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  • What You Said: How You Set Up a Novice-Proof Computer

    - by Jason Fitzpatrick
    Earlier this week we asked you to share your tips and tricks for setting up a novice-proof computer; read on to see how your fellow readers ensure friends and relatives have a well protected computer. Image available as wallpaper here. If you only listen to a single bit of advice from your fellow readers, let that advice be the importance of separate and non-administrative user accounts. Grant writes: I have two boys, now 8 and 10, who have been using the computer since age 2. I set them up on Linux (Debian first, now Ubuntu) with a limited rights account. They can only make a mess of their own area. Worst case, empty their home directory and let them start over. I have to install software for them, but they can’t break the machine without causing physical damage (hammers, water, etc.) My wife was on Windows, and I was on Debian, and before they had their own, they knew they could only use my computer, and only logged in as themselves. All accounts were password protected, so that was easy to enforce. What Is the Purpose of the “Do Not Cover This Hole” Hole on Hard Drives? How To Log Into The Desktop, Add a Start Menu, and Disable Hot Corners in Windows 8 HTG Explains: Why You Shouldn’t Use a Task Killer On Android

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  • Impact Earth Lets You Simulate Asteroid Impacts

    - by Jason Fitzpatrick
    If you’re looking for a little morbid simulation to cap off your Friday afternoon, this interactive asteroid impact simulator makes it easy to the results of asteroid impacts big and small. The simulator is the result of a collaboration between Purdue University and the Imperial College of London. You can adjust the size, density, impact angle, and impact velocity of the asteroid as well as change the target from water to land. The only feature missing is the ability to select a specific location as the point of impact (if you want to know what a direct strike to Paris would yield, for example, you’ll have to do your own layering). Once you plug all that information in, you’re treated to a little 3D animation as the simulator crunches the numbers. After it finishes you’ll see a breakdown of a variety of effects including the size of the crater, the energy of the impact, seismic effects, and more. Hit up the link below to take it for a spin. Impact Earth [via Boing Boing] How To Delete, Move, or Rename Locked Files in Windows HTG Explains: Why Screen Savers Are No Longer Necessary 6 Ways Windows 8 Is More Secure Than Windows 7

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  • Employers and intellectual property 2

    - by Rick
    I have a question about intellectual property, I am currently a manager in a small manufacturing firm. The owners are driven by greed and don't appreciate the development process of complex machinery and are happy just to send things out half done. I on the other hand think that it should be done properly as breakdown in the field can be costly, embarrassing. They seem to have all of us running around doing most of the work out of hours using the attitude of "Be grateful to have a job" yet no one has a contract or any security or any agreement in place. For a couple of the projects i am using PLC's and doing the code in my own time and the testing during company time, and i am aware that they cannot support their own machines if i left, but as i created the code in my own time who owns it? The have asked my to put in a shutdown code for a maintenance request after a given length of time, could this be classed as criminal damage or anything illegal apart from immoral? (we sell the machines with 12 month warrantee, shut down after) But as time goes on I'm getting rather fed up of the companies attitude toward the client. I am considering keeping the clients as my own and get them to contact me directly In the shutdown code. By doing something like this is a trial version contact me for a full license? I wouldn't feel bad for my current employer as he is not afraid to S***t on people as he has been evolved in numerous law suits and has over 30 failed companies leaving people and customers high and dry, we have took the company this far on the reputation of the workers and and i can see things heading like all the other companies he has owned and taking our reputations with him. So i suppose now i have set the scene, if i code into it to contact me directly in the shutdown could there be any legal impact on me, as i rightly or wrongly think i own the code and designs? Cheers R

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  • Is Windows Server 2003 on 96 MB possible?

    - by Nifle
    I have an old laptop, a Pentium II with 96 MB. I have had Windows 2000 on it for ages, it was slow but usable. But now I have to upgrade since I can't get my USB-wlan drivers to install (the old PCMCIA network card broke). I would prefer to install Windows XP but I have no spare licence, but I do have a Windows Server 2003 licence. Do you think it's possible (and usable) to squeeze in 2003 on this computer? Edit: Unfortunately 2003 simply refuses to install on the laptop. It hangs with an error message (paraphrased) 2003 has detected a problem with your computer and has halted the installation to prevent damage. And then some error codes This happens very early in the installation while it's copying the installation files just after I accepted the licence. So I give up for now.

