? I love being a programmer. I want to focus on an area that would put me in demand so that I can continue to be a programmer. This is not meant to be subjective, I'm looking for guidance and advice from other professionals. This is a question that is at the front of my mind right now. TIA.

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• PowerShell script to find files that are consuming the most disk space

  As you know, SQL Server databases and backup files can take up a lot of disk space. When disk is running low and you need to troubleshoot disk space issues, the first thing to do is to find large files that are consuming disk space. In this article I will show you a PowerShell script that you can use to find large files on your disks. 12 essential tools for database professionalsThe SQL Developer Bundle contains 12 tools designed with the SQL Server developer and DBA in mind. Try it now.

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• Application of LGPL license on a simple algorithm

  - by georgesl

  The "scope" of the GNU license is troubling me : I know it has been answered many times ( here, here, ... ) but shouldn't we take into consideration the complexity and originality of a code before using GPL license ? I explain : I'm working on a pet project using the DTW algorithm that I have written in C using the pseudo-code given on the wikipedia page . At one point I decided to change it for a C++ implementation ( just for hone my c++ skill ) . After doing so, I've looked for an existing implementation on the web, to compare the "cleanliness" of it, and I found this one : Vectored DTW implementation, which is part of limproved, a C++ library licensed under GPL v3 . Personnally, I don't mind the GNU license because it is a personnal project, which will never led to any kind of commercial purpose, but I wonder if this implementation can abide a company using it to open their code ( and other FOSS permissions ). Theoretically, I think it can ( I may be wrong :p ), but the algorithm in question is so simple (and old) that it should not.

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• What is the reason why some websites are hacked? [closed]

  - by adietan63

  I just want to know. What is the reason why some website are hacked? Is it the website itself or is it the web server? I'm so curious about this because i want to develop my website and I just want to know what are the things I need to do to protect my website? Assuming that i will start it from the scratch. Please give me advice or other technical stuff that will open my mind to developed my website that has security features.. Thank you.

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• Is there any problem with using two slashes in the middle of a URL? [closed]

  - by joshuahedlund

  Possible Duplicate: What does the double slash mean in URLs? I'm working on a mod_rewrite URL structure as follows: http://example.com/search/filter1/filter2/filter3/filter4 There are some conditions where it is OK for the first attribute to be blank, but i want to keep the other attributes in the same position. (Otherwise I can't assume that the attribute in the second position represents what I want it to represent.) However this results in some URLs like this: http://example.com/search//filter2/filter3/filter4 This seems to work in all browsers I've tested (Chrome,Firefox,IE9,IE compatible) and I'm not seeing any errors on the server side, so I can't think of any problems in using it. But it just looks wrong and weird to me and I'm not used to seeing it. Are there any potential downsides to using a structure that encourages URLs like this, or any major reasons no one seems to use it? (Everything I search in Google assumes I'm talking about the two slashes after http:)

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• What is the sudo password after I deleted the password for the user?

  - by Ubuntunewbie

  To have an easier access to the computer I deleted the user's password so it is blank. But now I'm still asked to type in a password for sudo actions such as installing programms, etc. I know that this belongs to Ubuntu's outrageous security policy (which is why I use Ubuntu in the first place..) but I don't have any password to enter any more!! The old user password is not accepted and anything else (like just hitting enter) doesn't work either. I already tried the recovery mode (root shell) way passwd USER< but it replied that it can't access the password or it has no authority. Thanks in advance for your help!

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• When must arbitrary precision arithmetic functions be used in PHP?

  - by Tjorriemorrie

  My colleague uses the Binary Calculator functions in bandwidth calculations; as much as terrabytes, and with percentage splitting on allocation. His usage of these functions appears correct in order not to lose a byte; although he seems to be using them now for everything. The manual only says: For arbitrary precision mathematics PHP offers the Binary Calculator which supports numbers of any size and precision, represented as strings. How much is any size? Is it really necessary? How big is the default float in PHP? Are there any good advice regarding this or things to keep in mind?

