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• Disk Management

  - by Mars

  I'd like to know what's with all those unnamed drives. I've always thought they are what they say they are (recoveries and what not), why are there so many of them? and why do they all say 100% Free (i.e. they're all empty!). If that's the case, what happened to my recovery? Info: I'm on Dell Inspiron 7520 Windows 8 Single Language (Had Kali installed on SSD a couple of days ago, now I've just deleted that and will install Kali on VM on SSD, that's drive (S:). Screenshot (don't have enough reputation): https://www.dropbox.com/s/y8a1mfkycd5grhq/Screenshot%202014-06-08%2012.06.38.png

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• Random generation of interesting puzzle levels?

  - by monsterfarm

  I'm making a Sokoban-like game i.e. there's a grid that has some crates on it you can push and you have to get the crates on crosses to win the level (although I'm going to add some extra elements to it). Are there any general algorithms or reading material I can look at for how I could go about generating interesting (as in, not trivial to solve) levels for this style of game? I'm aware that random level generators exist for Sokoban but I'm having trouble finding the algorithm descriptions. I'm interested in making a game where the machine can generate lots of levels for me, sorted by difficulty. I'm even willing to constrain the rules of the game to make the level generation easier (e.g. I'll probably limit the grid size to about 7x7). I suspect there are some general ways to do level generation here as I've seen e.g. Traffic Jam-like games (where you have to move blocks around the free some block) with 1000s of levels where each one has a unique solution. One idea I had was to generate a random map in its final state (i.e. where all crates are on top of their crosses) and then the computer would pull (instead of push) these crates around to create a level. The nice property here is that we know the level is solvable. However, I'd need some heuristics to ensure the level was interesting.

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• How do I set up a proxy server for home with bandwidth control, download limit options?

  - by Quakeboy

  3 room mates share a single 2 Mbps connection. Have a 40GB per month download limit beyond which speed drops to 256Kbps which is annoying. One of the roommates abuses the connection by downloading beyond his quota limit. I have a Netgear WNR1000v2 Wireless router + ADSL Modem to connect to the internet. We all access internet via Wireless router which connects to ADSL Modem. I need a free proxy solution which can help me set 40GB / 3 (13 GB) limit for each person (every person has 2 devices - a PC and a phone with Wifi) Uniform Bandwidth control - when 2 people browse the internet they should get 1 Mbps each, and when 3 people access, they should get 2Mbps divided by 3. After each person crosses their monthly download limit, they should be able to access the internet with 256Kbps speed only or lesser. Can I have a custom firmware on my wireless router do this (or) Do I need a proxy server ? Please point me to any relevant tutorials (for example with Squid).

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• cp -u is illegal on mac. What are the alternatives?

  - by Barnabas Szabolcs

  I have a MacbookPro Lion, and I have tried to archive my files that is tried to copy and overwrite if the source is newer than the destination. I tried the following command cp -u source destination but it says, -u is illegal. I also did not find --update or -u in the man cp. Can you please help, what can I do in this situation? [I have the question moved over here from SO, so feel free to answer it once more. I hope this is the right way of dealing with this]

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• Hosing website on own server. What is Hardware requirement and Cost [closed]

  - by KuKu

  As i am about to finish my dream website, i need to host it on some server. I checked Amazon AWS Free Tier, i found it pretty complex. As i made full website in java(JSP + Servlet + mysql + Node.js), its been expensive to host. So i thought that why not to host on own server so that i will be fully dependent on my resources, not on any one else. And i know, in future i need to pay more and more to the other hosting company(because of uploading images and number of incoming users). So my question is, On initial stage what kind of hardware i will required. What can be the cost of that hardware? I already have 12MBPS broadband connection, will it be sufficient? It has static IP Address as well.

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• Remove MySQL ibdata1 without dumping and restoring existing proper databases

  - by Halfgaar

  My MySQL server contains two 100+ GB big databases. One was created with innodb_file_per_table and one wasn't. The one that wasn't, has been dumped, ready to be reloaded. However, the ibdata1 file is still huge and I don't have enough free space. Normal advice in this situation is to dump and remove each database, stop MySQL, then remove ibdata1 and the transaction logs, and then reload the databases. My specific question is: can I leave databases that were created with innodb_file_per_table alone? Or will they be destroyed when I remove ibdata1, even though all their files are separate? I can't afford to take this database off-line to dump and reload it. And because it's already properly made with separate files per table, it would feel pretty useless.

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• Good resources for learning modern OpenGL (3.0 or later)?