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  • Need efficient way to keep enemy from getting hit multiple times by same source

    - by TenFour04
    My game's a simple 2D one, but this probably applies to many types of scenarios. Suppose my player has a sword, or a gun that shoots a projectile that can pass through and hit multiple enemies. While the sword is swinging, there is a duration where I am checking for the sword making contact with any enemy on every frame. But once an enemy is hit by that sword, I don't want him to continue getting hit over and over as the sword follows through. (I do want the sword to continue checking whether it is hitting other enemies.) I've thought of a couple different approaches (below), but they don't seem like good ones to me. I'm looking for a way that doesn't force cross-referencing (I don't want the enemy to have to send a message back to the sword/projectile). And I'd like to avoid generating/resetting multiple array lists with every attack. Each time the sword swings it generates a unique id (maybe by just incrementing a global static long). Every enemy keeps a list of id's of swipes or projectiles that have already hit them, so the enemy knows not to get hurt by something multiple times. Downside is that every enemy may have a big list to compare to. So projectiles and sword swipes would have to broadcast their end-of-life to all enemies and cause a search and remove on every enemy's array list. Seems kind of slow. Each sword swipe or projectile keeps its own list of enemies that it has already hit so it knows not to apply damage. Downsides: Have to generate a new list (probably pull from a pool and clear one) every time a sword is swung or a projectile shot. Also, this breaks down modularity, because now the sword has to send a message to the enemy, and the enemy has to send a message back to the sword. Seems to me that two-way streets like this are a great way to create very difficult-to-find bugs.

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  • Is it safe to use an IDE to SATA power adapter for an extended period of time?

    - by qwertymk
    I just bought a computer from HP and they failed to include SATA power connectors with the power supply other then the one HD and DVD drive. Meanwhile I have two IDE to SATA power adapters that came with my "USB 2.0 to SATA/IDE cable" http://www.amazon.com/USB-2-0-SATA-Cable-Adapter/dp/B001OORN06 3rd pic on the left. I was wondering if I would just open up my computer and use it to plug it my SATA drives to the IDE power sources and mount it to the motherboard, would it damage my drives in the long run or have any other significant effects. A friend told me he knows people who have had their HD burn out because of this

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  • Auto backup a user folder to a usb when usb is plugged in

    - by Azztech Computers
    I'm a computer technician and help customers everyday with their computers and smartphones and have a really basic (i think) request but dont know how to go about it. Customer always come in with broken phones, water damage, needing updates, or just want me to backup their information. I currently have a program that i use when i backup their computers it backups their iOS folder C:\Users\USER\AppData\Roaming\Apple Computer\MobileSync\Backup but what i want is a quick easy way to do this in customers houses. What i require is a way when i plug in a USB drive it AUTOMATICALLY searches for the folder and starts transferring the folder to a predefined folder on the USB drive. This was I can just plug it in and begin work on their computer or phone without the risk of losing their information. I'm sure there is a .bat/.ini file i could use but wondering if someone has already done this or something similar as I would need it to search all the USER folders not just the one I'm logged into. Thanks in advance

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  • Windows 8 not booting from DVD while trying to install in a Ubuntu 14.04 system

    - by Tom
    Currently my system runs on Ubuntu 14.04. Yesterday, I deleted and formatted the partition(C drive) as NTFS in which Windows 7 was installed because Windows 7 was not booting for more than a week. I have a Windows 8 disk and it was able to boot from that disk when there was Windows 7 on my system. After the formatting of C drive yesterday, I tried to install Windows 8 by booting from the disk. Unfortunately, this time no booting happened from the disk. So I pressed F2 during the system start up and checked Boot Device Priority, Optical Drive has the first priority there. So why Windows 8 didn't boot from the disk ? I need to install Windows 8 too in my system without doing any damage to Ubuntu 14.04. How can I do it ?

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  • What is an Acer Converter Port?

    - by ShadowHero
    What is this port "Acer Converter Port"? Very little information can be found on the internet. It's basically the same as miniDP? Can I connect a monitor like Dell U2713H on this one? EDIT From this page: http://acer.custhelp.com/app/answers/detail/a_id/30837/~/frequently-asked-questions-on-the-aspire-r7-series 9. Can I connect a DisplayPort monitor to the Acer Converter Port? The Acer Converter Port uses the same physical port as a Mini DisplayPort, but is designed to connect to an Acer proprietary cable. If you connect a DisplayPort monitor, Acer cannot guarantee the functionality of the monitor. No damage should occur to either monitor or notebook by connecting a Mini DisplayPort cable. So, the question is, can someone confirm this will work for sure?

