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• What's a good way for organizing PDF documents on windows?

  - by Ivan

  I'm looking for a good way to manage a lot of pdf documents (e.g. papers, ebooks) on windows. Ideally I'm looking for a windows version of the great mac app Yep. I've looked quite a bit and haven't found any windows app that provides and organized overview of your pdf documents. I've considered just tagging the pdf files, but there don't seem to be any apps to simply tag and search tagged files easily. I've found TaggedFrog, but the tags are kept in the app's internal DB and are associated with the filename. So if you move/rename a file it looses all its tags. In a nutshell: Is there a good windows app to organize/efficiently tag files?

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• PRNG test suite: bitstream and stream length

  - by Martin Trigaux

  On the NIST website, there is a tool called sts (Statistical Test Suite) that allow us to rest the validity of a pseudo-random number generator based on a stream of bits in input. When running the program, there is two variables I am not sure to understand : the stream length and number of bitstream. Is the stream length the size of the file ? The number of bit inside ? The size of a bitstream ? Are the bitstreams subset of the whole file ? Chosen how ? Let say I have a text file containing 1,000,000 bits in ascii. What should be my arguments ? You can find the user manual here if needed (I didn't find explanation about what are these variables in it). Thank you

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• Tuning OpenVZ Containers to work better with Java?

  - by Daniel

  I have a 8 GB RAM Server (Dedicated) and currently have KVM Virtual Machines running on there (successfully) however i'm considering moving to OpenVZ as KVM seems a bit overkill with a lot of overhead for what i use it for. In the past i have used OpenVZ Containers, hosted by myself and from other providers and Java doesn't seem to work well with them.. One example is that if i give a container 2 GB RAM ( No burst) (with or without vswap doesn't matter) a java instance can only be tuned to use at very most 1500 MB of that RAM (-Xmx, -Xms). Ideally, i wish to be able to create "Mini" containers with about 256MB, 512MB, 768 RAM and run some java instances in them. My question is: I'm trying to find an ideal way to tune a OpenVZ container configuration to work better with Java memory. Please, don't suggest anything related to Java settings, i'm looking for OpenVZ specific answers.. Though i welcome any suggestion if you feel it may help me. Much Appreciated, Daniel

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• Configure IIS 7 Reverse Proxy to connect to TeamCity Tomcat

  - by Cynicszm

  We have an IIS 7 webserver configured and would like to create a reverse proxy for a TeamCity installation using Tomcat on the same machine. The IIS server site is https://somesite and I would like the TeamCity to appear as https://somesite/teamcity redirecting to http://localhost:portnumber. I have installed the IIS URL Rewrite extension and the Application Request Routing to try and setup a reverse proxy but can't get it working. The closest answer I found is an old StackOverflow question: http://stackoverflow.com/questions/331755/how-do-i-setup-teamcity-for-public-access-over-https which unfortunately doesn't have any working example. I've searched a quite a bit but can't seem to find a relevant example. Any help is appreciated!

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• Sharing folders with VirtualBox, Win7 Host and Ubuntu 9.10 Guest

  - by unknown (google)

  I have a development setup from this tutorial: http://www.sitepoint.com/blogs/2009/10/27/build-your-own-dev-server-with-virtualbox/ But what I can't figure out is how to share a folder on my Ubuntu virtualized machine with the host Win7. I want to use a Windows text editor to edit code that's on my Ubuntu server. I've tried using the Shared Folders setting, adding "/var/www" but it says that the path is not absolute. When I click on "other", it only allows me to browse folders on my Win7 host. Both the host and guest are 64-bit OS. Thanks in advance!

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• Java : 2D Collision Detection