  - by MatterGoal

  I stumble upon the search of a good resource to start with OpenGL (3.0 or later) . Well, I found a lot of books but none of them can be considered a good resource! Here two examples: OpenGL Programming Guide (7th edition) http://www.amazon.com/exec/obidos/ASIN/0321552628/khongrou-20 This is FULL of deprecated material! Almost every chapters begin with a note about that. OpenGL Superbible (5th Edition) http://www.amazon.com/exec/obidos/ASIN/0321712617/khongrou-20 This book uses a library created by the author to explain the main arguments, hiding what you want to learn! I don't want to learn how to use your library! I want to learn OpenGL! I hope that you understand this is not the same question like "hey I'm not able to use Google... tell me how to learn OpenGL". I've just finished a full and deep search but I can't find a good and complete resource to learn the "new" OpenGL avoiding deprecated topics. Can someone heading me in the right direction? I know C++ and I have 10 years of experience in development... where I can find a good resource?! I want to spend time on it and I want to learn deeply. (please feel free to edit my question, my English is terrible!)

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• What kinds of languages would be most useful for this kind of webapp?

  - by Caedar

  I've had some experience with programming in the past (2-3 years of C++ self-teaching), so I'm no stranger to the programming process, but there are so many languages out there that I'm lost when thinking about this project idea that's been floating around my head: I would like to create a webapp that would be used for helping somebody figure out what kinds of productivity tools would suit them. The first part of the app would basically be a survey with a variety of questions that would help weed out tools that wouldn't be useful for them. (Slider bar between minimalist and maximizer, slider bar between all free apps and no cost limit, checkboxes on what platforms are required, etc.) While the person is filling out the survey, they will see a web of applications, webapps, and other tools forming on the screen with links showing the relationships the programs have with eachother (syncing supported, good combinations of apps, etc.), along with a list of applications below sorted by general use (notetaking, document organization, storage, etc.) I would imagine that each program entered into the database that will be accessed would have a certain set of characteristics, ie. price, user friendliness, platforms supported, general uses, etc. and the survey would be designed to correlate to those elements and remove programs that don't match the criteria set. The difficult part of this entire process would be getting the web of applications to arrange itself and render properly. Now that I've finished mind-dumping, onto my question: What kinds/combinations of programming languages would you imagine being useful for this kind of project, and why? I learn best by setting up a project for myself like this one and tinkering with the languages, so I don't mind if the end product is out of reach from my current skill level. I'd just like some guidance so I don't fumble in the dark for too long.

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• Windows xp keeps rebooting itself every morning at 8am?

  - by mark

  Hi, I've got windows xp sp3. It seems to restart itself every morning at 8am (judging by the windows logs, I can see all apps log a startup at 8am every day). Whenever I get to the machine in the morning (around 9 am) I see it's rebooted. I've checked that automatic updates are off, and that the power management settings are set to "always on". I'm not sure what else could be causing the machine to reboot, not sure where to start looking. Any ideas? Thanks ---------- update ---------------- Just looking at the Event Viewer, I see a log message at 8:00:47am every day, which looks like a reboot log statement: Microsoft (R) Windows (R) 5.01.2600 Service Pack 3 Multiprocessor Free. For more information, see Help and Support Center at ...

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• Can you span a single file share across multiple servers?

  - by Mike C.

  Let's say I have one large file server that has a company-wide share. That file server constantly runs into space issues. Now let's say I have a dozen or so random servers (print servers, web servers, etc) that have a ton of free space. Is there a way to utilize that in the company-wide file share? Like spanning the storage across different servers but making that transparent to the user? I know the likely answer is going to be get more storage for the file server, but I just curious if this is conceptually possible. Thanks!

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• How to schedule download of windows 7 updates?

  - by atoMerz

  To put it short: I'd like to schedule my windows updates to start/stop at certain times of day. How can I do this? More explanation: This is because my internet traffic is limited by ISP and it's free only during a specific period throughout the day (2:00am-7:00am). I've set windows update setting to check for updates but notify me before downloading in order to prevent it from automatically using up my traffic. But then I have to manually tell it when to start downloading. I obviously don't want to stay up that late just to push a button. So again, how can I schedule windows updates to start/stop at specified times?

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• EC2: map multiple applications to different domains

  - by EsseTi

  i'm playing with EC2 and i've been able to create my instance that has a django appliacation on port 80, and a tomcat on 8080. now, with elastic IP i can manage to redirect my domain to django application. now i would like to map subdomains to each tomact applications. for example django app (ec2...:80) --> mydomain.com tomcat (ec2...:8080) --> tomcat.mydomain.com webbapp1 (ec2...:8080/webapp1/) --> webapp1.mydomain.com is this possible with the free account? ciao

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• Remote screen control software (such as VNC) with permission mechanism

  - by xuhdev

  Does anyone know a kind of software that allows controlling of other computer, but the server can configure permission control? For example, the server can define five users, one of them can control, but the other four of them can only view. Also, file transfer support is required. I've tried TightVNC, it works fine with anything else, but it just does not support user permission control. RAdmin can serve this job, but I wish to find some software which is free. Thank you!