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• Multiple copies of JBoss acting as one? [migrated]

  - by scphantm

  I have a few ideas how to solve the problem, but one question about jboss clustering. Please, keep in mind these applications were written very poorly, that is why they require so much memory and there is nothing i can do about that right now. So, I have clustered applications on Jboss where the application was small enough to run on one box. Meaning that one machine could handle the load. But, the current problem is that i have been asked to run several systems on the same environment. Our machines are virtuals and due to limited hardware, are restricted to 8 GB RAM, which gives jboss about 7GB to itself. Unfortunately, that isn't enough to run the group of applications. Im constantly getting heap errors and crashes. If i cluster 2 or 3 jboss instances together, can i run applications that consume more resources than a single box can handle?

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• how to make game objects to contain other objects?

  - by user3161621

  Im pretty undecided about what path to take here. The simplest that comes to mind is just adding a field List to the GameObject class where i would store the things contained in it. But would it be elegant and well tought? And would it be good performance wise?(ofc 99.9% of my objects wouldnt have anything stored in them...) What about deriving a ContainerObject from GameObject? This way only they would have additional fields but then i would have to change many things, my collections of objects would have to become a generic and id have to cast very often into GameObject...

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• Shutdown problem in ubuntu 12.04 LTS

  - by sudeep

  I am using Ubuntu 12.04 LTS and I'm getting a serious bug: When I try to shutdown my system, my screen goes blank but my CPU fan keeps running, i.e. the processor is still working but I am not able to see anything on my screen. I need to power off my machine for a complete shutdown. I am using a desktop with an Intel P4 processor. I found a solution on the internet involving modifying the GRUB config file. But even after doing so I wasn't able to eliminate the issue.

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• Garbled screen after sleep/suspend with nVidia 8800M GTS Ubuntu 11.10

  - by user34062

  Just did a clean install of 11.10, have been using it (and enjoying it!) for about a day now. But it seems that every time I resume from a sleep or blank screen after idling for a while, my desktop, as well as any programs on the screen get "garbled" I had a few windows open and all displayed the same gui glitching except for Chromium (I am guessing because it was minimized to the Unity Launcher, and not currently on the screen when I woke the PC up.) Anyone know what might be causing this, and how I might be able to fix it? I am using a Gateway P-6860FX with a C2D 1.8GHz, and nVidia 8800M GTS 512mb. Screenshot: http://dl.dropbox.com/u/28188839/Screenshot%20at%202011-11-15%2018%3A53%3A25.png NOTE: Yes, I know I misspelled Lothlorien.... .<

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• Would it be possible to make an android app like this?

  - by ThisBetterWork

  I'm fairly new to android development and I'm not sure if the functionality I have in mind for my next project is actually feasible. I wanted to make a simple study guide app...when a user is browsing the web on their phone and they come across information they want to save to their study guide they would be able to highlight the sentence,long-click the highlighted text, and see an option to add it to their study guide(a pop-up list would appear). there would be more functionality than just this, for instance with-in the app you could create different study guide topics (biology,math, English..ect). But in general is it possible to have an app that is accessible by long-clicking when your browsing the web (as opposed to opening the App manually in order to use it.) -- If not, could I make it so you can open a browser within the app to do what I've described? This is going to be a school project so I don't care if it's totally original, I just want to make something simple and practical for practice. -- Thanks in advanced to anyone who helps!! :D

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• Announcing StorageTek VSM 6

  - by uwes

  On 23rd of October Oracle announced the 6th generation StorageTek Virtual Storage Manager system (StorageTek VSM 6). StorageTek VSM 6 provides customers simple, flexible and mainframe class reliability all while reducing a customer’s total cost of ownership: Simple – Efficiently manages data and storage resources according to customer-defined rules, while streamlining overall tape operations Flexible – Engineered with flexibility in mind, can be deployed to meet each enterprise’s unique business requirements  Reliable – Reduces a customer’s exposure by providing superior data protection, end-to-end high availability architecture and closed loop data integrity checking Low Total Cost of Ownership and Investment Protection – Low asset acquisition cost, high-density data center footprint and physical tape energy efficiency keeps customers storage spending within budget For More Information Go To: Oracle.com Tape PageOracle Technology Network Tape Page

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