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• is it worth defragging an iPod

  - by alimack

  Essentially my 5G iPod was cutting tracks off and generally misbehaving. So I did the following: 1) Use Diskwarrior - heavy directory fragmentation which it fixed; 2) Use iDefrag - some fragmentation but it kept halting as it couldn't move files; 3) Try to write out drive with Disk Utility - got a warning from DU so gave up before I started; 4) Completely restored using iTunes; 5) Reran Diskwarrior - still heavy directory fragmentation; 6) Reran iDefrag, still fragmentation although limited to two bands; The iPod is much quicker to traverse menus and no more track skipping. My question is this - is defragging worth it or does the heat generated by the process kill the drive and make it a self-defeating process. Anyone have any metrics/ figures? Clearly it's a bad idea for solid state drives like the nano & touch.

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• Batch OCR for many PDF files (not already OCRed) ?

  - by David

  Hello, I use Google Desktop Search (I am on Vista) and not all my PDF files are recognized in my archive folder. It is normal as "PDF files that contain scanned images" are not indexed (http://desktop.google.com/support/bin/answer.py?hl=en&answer=90651) So I would like to OCR many of my PDF files that are not already OCRed. My goal : I give the program a folder and it search alone in the subfolders the PDF files that need to be converted into PDF-OCRed files. Note: In the past, if a PDF file was password protected, I removed the password with another batch (paying) tool: verypdf.com "pwdremover" Any (not too much expensive) idea ? I already tried : Finereader 6 pro on xp at the time, but there was no batch processor included... Paperfile paperfile.net which uses Tesseract code.google.com/p/tesseract-ocr/. But the OCR is only PDF to text, not PDF to PDF! There is also another project code.google.com/p/ocropus Thanks in advance ;)

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• Symbolic link to text editor (Sublime) on Mac

  - by Michael

  I'm following along with this tutorial on how to use Sublime text editor https://tutsplus.com/lesson/services-and-opening-sublime-from-the-terminal/ . It gives instructions to enter the following command to enable opening of Sublime in the terminal. ln -s "/Applications/Sublime Text 2.app/Contents/SharedSupport/bin/subl" /bin/subl After creating that link, it says I should be able to do subl . to open all the files in a folder in Sublime. However, when I do it, it says -bash: subl: command not found My system says the file exists ln: /bin/subl: File exists Any idea what I can do?

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• PKI Issuing CA on Domain Controllers

  - by dunxd

  I am setting up a PKI which will initially be used internally. As we may grow our use of this I have opted for a three tier hierarchy - Offline Root and Policy CAs (one Policy CA at the moment for internal use), and online issuing CAs. We had initially discussed using our Domain Controllers as the Issuing CAs rather than setting up dedicated ones. I am now starting to have doubts about whether it is a good idea to have our DCs do certificate issuing. We have less than 1000 users, so our DCs aren't hugely taxed. Does anyone have any suggestions for or against doing this? We are currently running Windows 2003 Active Directory, but will be upgrading to Windows 2008 in the coming year. I'm setting up Windows 2008 PKI.

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• Which problem(s) do YOU want to see solved?

  - by buu700

  My team and I are meeting tonight to come up with a business plan and some community input would be amazing. I've been mulling over this issue for the past few months and bouncing ideas off of others, and now I'd finally like some input from the community. I have come up with a fair selection of ideas, but most of those amount to either fun projects which could potentially be profitable, or otherwise solid business models that have one or two major hurdles (usually related to resources or legality). For our team meeting tonight, my idea is to take inventory of our available skills, resources, and compelling problems which interest us. The last is where I would greatly appreciate some community input. Hell, even entire business ideas/plans would be appreciated. No matter how big or small your thoughts, any input would be appreciated. We're a team of computer scientists, so our business will be primarily based around software/technology/Web solutions. Among my relevant available resources (entire Internet aside), I have the following: A pretty reliable connection to an SEO company a large production company. A stash of fairly powerful server hardware. A fast network with static IPs. The backend for Hackswipe, which includes credit card payment processing and a Google Voice-based SMS gateway. This work in progress design for something completely unrelated but which is backed by some fairly decent infrastructure. Direct access to the experts in just about any relevant field (on-campus Carnegie Mellon professors). A sexual relationship with the baron of a small nation. For further down the line, some investor relationships. Not likely to be so relevant, but a decent social media presence (Stack Overflow reputation, modship in some major reddits, various tech forums). The source code for Eugene fucking McCabe. Pooled with the other team members, the list of projects we can build off of would be longer (including an Android app). So, what are your thoughts? Crossposted to reddit