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• Forcing Windows to be 'awake' during certain hours?

  - by Mun

  I'm running Windows 7 and have the power options currently set up to put the machine to sleep after 2 hours of inactivity. Is there any way to force the machine not to sleep between certain hours, or to automatically wake up? I'm assuming this can't be done directly from within the Windows power settings, but is there a third party utility (preferably free) that could take care of this? I've got backups scheduled every morning at 3-4am, and these don't run if the machine is suspended, so I just need to make sure that the everything is powered up during this time.

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• Squid gives always tcp_miss reverse proxy

  - by JaakL

  I added installed latest squid3 in front of apache as reverse proxy. The problem is that it gives always tcp_miss, in fact I have not yet found a single TCP_HIT message in the log file, and most of the content is static. Relevant config values for cache_dir and refresh_pattern are default ones, directory /var/spool/squid3 exists and has some files/folders. I have 100+G free storage, but reconfigure gives warning "WARNING cache_mem is larger than total disk cache space!", which does not make any sense to me. I have googled a lot and seen with similar problems, but none of them has helped.

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• Ubuntu 12.10 Quantal Quetzal and AMD 12.11 Beta Driver

  - by White

  I'm using a Quantal AMDx64 install and a XFX Radeon HD5850 video card. I first enabled restricted drivers through additional drivers, but it resulted in breaking Unity and Compiz (I can only see my wallpaper and shortcuts. But the terminal still works and Nautilus too, however, without Close/Maximize/Minimize and slower). Then I uninstalled it and everything went back to normal. Then I installed it via terminal (12.10 version), and the result was the same. Then I downloaded it via ATI's web site (12.11 beta) and installed the .run file using the terminal, but the result was yet again the same. Then I went to the terminal and entered these commands: sudo apt-get remove --purge fglrx fglrx_* fglrx-amdcccle* fglrx-dev* - It said it had nothing to uninstall sudo rm /ect/x11/xorg.conf - No such directory sudo dpkg-reconfigure xserver-xorg sudo startx sudo cp/ect/x11/xorg.conf.orig /ect/x11/xorg.conf - Also, no such directory sudo aticonfig --initial sudo reboot Then, I was presented with the log in screen, but when I tried to login (with my account), it flashed a black screen and then threw me back. Guest account still works (without unity and compiz, tough) and I can still use TTY. And I also got the "AMD Testing Only" watermark. Then I figured that I should stop messing with the terminal and get help before I unleashed Apocalypse XD. Side notes: My Ubuntu is installed on a ext4 partition with 60GB, and I dual boot with Windows 7 (at least for now). My internet is a 50kbps 3G-ish, so downloading even small files is a pain, let alone a video driver. I would rather not reinstall the O.S., it was a herculean task to download everything I had in there, and I have very little free disk space for backups. I'm still new to Ubuntu (I know some basic commands), and I don't know how to debug, so please, be patient XD And using Windows, my internet is even slower (is that possible?), so it kind of leaves a torture aftertaste xD. So, if you guys could answer quickly, it would be greatly appreciated. Thanks in advance. If you need any info, just ask (and explain how to get it XD).

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• I need a form to tie MySQL Records together (i.e., many-to-many relationships).

  - by John R

  I need a HTML-based form to tie database records together. The user scenario that I envision is somthing like this: A super-user does a search of the database and is delivered a table of records based on that search; each record is numbered with the database-record id. There would also be two text fields next to each record. These text fields would allow: the user to make a reference from one record to another. For example, a user could enter into record id #457 that there is a correlation with record ID #242. The user would also describe the type of relationship it is. This could be with a simple integer that represents the type of relationship between the two records. When the super-user hits the submit button, all of these relationships are saved in a mySqljoin table. One option is to give me advice on how to implement and code this myself in PHP. However, before I reinvent the wheel, another option is to lead me to a free script that does something similar.

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• Windows HOSTS File

  - by jdp

  I have a network of computers and a server. I often need to edit the hosts file of all the computers to add a new entry or to change one. e.g. 192.168.1.101 temporary-internal-site How can I get all the machines (all windows) to 'import' or use a hosts file on a server in addition to the normal one. This means that I can just edit this one file with the new entry and all the machines will check it. Feel free to ask questions if you don't understand.