  - by neko

  I'm been working on 2D rectangle collision for weeks and still cannot get this problem fixed. The problem I'm having is how to adjust a player to obstacles when it collides. I'm referencing this link. The player sometime does not get adjusted to obstacles. Also, it sometimes stuck in obstacle guy after colliding. Here, the player and the obstacle are inheriting super class Sprite I can detect collision between the two rectangles and the point by ; public Point getSpriteCollision(Sprite sprite, double newX, double newY) { // set each rectangle Rectangle spriteRectA = new Rectangle( (int)getPosX(), (int)getPosY(), getWidth(), getHeight()); Rectangle spriteRectB = new Rectangle( (int)sprite.getPosX(), (int)sprite.getPosY(), sprite.getWidth(), sprite.getHeight()); // if a sprite is colliding with the other sprite if (spriteRectA.intersects(spriteRectB)){ System.out.println("Colliding"); return new Point((int)getPosX(), (int)getPosY()); } return null; } and to adjust sprites after a collision: // Update the sprite's conditions public void update() { // only the player is moving for simplicity // collision detection on x-axis (just x-axis collision detection at this moment) double newX = x + vx; // calculate the x-coordinate of sprite move Point sprite = getSpriteCollision(map.getSprite().get(1), newX, y);// collision coordinates (x,y) if (sprite == null) { // if the player is no colliding with obstacle guy x = newX; // move } else { // if collided if (vx > 0) { // if the player was moving from left to right x = (sprite.x - vx); // this works but a bit strange } else if (vx < 0) { x = (sprite.x + vx); // there's something wrong with this too } } vx=0; y+=vy; vy=0; } I think there is something wrong in update() but cannot fix it. Now I only have a collision with the player and an obstacle guy but in future, I'm planning to have more of them and making them all collide with each other. What would be a good way to do it? Thanks in advance.

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• Asus z53 laptop overheating problem

  - by Tiberiu Hajas

  hi all, wondering if anyone encountered overheating of asus laptop ? especially the z53 model ? usually the right side of the laptop and vent in the upper corner is blowing hot air when under even minimal load, the CPU temperature can easily get to 65-70C and GPU is even above 80C. I'm using NHC (notebook health control) to set to a higher conservatory power consumption but that helps only a bit, anyone opened up the case ? wondering is require a dust clean ...etc ? I still have some warranty on it. thanks

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• How to improve Minecraft-esque voxel world performance?

  - by SomeXnaChump

  After playing Minecraft I marveled a bit at its large worlds but at the same time I found them extremely slow to navigate, even with a quad core and meaty graphics card. Now I assume Minecraft is fairly slow because: A) It's written in Java, and as most of the spatial partitioning and memory management activities happen in there, it would naturally be slower than a native C++ version. B) It doesn't partition its world very well. I could be wrong on both assumptions; however it got me thinking about the best way to manage large voxel worlds. As it is a true 3D world, where a block can exist in any part of the world, it is basically a big 3D array [x][y][z], where each block in the world has a type (i.e BlockType.Empty = 0, BlockType.Dirt = 1 etc.) Now, I am assuming to make this sort of world perform well you would need to: A) Use a tree of some variety (oct/kd/bsp) to split all the cubes out; it seems like an oct/kd would be the better option as you can just partition on a per cube level not a per triangle level. B) Use some algorithm to work out which blocks can currently be seen, as blocks closer to the user could obfuscate the blocks behind, making it pointless to render them. C) Keep the block object themselves lightweight, so it is quick to add and remove them from the trees. I guess there is no right answer to this, but I would be interested to see peoples' opinions on the subject. How would you improve performance in a large voxel-based world?

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• Cannot access SWITCH thru VPN

  - by MadBoy

  I've VPN connection set up that i connect to company with. I can connect to all devices (other switches, routers, servers from same subnet with same settings just diffrent ip) but I can't connect to NetGear Router GS748Tv3. Settings on switch: IP address 192.168.1.8 Subnet mask 255.255.255.0 Default gateway 192.168.1.1 Management VLAN ID: 0 (1 - 4094 or 0) (0 means all VLANs) Switch has 2 VLAN's configured 1 and 2. I can access this switch thru VPN if i log in to server and from server to switch but this is a little bit slower then normal way. Anything I'm missing?

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• Will Software RAID And iSCSI Work For A SAN

  - by Justin

  I am looking for a SAN solution, but can't afford even entry level solutions. Basically, the SAN is for development and a proof of concept product. The performance doesn't have to be amazing, but needs to be functional. My buddy says we should just setup sotware RAID and software iSCSI in Linux. Essentially I have a spare server with dual Xeon processors, 4GB of memory, and (2) 500GB 7200RPM drives. It's a bit old but working. I am sure there is reason people don't do software RAID and iSCSI, but will performance be usable? Thinking of configuring the drives in RAID 0 (for performance).

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• What causes Windows Boot to stall?