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• Unable to record sound from web browser (firefox / chromium ) using recordmydesktop

  - by thamurath

  I have to do some screencast tutorials and i am using recordmydesktop with gtk frontend to do it. I need to record also the sound and here is where i have found the problem. It took me some time, but now I can record the sound from almost every application in my desktop ... almost. I need to capture some sound from a web application using java, but when i load the page nothing appears in the playback tab of pavucontrol. I think this is the problem, because if there is no sound stream i think the recordmydesktop program thinks there is no sound to record ... the funny thing is that I can ear the sound in my speakers! I have tried with Firefox and Chromium with no success. Although I have been able to record youtube videos without problem, so it seems that java is the key here. Any suggestion or idea? P.S.: I am using Ubuntu 11.10 with this configuration. ( if more information is needed please let me know) sight i cannot post images ... so I have an audigy2 sound card using Analog Stereo Output profile. I have also an "Internal Audio" device, but i have it with the "Off" profile. In recordmydesktop-Advanced-Sound: Device = default

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• Calculating the "power" of a player in a "Defend Your Castle" type game

  - by Jesse Emond

  I'm a making a "Defend Your Castle" type game, where each player has a castle and must send units to destroy the opponent's castle. It looks like this (and yeah, this is the actual game, not a quick paint drawing..): Now, I'm trying to implement the AI of the opponent, and I'd like to create 4 different AI levels: Easy, Normal, Hard and Hardcore. I've never made any "serious" AI before and I'd like to create a quite complete one this time. My idea is to calculate a player's "power" score, based on the current health of its castle and the individual "power" score of its units. Then, the AI would just try to keep a score close to the player's one(Easy would stay below it, Normal would stay near it and Hard would try to get above it). But I just don't know how to calculate a player's power score. There are just too many variables to take into account and I don't know how to properly use them to create one significant number(the power level). Could anyone help me out on this one? Here are the variables that should influence a player's power score: Current castle health, the unit's total health, damage, speed and attack range. Also, the player can have increased Income(the money bag), damage(the + Damage) and speed(the + speed)... How could I include them in the score? I'm really stuck here... Or is there an other way that I could implement AI for this type of game? Thanks for your precious time.

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• Is there a simple Load Balancer app for development environment on Windows?

  - by djangofan

  Does there exist a simple Load Balancer app for development on Windows? I am running a pair of JBoss 5.x instances in a cluster on a single machine. Normally , this configuration is load balanced by a nice hardware load balancer but I am wondering if there is a simple piece of software to enable load balancing in my Eclipse dev environment. Basically, for example, I want a load balancer running on port 11111 that round-robins between the 2 clustered JBoss instances on ssl ports 8443 and 8543 . (or http port if thats not possible) I know that Glassfish has a built-in load balancer but I can't use Glassfish. One idea I have is to try to setup a separate instance of Tomcat with the "balancer" web app. Im trying that now... not sure if it will work... and its a complicated setup and I wish there was something really easy.

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• How reliable is HDD SMART data?

  - by andahlst

  Based on SMART data, you can judge the health of a disk, at least that is the idea. If I, for instance, run sudo smartctl -H /dev/sda on my ArchLinux laptop, it says that the hard drive passed the self tests and that it should be "healthy" based on this. My question is how reliable this information is, or more specifically: If according to the SMART data this disk is healthy, what are the odds of the disk suddenly failing despite this? This assumes the failure is not due to some catastrophic event that impossibly could have been predicted, such as the laptop falling down on the floor causing the drive heads to hit the disk. If the SMART data does not say the disk is in good shape, what are the odds of the disk failing within some amount of time? Is it possible that there will be false positives and how common are these? Of course, I keep backups no matter what. I am mostly curious.

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• What the Hekaton?