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• High system cpu load (%sys), system locks

  - by Mark

  For the last two weeks we are having intermittent severe spikes in system cpu usage (shown as %sys), which last for maybe half a minute, locking most processes, including ssh. I've been trying to figure this out, but atop doesn't show anything relevant (system usage for processes it shows is insignificant), spikes are intermittent and I could not reproduce the spike using any workload for the web application this webserver hosts. If you have any ideas on how to debug high %sys and (sometimes) %si CPU usage, please share them. System specs (don't know if any of this is relevant): Dedicated server, CentOS 6, core i7 950, consistent 4 to 8 GB RAM free at any time, hard drives are in RAID-1. Additional info: dmesg output doesn't change between spikes /var/log/messages doesn't change between spikes Here is cat /proc/vmstat Here is output of mpstat 1 during a typical spike Add 07.11.11: looks like simple reboot restored system state, and we might never know what caused the disturbance in first place.

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• How can I create a bootable CD-ROM/USB Drive? (With NTFS + USB Drive support)

  - by RonK

  My motherboard got fried and I was forced to get a new hardware set (MB+CPU+RAM) so in most likelyhood I'll need to reinstall my Windows 7. I usually follow procedure and put the OS on the primary partition and my data on a logical partition - so I can format the primary without concern - but this time I made a mistakte and left some crucial items on the primary partition. I want to create a bootable CD-ROM/USB Drive which can read NTFS so I can access this data. If booting via a CD-ROM, I would prefer being able to connect a disk-on-key/My Passport to the computer and be able to access it to transfer the data to it. How can I do it? (free 3rd party applications are most welcome)

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• Windows 8 "ate" 100GB of my SSD

  - by Eleeist

  Yesterday I've done a completely fresh Windows 8 Pro install on brand new Samsung SSD. I recall that just after the installation Windows was taking about 10GB. I've installed all the updates and when today I entered My Computer I've almost got a heart attack: disk C: 12.3 GB free of 118 GB! The file explorer, when I enter the disk highlight everything and go to Properties, tells me that the files in there take only 22.5 GB of space which seems reasonable. So where is my 100 GB?

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• How to backup old emails locally in Thunderbird and then remove them from IMAP server?

  - by saicode

  I am using Godaddy IMAP email with Thunderbird as my desktop client on Windows 7. The email service has unlimited mailbox size but the local Thunderbird is having troubles due to the large size of the inbox/outbox. I would like to take out old emails from IMAP server and backup them locally. After backing up the old email I would like to delete old email (older than let's say, 2012) from the server. Also I'd like to have them accessible from the local backup if ever needed in the future. This way I might be able to make Thunderbird fast and problem free. Problem is, I am not able to find any instruction to do this in an automated way based on dates etc. I can find some links for Archiving, Compacting and Backup. But unable to find any tutorial about how to backup and archive it locally and delete the original emails from the server.

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• How do you create a report in Word (or other documentation software) that is linked directly with Ex

  - by NoCatharsis

  I believe my question may be best answered by using Access since that's more what it's made for. However, I don't have a license for Access here at work and trying to get one is pulling teeth. So I'm curious if there is any way to compile reports with data in an Excel 2007 sheet. The output can be .doc, .docx, .pdf - or anything else if there's a decent piece of free 3rd party software. This might be easiest solved by just creating another sheet in the same workbook and directly linking to the data I want to display in a report-esque format. But I wanted to see if SU could offer some more creative solutions.

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• How should a small team using multiple OS's deploy over github?

  - by Toby

  We have a small development team that have recently moved to using github to host our projects. The team consists of three developers, 2 on Windows and 1 on Mac. I am currently researching the best way to deploy applications to our Linux servers (dev and production). Capistrano running locally would be ideal but from what I read this won't work for Windows machines. It looks like the best way is to use a post-receive hook in github, I can see how this would work for auto deploying to dev, but I don't see how we could then deploy to live. I have found paid projects like http://www.deployhq.com/ but it feels like something that a quick bit of code should be able to do for free, I just can't seem to get myself pointed in the right direction! I was wondering what would be considered best practice for small team deployment involving multiple local OS's and github.

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• Dictionary-based text auto-completion in Windows (i.e. Mozilla Thunderbird e-mail client)?

  - by None

  Most programmer's text editors and IDEs have it, automatic completion of the first few characters (letters) of a keyword or function name. Also, most address bars or search fields feature this (like the tag input below the posting form). I would like the same for a few, often-occuring words in business correspondance. Since I could not find an extension for the application in question, Mozilla Thunderbird, I would like to know if there are applications or methods that suggest the complete words from a dictionary like sup per eruser erfluent PS: Here's an article on Wikipedia: Word completion Here's a product for $25: Type Booster Ideally, the solution is free.

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