  - by Nick Berardi

  For about 6 months now I have been having this weird problem where Windows 7 fails to fully boot correctly. What happens is this. Starting Windows shows up on the screen. Then 3 out of 4 times nothing else happens, no Windows Flag animation, just nothing occurs. After 3 or 4 restarts repeating steps 1-2 above, the Windows Flag animation finally shows up and everything works as expected. My question is what is causing this problem in steps 1 and 2? Because I have tried the following with no luck: Error checking and correcting of any disk errors Updating drivers Doing a clean install of Windows 7 My setup is as follows: Windows 7 64-bit Ultimate 8 GB RAM 128 GB Crucial SSD (firmware 0005) Dell Latitude E6410 Intel Wireless and Graphics Other than what I have tried above I am totally out of ideas and looking for some new ones to try.

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• How do I turn a shared computer back into a shared media drive?

  - by Brian Green

  There is an external hard drive that is set up as a shared media device for a TV. I tried to hook up my the library on my desktop as a shared media drive to watch movies from my computer on the TV. It worked for a little bit but about 5 seconds after getting into my computer the tv went blank and I couldn't access the external hard drive any more. When I checked on my computer the Hard drive was no longer a shared media device but now it was a computer on the network. How do I fix this and turn it back into a shared media device so I can access it on the TV?

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• Dovecot/Postfix-mysql e-mail Aliases are not correctly forwarded

  - by jo_fryli

  I recently set up Dovecot/postfix-mysql on my Debian Squeeze Server and I have a bit of a problem. When ever I send a email to an alias ([email protected] forwarded to [email protected] for example) Postfix (or Dovecot, I'm not quite sure) puts this email into a Mailbox rather than forwarding it to the real Mail-Adress. I have tested all the MySQL queries and they all behave the way I intend them to do. foobar dovecot: deliver([email protected]): msgid=<000001385b464c9a-e40af11e-3bf4-49f6-903d-1d2369f6bfb6-000000@barfoo: saved mail to INBOX master.cf main.cf Keep in mind that normal E-Mail sending and receiving works just fine! I have set up my MySQL Tables with Postfixadmin. Thanks for your help!

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• Is there a test to see if hardware virtualization (vmx / svm) are presently enabled within a Linux session?

  - by Dr. Edward Morbius

  I'm writing procedures for configuring VirtualBox support for 64-bit SMP guests, which requires hardware virtualization suppot (VTx/Intel, AMD-V/AMD). I have successfully configured this myself, however I'd like the procedure to be clear. sed -ne '/^flags/s/^.*: //p' /proc/cpuinfo | egrep -q '(vmx|svm)' && echo Has hardware virt || echo No HW virt ... shows if the CPU is capable. I've still got to go enable the feature in BIOS. Any way to test from within Linux to see that this is no or not? Thanks. (Edit: s/xvm/svm/ in title)

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• Why does Ubuntu 13.10 not detect my Win7 partition?

  - by goutham

  I'm trying to install Ubuntu 13.10 alongside Windows 7 on my DELL INSPIRON 14z 5423 laptop and I'm new to all of this. I'm using the Ubuntu 13.10 64-bit ISO burned onto a CD. The first time I tried to install it, Ubuntu said it did not detect any other OS, which meant I only had 4 options: Erase disk and install Ubuntu (I don't want to do this) Encrypt new Ubuntu. Use LVM. Something else. If I choose the Something else option, it brings me to the partition menu and says that I have 1 disk with free space of (500Gb), but that's not true because I have Windows 7. I restarted the laptop several times and booted the CD again and I got exactly the same as I did previously. How do fix this problem and install Ubuntu alongside Windows 7? After executing "sudo fdisk -l" command in terminal ubuntu@ubuntu:~$ sudo fdisk -l WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted. Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0xd2b811c5 Device Boot Start End Blocks Id System /dev/sda1 * 2048 206847 102400 7 HPFS/NTFS/exFAT /dev/sda2 206848 314574847 157184000 7 HPFS/NTFS/exFAT /dev/sda3 314574848 629147647 157286400 7 HPFS/NTFS/exFAT /dev/sda4 629147648 976771071 173811712 7 HPFS/NTFS/exFAT After removing one partition I executed command once again ubuntu@ubuntu:~$ sudo fdisk -l WARNING: GPT (GUID Partition Table) detected on '/dev/sda'! The util fdisk doesn't support GPT. Use GNU Parted. Disk /dev/sda: 500.1 GB, 500107862016 bytes 255 heads, 63 sectors/track, 60801 cylinders, total 976773168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 4096 bytes I/O size (minimum/optimal): 4096 bytes / 4096 bytes Disk identifier: 0xd2b811c5 Device Boot Start End Blocks Id System /dev/sda1 * 2048 206847 102400 7 HPFS/NTFS/exFAT /dev/sda2 206848 629145599 314469376 7 HPFS/NTFS/exFAT /dev/sda3 629147648 976771071 173811712 7 HPFS/NTFS/exFAT