  - by Tony Davis

  Hekaton, the power behind SQL Server 2014′s In-Memory OLTP technology, is intended to make data operations run orders of magnitude faster on SQL Server. This works its magic partly by serving database workloads entirely from main memory, using memory-optimized table structures. It replaces the relational engine’s standard locking model with an optimistic concurrency model based on time-stamped row versions. Deeper down the Hekaton engine uses new, ‘latch free’ data structures. So far, so good, but performance improvements on this scale require a compromise, and the compromise is that these aren’t tables as we understand them. For the database developer, these differences are painful because they involve sacrificing some very important bits of the relational model. Most importantly, Hekaton tables don’t currently support FOREIGN KEY constraints or CHECK constraints, and you can’t put the checks in triggers because there aren’t any DML triggers either. Constraints allow a relational designer to enforce relational integrity and data integrity. Without them, of course, ‘bad data’ can get into our Hekaton tables. There is no easy way of preventing it. For several classes of database and data, this is a show-stopper. One may regard all these restrictions regretfully, seeing limited opportunity to try out Hekaton with current databases, but perhaps there is also a sudden glow of recognition. Isn’t this how we all originally imagined table variables were going to be, back in SQL 2005? And they have much the same restrictions. Maybe, instead of pretending that a currently-designed database can be ‘Hekatonized’ with a few mouse clicks, we should redesign databases for SQL 2014 to replace table variables with Hekaton tables, exploiting this technology for fast intermediate processing, and for the most part forget, for now, the idea of trying to convert our base relational tables into Hekaton tables. Few database developers would be averse to having their working tables running an order of magnitude faster, as long as it didn’t compromise the integrity of the data in the base tables.

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• I'm looking for a monitor tool to test Jitter, ICMP, Traceroute and other network issues

  - by Elad Dotan

  I'm looking for a monitor tool to test Jitter, ICMP, Traceroute and other network issues. it could be an application I run from my company Network in NY and London or a SAAS service that have a service that can do it for me. I have a problem in my Data Center that I would like to fix. it happens in different times of the day. I want to run the monitor for few days and save the results so we can analyze them. any idea? Thanks!! Elad.

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• OS X 10.7.5 - telnet: connect to address 10.0.0.12: Operation not permitted

  - by user2169619

  I have troubles to connect from macos to reach windows shares and I hit some general problem with my macos. When I try to telnet to 445 port to my windows share server the macos throws "Operation not permitted". I have no firewall rule and I'm not able to google anything. sh-3.2# telnet 10.0.0.12 445 Trying 10.0.0.12... telnet: connect to address 10.0.0.12: Operation not permitted telnet: Unable to connect to remote host Any idea what can be the reason?

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• Is there a way to legally create a game mod?

  - by Rodrigo Guedes

  Some questions about it: If I create a funny version of a copyrighted game and sell it (crediting the original developers) would it be considered a parody or would I need to pay royalties? If I create a game mod for my own personal use would it be legal? What if I gave it for free to a friend? Is there a general rule about it or it depends on the developer will? P.S.: I'm not talking about cloning games like this question. It's all about a game clearly based on another. Something like "GTA Gotham City" ;) EDIT: This picture that I found over the internet illustrate what I'm talking about: Just in case I was not clear: I never created a mod game. I was just wondering if it would be legally possible before trying to do it. I'm not apologizing piracy. I pay dearly for my games (you guys have no idea how expensive games are in Brazil due to taxes). Once more I say that the question is not about cloning. Cloning is copy something and try to make your version look like a brand new product. Mods are intended to make reference to one or more of its source. I'm not sure if it can be done legally (if I knew I wasn't asking) but I'm sure this question is not a duplicate. Even so, I trust in the moderators and if they close my question I will not be offended - at least I had an opportunity to explain myself and got 1 good answer (by the time I write this, maybe some more will be given later).

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• Strange failure audit in 2003 R2 X64 SP2

  - by Az

  our server is running 2003 R2 X64 SP2, we keep seeing this in clusters of around 4 rapid fire. Sometimes 2 hours, sometimes around 8 hours apart with slight variations. I am also seeing the same blank username and domain in an account locked out message, I have tried disabling all scheduled tasks, if anyone has any idea please let me know! I find these processes running out of svc host: AeLookupSvc, AppMgmt, BITS, Browser, CryptSvc, dmserver, EventSystem, helpsvc, IAS, lanmanserver, lanmanworkstation, Netman, Nla, RasMan, Schedule, seclogon, SENS, SharedAccess, ShellHWDetection, winmgmt, wuauserv, WZCSVC Logon Failure: Reason: Account currently disabled User Name: Domain: Logon Type: 3 Logon Process: Authz Authentication Package: Kerberos Workstation Name: PPCLUBES_TS Caller User Name: PPCLUBES_TS$ Caller Domain: PPCLUBES Caller Logon ID: (0x0,0x3E7) Caller Process ID: 928 Transited Services: - Source Network Address: - Source Port: -

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• How many cron jobs are too many?