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  • Issues with hard disk secure erase

    - by John Watson
    I want to completely wipe all the data and both OSes (Ubuntu and Windows 7) from my hard drive. I tried DBAN but it gives me an error and does not run. I am looking for an alternative. After reading some articles online, I came to know that, using a Linux live CD, it can be done using either of following commands. a) sudo dd if=/dev/zero of=/dev/sda b) sudo shred -vfz -n 1 /dev/sda My questions are 1) Which option (a or b) is more secure (wipes everything) and faster? 2) Does either of the options damage the hard drive or anything? I want to use hard drive again i.e. installing Windows and Ubuntu again.

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  • WD Passport Won't Mount

    - by Scott7278
    My WD Passport won't mount. However, it turns on when plugged into my macbook and doesn't make any strange noises. It took a small fall (just a few inches and it was on my couch) and I'm very concerned about physical damage. When I open up disk utility it shows the root 500 GB WD My Passport drive which seems to be OK when I verify it and repair it. However, the "External Hard Drive", the directory underneath the "500 GB WD My Passport drive" is grayed out. When I verify the External Hard Drive it says it needs to be rapaired. When I try and repair it it gives me the following message and does not seem to progress: "Updating boot support partitions for the volume as required." Is there hope for me recovering my data? I stupidly have important data on it that I don't have anywhere else.

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  • Have there been attempts to make object containers that search for valid programs by auto wiring compatible components?

    - by Aaron Anodide
    I hope this post isn't too "Fringe" - I'm sure someone will just kill it if it is :) Three things made me want to reach out about this now: Decoupling is so in the forefront of design. TDD inspires the idea that it doesn't matter how a program comes to exist as long as it works. Seeing how often the adapter pattern is applied to achieve (1). I'm almost sure this has been tried from a memory of reading about it around the year 2000 or so. If I had to guess, it was maybe about and earlier version of the Java Spring framework. At this time we were not so far from days when the belief was that computer programs could exhibit useful emergent behavior. I think the article said it didn't work, but it didn't say it was impossible. I wonder if since then it has been deemed impossible or simply an illusion due to a false assumption of similarity between a brain and a CPU. I know this illusion existed because I had an internship in 1996 where I programmed neural nets that were supposedly going to exhibit "brain damage". STILL, after all that, I'm sitting around this morning and not able to shake the idea that it should be possible to have a method of programming to allow autonomous components to find each other, attempt to collaborate and their outputs evaluated against a set desired results.

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  • File/folder Write/Delete wise, is my server secure?

    - by acidzombie24
    I wanted to know if someone got access to my server by using a nonroot account, how much damage can he do? After i su someuser I used this command to find all files and folders that are writeable. find / -writable >> list.txt Here is the result. Its most /dev/something and /proc/something and these /var/lock /var/run/mysqld/mysqld.sock /var/tmp /var/lib/php5 Is my system secure? /var/tmp makes sense but i am unsure why this user has write access to those folders. Should i change them? stat /var/lib/php5 gives me 1733 which is odd. Why write access? why no read? is this some kind of weird use of a temp file?

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  • Why is my email server in AT&T's blacklist?

    - by legoscia
    I just got this bounce message: <¦¦¦¦¦¦¦¦@att.net>: host scc-mailrelay.att.net[204.127.208.75] said: 521-88.208.246.34 blocked by sbc:blacklist.mailrelay.att.net. 521 DNSRBL: Blocked for abuse. See http://att.net/blocks (in reply to MAIL FROM command) So I'm trying to figure out why our server ended up on their blacklist. The web page link doesn't tell me why, as far as I can see. From a few multi-RBL tools I conclude that our IP is only on the collateral damage lists of uceprotect.net (you can be exempt from that with a paid subscription), and I dearly hope that AT&T doesn't use that. From the mail server logs I see that an email to another @att.net address went through two days ago without being blocked. Does anyone have any ideas how I can find out what went wrong?

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  • why installing mysql-server wants to remove sysvinit

    - by E-rich
    I want to install mysql-server-5.5 in a new Debian Squeeze installation, but when I start to install it I get a warning that I don't see as being a requirement: WARNING: The following essential packages will be removed. This should NOT be done unless you know exactly what you are doing! sysvinit It looks like the upstart package will be installed to replace sysvinit. Will proceeding with the install cause damage? Can you help me understand why sysvinit needs to be removed for mysql-server to be installed? Is there a way to install mysql-server without removing sysvinit?