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• What is the the maximum time for a user to return to Google for the visit to be flagged up as a bounce in GA?

  - by Anonymous

  I know that Google measures bounce rates by how fast a user returns to the results page after clicking-through to a website. Roughly what is the maximum duration of the visit for the user to then return for it to be considered a bounce? i.e. <5 seconds, <30 seconds? I'm mainly interested as it appears a lot of users clicking through my PPC adverts (Adwords) are bouncing, despite my ads having a high quality score and the page's being entirely related to the adverts copy and at as best tied to what I think user's may be searching for from the key phrases I've selected so the high bounce rate (100% on some keywords) seems a bit strange. If a bounce isn't determined by time, but simply whether a user returns to the SERP after visiting my site or not after any amount of time that would make more sense but the average duration of visit for my keywords with a 100% bounce rate in GA is 00:00:00, which suggests a user immediately returned to the SERPs, which again, is odd. Is my GA data being skewed by https or anything like that? Scratching my head here.

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• How to use launchd to ensure an application is running?

  - by zneak

  Hello guys, I use Quicksilver, which is a nifty program that really speeds up my work. I've set it to launch when I log in. However, since Snow Leopard, it's become a bit less stable, and once in a while, it crashes. And obviously, it won't restart by itself. I'm pretty sure I can use launchd to ensure it's always running when I'm logged in. Is there a good guide/example of how to make sure a process restarts when it's killed/terminated/crashed with it?

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• USB Ports In Wrong Mode, How To Use usbmodeswitch?

  - by user86872

  I haven't had access to my USB ports as media devices for a couple days now. I've been reading and researching everything I can find but I can't find a good guide for usbmodeswtich or usbms that I can decipher. The USB's are fine for power, but won't support my android phone as a media device, which is killing me because I use adb everyday, and won't support my plug and play mouse any longer. Not sure what caused the switch, though I think it may be related to the suspend issue I've read about, but the solutions in those threads I read also didn't work. Below is my system information and details. System: Ubuntu 12.04, 64-bit, Dedicated Machine Machine: HP-Pavillion g6 notebook, AMD A6 Quad Core Processor USBs used for: Cooling dock, Android Debug Bridge, Wireless Mouse Attempted Mod Probe, udev restart, unable to attempt lsusb due to my own lack of knowledge. :) Last Attempt Readout: ncandiano@ncandiano-HP-Pavilion-g6-Notebook-PC:~$ sudo modprobe -r usbhid && sleep 5 && sudo modprobe usbhid ncandiano@ncandiano-HP-Pavilion-g6-Notebook-PC:~$ sudo modprobe -r usb-storage ncandiano@ncandiano-HP-Pavilion-g6-Notebook-PC:~$ sudo modprobe usb-storage ncandiano@ncandiano-HP-Pavilion-g6-Notebook-PC:~$ sudo restart udev udev start/running, process 2624 ncandiano@ncandiano-HP-Pavilion-g6-Notebook-PC:~$ lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 002: ID 0461:4de7 Primax Electronics, Ltd webcam Any help would be greatly appreciated!

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• How likely can my data be recovered after Windows CHKDSK performed on a degraded RAID 5 array?

  - by chrisling106

  Hello there, We have a RAID 5 setup with 3 SATA disks, #2 went down as reported on the pre-POST screen. Unfortunately, for some reason out of my control, the system was rebooted with a degraded RAID :-O Windows XP (64-bit) loaded, CHKDSK ran automatically and done its recovery! From that point onwards, the following error prompts every time even in Safe Mode: lsass.exe - The endpoint format is invalid I took those 3 disks to the data recovery expert and need to wait at least 2-4 days for results. There are 2 VMs on multiple files stored in this RAID 5 array, and there's no backup! Sorry, I just inherited the system from an ex-staff who has left the company 2 months before I joined. How likely the data can be recovered?