  - by guitar-

  I have a couple of cron jobs for basic maintenance which aren't very resource-intensive. I also have custom task scheduling (which is just calling a .php file and passing information via GET, ie: cronjob.php?param1=param ...). These can add up pretty quickly. These just call system commands and run external programs (Nmap is one of them). They usually don't take long either. Anyway, can anyone tell me, roughly what point is too many? I know it's hard to say since it depends on what job is being run and how often, but at what point does the crontab program start "struggling"? Anyone have any idea? Thanks.

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• UEFI Boot Failure - Hang after Printing USB Information

  - by James

  I'm experiencing a really weird boot problem. With both 12.10 and 12.04LTS, the vast majority of kernels (and initrds) that I've tried boot, but hang immediately after printing out information about USB devices. This isn't exactly a full "hang" so to speak, as if I plug in a flash drive, I see information and a /dev/sd* entry printed to the screen. Post/pre-init scripts are not run, there is no handoff, nor busybox or VT prompt. Virtual terminals can't be changed (with Ctrl-Alt-Fx). For what I can see, init may have not been executed yet. With certain kernel and OS combinations however, (specifically 3.2.0-29), I get a full boot and am able to use the OS as if there is no problem. After 3.2.0-29, I've been hard pressed to find a kernel that works. Any idea what's happening or how to fix this? Or even a road to take? I've exhausted the first five pages of Google for every search term I can think of. This is a Lenovo Z580 (i5-3210M) with Phoenix SecureCore Tiano firmware, if that helps any.

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• Hardware compatibility on H97 chipset/hardware support

  - by user3238850

  I am aware that there is documentation about compatibility but it is way out dated. I am also aware that there is a hardware compatibility page on Ubuntu website, but that one is focused on the whole box rather than a single piece of hardware. I have some experience with Linux OS, and some experience playing Ubuntu Server in a virtual machine, but never worked on a machine that lives in the real internet. I am building a home server with an Intel H97 chipset motherboard. I have looked at several models and none of them has Linux in the supported OS category. I have the experience of installing Ubuntu Desktop 14.04 on my 4-years-old lap top, and except for some system errors on start up, there is not too much I can complain about, so I guess I should be fine. However, this time I am going to install Ubuntu Server 14.04 on a relatively new piece of hardware(I went to http://linux-drivers.org/ but found nothing really helpful). For example the ASUS motherboard has M.2 socket and Intel LAN I218V chip, the Gigabyte motherboard has two LAN chips(Intel LAN WGI217V and ATHEROS AR8161-BL3A-R). So I really want to make sure everything will work. Usually I would just trust Ubuntu and buy all hardware I need, but basing on my past experience with the Ubuntu Desktop version on my lap top, I am not so convinced. There is an easily noticeable difference: when the system is idle, the fan runs much more frequently and longer under Ubuntu. This leads to my suspicion that generally hardware will have worse support for Ubuntu, which is no surprising at all but enough for me to put this post here. And as far as I know, some Intel CPU features come with software that usually will not run under Linux. Any help, idea or thoughts would be greatly appreciated!

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• Problems Running Cherokee Web Server Admin - config_reader.c:249 - Parsing error

  - by Sebastian

  I'm running Cherokee web server 0.99.30 on (Ubuntu Hardy) and I have been having some issues getting the admin to run property. When I run sudo cherokee-admin -b Login: User: admin One-time Password: {password} Web Interface: URL: http://localhost:9090/ [20/11/2009 22:57:29.733] (error) config_reader.c:249 - Parsing error Cherokee Web Server 0.99.30 (Nov 20 2009): Listening on port ALL:9090, TLS disabled, IPv6 disabled, using epoll, 4096 fds system limit, max. 2041 connections, caching I/O, single thread When I go to the admin page I get a 503 Service Unavailable error page. Any idea about how I could fix this? Thanks

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• WPF and Composite Application Library &ndash; Missing The Point

  - by David Totzke

  I have a headache and it’s not even 9AM yet.  Well, ok, it’s nearly ten here now in GMT –5 but it’s before nine somewhere still. Sometimes people will miss the point of something so utterly and completely that one is left wondering how such a person can even dress themselves. Writing an application using WPF and the Composite Application Library (Prism) means that one must learn the various programming idioms common to these frameworks.  The Windows Forms event driven model simply will not suffice.  You need to come to grips with the idea of a very loosely coupled application.  Concepts that must be absorbed and internalized include Data Binding, Control and Data Templates, Commands, Dependency Injection, and Inversion of Control, as well as the Supervising Controller, Presentation Model and Model-View-View-Model patterns. It is as simple as that.  Not to embrace these concepts is to invite pain.  It is to invite noodles; and not the holy kind. Someone actually said to me that “just because it’s not WPF, doesn’t mean it’s wrong.”  And he’s right.  Unless, of course, you are writing a WPF application and especially if you are using the Composite Application Library. In simple terms then; YOU’RE DOING IT WRONG!   Dave Just because I can…