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  • frequent abnormal shutdowns/system crashes

    - by user110353
    It's been almost 5 days since I have installed Ubuntu and almost 6th time that my laptop has been crashed entirely and it shuts down abnormally. Actually, it heats up and I have to wait for 20 odd minutes before I can turn it on again. A message appears that my PC crashed due to overheating which may damage my hard disk. The crashes happened when I tried to open some application that freeze my PC not even giving me enough time to go to system monitor and end process. Sometimes the culprit application which caused crash is Ever-pad, sometime it's team-viewer, sometimes it's some other. This is something very serious. The last crash occurred at 09:14:40. Kindly click here to view system log. I want to stick to Ubuntu and the same laptop as I had serious issues with Windows and I nearly went out to dump my laptop and purchase a more powerful system. Below are my hw/os specs. Kindly advice on how to resolve this issue Ubuntu 12.10 Kernal 3.5.0-18-generic GNOME 3.6.0 Memory 2.0GB Processor: Genuine Intel CPU [email protected] x 2 Available Disk Space: 63.7 GB Thanks in advance

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  • Windows 7 - cannot access my own external disk

    - by Tomas
    I use Windows 7 Home Premium and external USB disk with NTFS partition. I cannot write-access the my own files on it, even as a member of Admnistrators group! Is there any way how to go around this permission checking, without actually writing some permission information to every folder on it? I have 3 external disks (up to 1TB), and I have thousands hundreds of files on each!!! Doing some permission change, that will actually go recursivelly through all folders on all my disks is plain brain damage!! 1) Is there any way how to change it somehow globally? (like mount options...) .. Or how to go around this annoying permission checking? It was working in Win XP normally! 2) if not, and I must do the recursive operation on all folders, how to do it PERMANENTLY, so that I don't need to do it again on another Windows 7 computer!

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  • Is there such thing like a "refactoring/maintainability group" role in software companies?

    - by dukeofgaming
    So, I work in a company that does embedded software development, other groups focus in the core development of different products' software and my department (which is in another geographical location) which is located at the factory has to deal with software development as well, but across all products, so that we can also fix things quicker when the lines go down due to software problems with the product. In other words, we are generalists while other groups specialize on each product. Thing is, it is kind of hard to get involved in core development when you are distributed geographically (well, I know it really isn't that hard, but there might be unintended cultural/political barriers when it comes to the discipline of collaborating remotely). So I figured that, since we are currently just putting fires out and somewhat being idle/sub-utilized (even though we are a new department, or maybe that is the reason), I thought that a good role for us could be detecting areas of opportunity of refactoring and rearchitecting code and all other implementations that might have to do with stewarding maintainability and modularity. Other groups aren't focused on this because they don't have the time and they have aggressive deadlines, which damage the quality of the code (eternal story of software projects) The thing is that I want my group/department to be recognized by management and other groups with this role officially, and I'm having trouble to come up with a good definition/identity of our group for this matter. So my question is: is this role something that already exists?, or am I the first one to make something like this up?

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  • error while trying to resize the partition

    - by speedox
    im running out of space and i tried to resize the partition using g-parted but i got an error: Checking for bad sectors ... Bad cluster: 0x2904636 - 0x2904636 (1) Bad cluster: 0x290526d - 0x290526e (2) Bad cluster: 0x29052fd - 0x2905300 (4) Bad cluster: 0x2905392 - 0x2905392 (1) Bad cluster: 0x2905425 - 0x2905428 (4) Bad cluster: 0x290555d - 0x2905560 (4) Bad cluster: 0x29055f1 - 0x29055f8 (8) Bad cluster: 0x2905681 - 0x2905688 (8) Bad cluster: 0x29057ac - 0x29057ac (1) Bad cluster: 0x29887dd - 0x29887dd (1) Bad cluster: 0x299a086 - 0x299a086 (1) Bad cluster: 0x348ec05 - 0x348ec05 (1) Bad cluster: 0x353dabb - 0x353dabb (1) Bad cluster: 0x353dba4 - 0x353dba4 (1) Bad cluster: 0x354a162 - 0x354a162 (1) Bad cluster: 0x354a1ce - 0x354a1ce (1) ERROR: This software has detected that the disk has at least 40 bad sectors. **************************************************************************** * WARNING: The disk has bad sector. This means physical damage on the disk * * surface caused by deterioration, manufacturing faults or other reason. * * The reliability of the disk may stay stable or degrade fast. We suggest * * making a full backup urgently by running 'ntfsclone --rescue ...' then * * run 'chkdsk /f /r' on Windows and rebooot it TWICE! Then you can resize * * NTFS safely by additionally using the --bad-sectors option of ntfsresize.* **************************************************************************** I opened the "disk utility" and clicked on "Smart DATA" button I got this image:

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  • Virtualized Development Server for simulating 3-Tier Environment

    - by chris.cyvas
    Hello, I am thinking about buying a new server based development box for development (redundantly redundant, I know ;)). Ideally, I want to run something like ESXi or Xen Hypervisor at the lowest level. Then I want to add (at least) 5 Linux VM's for the following uses: 2 Web Servers 2 Application Servers 1 Database Server I want to load balance the 2 web servers and the 2 application servers and (somewhat obviously) they need to be all networked together to simulate a production environment. Also, it used to be the case that the recommendation was to put each VM on it's own hard drive, but I'm not sure that holds water anymore. Any advice? Does anyone have any advice on how to pull this off? Gotchya's, LookOuts!, etc? Thanks!

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  • How can you easily determine the textureRect for tiled maps in SFML 2.0?

    - by ThePlan
    I'm working on creating a 2d map prototype, and I've come across the rendering bit of it. I have a tilesheet with tiles, each tile is 30x30 pixels, and there's a 1px border to delimitate them. In SFML the usual method of drawing a part of a tilesheet is declaring an IntRect with the rectangle coordinates then calling the setTextureRectangle() method to a sprite. In a small game it would work, but I have well over 45 tiles and adding more every day, I can't declare 45 intRects for every material, the map is not optimized yet, it would get even worse if I would have to call the setTextureRect() method, aside from declaring 45 rectangleInts. How could I simplify this task? All I need is a very simple and flexible solution for extracting a region of the tilesheet. Basically I have a Tile class. I create multiple instances of tiles (vectors) and each tile has a position and a material. I parse a map file and as I parse it I set the materials of the map according to the parsed map file, and all I need to do is render. Basically I need to do something like this: switch(tile.getMaterial()) { case GRASS: material_sprite.setTextureRect(something); window.draw(material_sprite); break; case WATER: material_sprite.setTextureRect(something); window.draw(material_sprite); break; // handle more cases }

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  • Dangers of the pyton eval() statement

    - by LukeP
    I am creating a game. Specifically it is a pokemon battle simulator. I have an sqlite database of moves in which a row looks something like: name | type | Power | Accuracy | PP | Description However, there are some special moves. For said special moves, their damage (and other attributes not shown above, like status effects) may be dependant on certian factors. Rather than create a huge if/else in one of my classes covering the formulas for every one of these moves. I'd rather include another column in the DB that contains a formula in string form, like 'self.health/2'(simplified example). I could then just plug that into eval. I always see people saying to stay away from eval, but from what I can tell, this would be considered an acceptable use, as the dangers of eval only come into play when accepting user input. Am I correct in this assumption, or is there somthing i'm not seeing.

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  • Possible causes for Domain server being unavailable?

    - by serversurfer
    One of our servers was compromised after a user with administrative privileges accidentally loaded a virus from a USB drive on a desktop connected to the domain. The two most obvious symptoms of this were: The server is no longer responding to login attempts The root directory of the drive containing user data has been filled with randomly named empty folders. (Initially it was around a million folders, I've been slowly deleting them.) I've run several virus scans from different vendors and am fairly confident the virus has been removed but the damage is done. I'm hoping the two symptoms are related and that once the directories are gone the server will start responding again. The drive is very slow to respond. I'm deleting about 20k folders at a time. Anymore than that and windows explorer becomes unresponsive. In the event that I finish cleaning up the HD and things don't return to normal what other things can I check?

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  • Automatize uploading the YouTube

    - by John
    Here's the problem: I would like to keep lots of home made videos. Of course, they are subject to being lost, or somebody could steal the the computer, or water or fire could destroy them. Secondly, I have to plug in my hard drive every time I want to watch something, which I find slow and cumbersome. I was thinking that perhaps I could upload the videos to Youtube with the privacy set to invite only and then delete the video from the hard drive automatically. Could this be done?

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  • Where does truecrypt store the backup volume header?

    - by happygolucky
    When using WDE, where does (if anywhere) truecrypt store a backup volume header? As i know there is always a backup header for regular truecrypt volumes, however i am not sure if this applies when system encryption is used. Because if i damage the volume header in track 0, my password won't boot my system anymore. So there is no backup header on the drive? I read somewhere on a forum that truecrypt might have a backup header relative to some position from the END of the HDD, however this doesn't make sense as it could easily be wiped over by programs running in Windows. And how would truecrypt know where this backup is anyway?

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