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• Optimum number of threads while multitasking

  - by Gun Deniz

  I know similar questions have been asked but I think my case is a little bit diffrent. Let's say I have a computer with 8 cores and infinite memory with a Linux OS. I have a calculation software called Gaussian that can take advantage of multithreading. So I set its thread count to 8 for a single calculation for maximum speed. However I really can't decide what to do when I need to do run for instance 8 calculations simultaneously. In that case should I set the thread count to 1(total 8 threads spawned in 8 processes) or keep it 8(total 64 threads spawned in 8 processes) for each job? Does it really matter much? A related question is does the OS automatically does the core-parking to diffrent cores for each thread?

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• KDE: How can I select audio output device for mplayer?

  - by grimripper

  I recently installed Kubuntu 13.10 64-bit, and I'm having a problem with selecting audio output device. In Phonon, when I select audio device preference order and press Apply, Amarok and Dragon will immediately switch to the preferred device. VLC and SMplayer are not affected. VLC has its own setting for selecting the output device, but SMplayer remains a problem. It always plays audio on internal audio, and I can't change output to HDMI. How can I select HDMI for SMplayer's audio output device? I don't know if it matters, but when I select HDMI audio in Phonon and click Test, the test sound plays on the internal audio output as well. In the hardware settings tab, the front left and front right test buttons play audio on HDMI. Also, volume up/down buttons affect HDMI volume when SMplayer is focused. This would make sense if I could get SMplayer to play audio over HDMI, but it would be better if the volume keys affected SMplayer's own volume, or the "mplayer2: audio stream" which appears in volume control while mplayer is playing. EDIT: I've recompiled mplayer with alsa support, and can now select the audio output device from SMplayer's settings. Didn't affect the issue with Phonon of course, but it's a suitable workaround.

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• How long to erase flash memory (RAID controller)?

  - by Rob Nicholson

  I made a bit of a boo boo last night in upgrading the BIOS in a Silicon Image Sil3132 eSATA adapter. It's a RAID controller in a server. I accidently flashed it with the wrong BIOS ;-) Not the end of the world as this card only cost £15 but I'm trying to flash it with the correct BIOS as it won't obviously work anymore. Silicon Image supply a DOS program for flashing and I thought I'd use the Erase function to get rid of the old BIOS. Any idea how long this should take? It's been sat at the "Erasing memory" prompt for about 15 minutes. Thanks, Rob.

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• What kind of SATA interface is on a Thinkpad X120E?

  - by Jorge Castro

  I recently ordered a Thinkpad X120E with an AMD Fusion (Zacate) chipset. I am eyeballing an SSD for it, however newer SSDs are coming out with 6Gbps SATA interfaces. I doubt such a cheap laptop has 6Gbps SATA, but I'm debating waiting the a bit longer until the Intel 510 series come out, if anything to future proof myself by putting it in this laptop and then later on when I do upgrade to a laptop with 6Gbps SATA I'll be good to go. The hardware manual mentions that the motherboard is for a "AMD Fusion E-350" but the specifications of each hardware part isn't part of the manual. Does anyone have any information on the kind of SATA controllers in Fusion laptops so I can make a better purchasing decision?

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• On Mac OS X how can I monitor what is using my internet connection?

  - by Jon Hopkins

  I've got a relatively limited broadband connection (I live miles from the nearest exchange) and from time to time net access (but nothing else) slows to a near crawl. I know from a bit of monitoring software that the connection is being fairly heavily used which would explain it but I don't know what's using it. There are certainly plenty of things which might (these days there are dozens of apps that will either regularly or infrequently check data or download updates) but how can I find out? I'm happy to pay (a small amount of) money if needed, though in that case I'd rather it were a recommendation that me just Googling for something.

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• I just got a linode VPS a week ago and I've been flagged for SSH scanning...

  - by meder

  I got a 32-bit Debian VPS from http://linode.com and I really haven't done any sort of advanced configuration for securing it ( port 22; password enabled ). It seems somehow there is ssh scanning going on from my IP, I'm being flagged as this is against the TOS. I've been SSHing only from my home Comcast ISP which I run Linux on. Is this a common thing when getting a new vps? Are there any standard security configuration tips? I'm quite confused as to how my machine has been accused of this ssh scanning.

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