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• Giving PHP the permission to make a git pull request

  - by Bernd

  I would like to allow PHP to execute a Git pull command. But there are some problems with the user and permissions. How did you solve the problem? PHP runs as user www-data. Therefore I've changed the .git directory owner/group to www-data (chown www-data:www-data -R .git). As it is turned out later www-data has no SSH keys. Is it a good idea to give it one? If yes where to place? Or is it possible to allow it to use a specific key. Best regards, Bernd

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• There are no drives listed during windows 7 system recovery

  - by Kragen

  I'm trying to use the Windows 7 system recovery disk to repair a boot sector, however I'm finding that when I boot the recovery disk, it doesn't list / mount any of my disk partitions, and so I can't perform the recovery. The partitions are all NTFS formatted, and the drivers used to read the disks all seem to be fairly straightforward Microsoft drivers, so I shouldn't need to load any extra drivers to see my partitions (its a Dell Latitude D530) Diskpart correctly lists the partitions (complete with labels) - it just that when I attempt to switch to that partition it gives me the "This partition does not contain a recognised file system" message. Has anyone got any idea how I can work out why my partitions are not visible?

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• OpenBSD in a virtual box as a firewall

  - by Ali

  Is there any merit in installing a virtual machine with OpenBSD and pf (or any other simple and secure OS + iptable) on a mac laptop and routing all the traffic through that machine? I read a similar set up for corporate laptops running windows (I thing I read this in BSD magazine). They claim that Windows machines are too hard to secure and if you are taking them to the wild (public wireless, hotels, ...) you'd better but a secure OS in between! If you think this is a good idea, how you route all the traffic on a mac through the virtual machine and prevent any application or service to go directly? I am not sure if just setting the gateway will do that, what about DNS? you don't want anybody to fool you with DNS cache poisoning or similar attacks either.

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• Meta key in Terminal.app vs national characters

  - by yacoob

  I'm using Terminal.app, and I'd like to use emacs running inside - either locally, or after sshing to remote server. Problem is, I can't get working Meta modifier. Namely, if I enable 'Use option as meta key', Option key works like proper Meta, but I lose ability to enter Polish diacritics (aelósznzc), that are entered with right Option. If I disable 'Use option as meta key', my Meta is gone, but I can again use Polish characters. In this state they appear only with right Option modifier, so I guess it's Terminal.app's fault that it doesn't make a difference between left and right Option key, when the relevant preference is selected. What are my options then? Is there a good solution for my problem? I can always use ESC as a poor man's Meta replacement, but I don't like that idea.

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• after redmine install i see only the filesystem

  - by derty

  After installing redmine, i cann only access the filesystem! I reinstalled redmine 2-3 times in different ways. Used this "how to"s: http://www.redmine.org/projects/redmine/wiki/HowTo_Install_Redmine_using_Debian_package http://www.redmine.org/projects/redmine/wiki/HowTo_Install_Redmine_210_on_Debian_Squeeze_with_Apache_Passenger http://beeznest.wordpress.com/2012/09/20/installing-redmine-2-1-on-debian-squeeze-with-apache-modpassenger/ the webserver of 10.0.0.14 is going to be behind a reverse apache proxy. but for know i'm working directly in the system. This change wouldn't be a problem. I use this on a bunch of other services. The Database does exist and i can enter it. The configuration file config/database.yml is set up right, with the data i use to enter as redmineuser. So does one have an idea why it is not working like i wish?

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• A website to compare software/hardware/electronics?

  - by liori

  Hello, When choosing software or hardware I often Wikipedia's comparision pages like the page on Comparison of project management software. However, criteria on including items on such lists are sometimes unclear (f.e. project has to be "notable", has to have a Wikipedia page), and the number of compared features are limited. Also, Wikipedia's software doesn't make it easy to edit such lists. I am looking for an external webapp/website that would do the task of comparing different solutions in the world of software, hardware, maybe even electronics, in this kind of social way. Is there any kind of such service? It should allow users to add new entries, add new features to compare and discuss items in a collaborative way. It should be also easy to browse already entered items, filter by features. (this might be a good idea for a startup ;-))

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