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• How to Manage and Use LVM (Logical Volume Management) in Ubuntu

  - by Justin Garrison

  In our previous article we told you what LVM is and what you may want to use it for, and today we are going to walk you through some of the key management tools of LVM so you will be confident when setting up or expanding your installation. As stated before, LVM is a abstraction layer between your operating system and physical hard drives. What that means is your physical hard drives and partitions are no longer tied to the hard drives and partitions they reside on. Rather, the hard drives and partitions that your operating system sees can be any number of separate hard drives pooled together or in a software RAID Latest Features How-To Geek ETC Inspire Geek Love with These Hilarious Geek Valentines How to Integrate Dropbox with Pages, Keynote, and Numbers on iPad RGB? CMYK? Alpha? What Are Image Channels and What Do They Mean? How to Recover that Photo, Picture or File You Deleted Accidentally How To Colorize Black and White Vintage Photographs in Photoshop How To Get SSH Command-Line Access to Windows 7 Using Cygwin How to Kid Proof Your Computer’s Power and Reset Buttons Microsoft’s Windows Media Player Extension Adds H.264 Support Back to Google Chrome Android Notifier Pushes Android Notices to Your Desktop Dead Space 2 Theme for Chrome and Iron Carl Sagan and Halo Reach Mashup – We Humans are Capable of Greatness [Video] Battle the Necromorphs Once Again on Your Desktop with the Dead Space 2 Theme for Windows 7

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• erratic audio levels on windows vista

  - by old retired dude

  I'm somewhat hard of hearing. I've been listening to my windows Vista machine with a pair of headphones so I don't annoy the others. I have 2 issues: 1) the volume varies enormously depending on the source. Having a windows alert occur while I am listening to a DVD or Youtube is a painful experience. Is there a preferred way to set all the different audio controls so I have a more constant volume? I already have lowered the volumes of the windows alerts. 2)Is there a way to limit the volume of my headphones to protect what is left of my hearing? Is there a software solution or should I be going for a hardware limiter? thanks retired dude

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• 2D Image Creator for a video game

  - by user1276078

  I need to make a few images for an arcade video game I'm making in Java. As of right now, I have drawings that animate, but there are two problems. The drawings are horrible, and as a result, the game won't get enough attention. It's a pain to have to change each coordinate for the drawing, as the drawings are fairly complex. I'd like to use images. I feel they could solve my problem. They would look better than the drawings, and it would only have an x and a y coordinate, rather than the many coordinates I need for each drawing. So, in a sense, I have two questions. Would images actually help? Would they solve my 2 problems? I just want to clarify. How would I make these images. I don't think I can copy them off of the internet because I plan on publishing this game. So, is there any software where you can make your own images? (It has to be in an image type that Java can support. I'm working with java). It also, as stated by the header, needs to be a 2D image; not 3D

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• How do I analyze an Apache Bench result?

  - by Alan Hoffmeister

  I need some help with analyzing a log from Apache Bench: Benchmarking texteli.com (be patient) Completed 100 requests Completed 200 requests Completed 300 requests Completed 400 requests Completed 500 requests Completed 600 requests Completed 700 requests Completed 800 requests Completed 900 requests Completed 1000 requests Finished 1000 requests Server Software: Server Hostname: texteli.com Server Port: 80 Document Path: /4f84b59c557eb79321000dfa Document Length: 13400 bytes Concurrency Level: 200 Time taken for tests: 37.030 seconds Complete requests: 1000 Failed requests: 0 Write errors: 0 Total transferred: 13524000 bytes HTML transferred: 13400000 bytes Requests per second: 27.01 [#/sec] (mean) Time per request: 7406.024 [ms] (mean) Time per request: 37.030 [ms] (mean, across all concurrent requests) Transfer rate: 356.66 [Kbytes/sec] received Connection Times (ms) min mean[+/-sd] median max Connect: 27 37 19.5 34 319 Processing: 80 6273 1673.7 6907 8987 Waiting: 47 3436 2085.2 3345 8856 Total: 115 6310 1675.8 6940 9022 Percentage of the requests served within a certain time (ms) 50% 6940 66% 6968 75% 6988 80% 7007 90% 7025 95% 7078 98% 8410 99% 8876 100% 9022 (longest request) What this results can tell me? Isn't 27 rps too slow?

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• Copy files with filter (XP)

  - by fire

  I have a huge folder (over 6GB) with multiple sub-folders that I want to copy onto an external hard drive, however I do not want it to copy any PDF, EXE or ZIP files across to save space. Is there any software that will help me achieve this? I have looked at TeraCopy but this doesn't seem to have any filter mechanism on it. I am using Windows XP (* sigh *). *edit: found the xcopy command, will this do it? Can anyone help me with the syntax?

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• Internet Explorer 9 won't start

  - by cros

  I have installed Internet Explorer 9. Now when I try to start it the application window flashes up briefly before closing again. What's wrong? I have tried to uninstall IE9, then the problem persisted with IE8. I reinstalled IE9 and the problem is still there. I have tried to use inetcpl.cpl to reset all settings and turn on software rendering, but it didn't help. I can't find any error messages in the Event logs, and the crash doesn't give any kind of error message. My system is Windows 7 Enterprise with SP1.

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• Capture documents in bitonal, or grayscale then downsample

  - by Jason R. Coombs

  I'm about to embark on a document archival process. I'm going to spend a lot of good money to archive some paper (actually microfiche) to TIFF images. I have a choice of 300-dpi bitonal (2-bit, black/white) or 300-dpi grayscale (8-bit). Cost is the same for either format. Data volume (and thus image size) is not a factor. It seems to me that the grayscale, since scanned at the same resolution as the bitonal, would always contain more information and could always be downsampled to the equivalent bitonal image. Are there any downsides to selecting grayscale, and then later downsampling to bitonal if desired? In other words, is it possible that the scanning software will perform a more accurate (or more legible) representation than a grayscale image converted to bitonal?

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• LAN cable not connected, but it is

  - by Koen

  I have a Windows XP SP2 desktop PC. It connects to the internet with a LAN cable (there's a wireless router for my laptop in between). The problem should be software because: when i tried connecting the same LAN cable to my laptop it works when i plugin the LAN cable (onboard) the green light is on and the orange light flickers when i tried the other cable (that feeds the wireless router) i have the same problem it worked a few days ago, nothing specific changed I tried removing the ethernet card from the device manager, and windows automatically reinstalled it. What could cause this? What can I try?

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• Unable to access a registry key

  - by gix

  I wondered why some file associations were broken and stumnled upon a nasty problem: I cannot access the key HKEY_CURRENT_USER\Software\Classes. As you can see above, I cannot view its current permissions, nor its owner (which should by SYSTEM). And no matter what I tried I'm unable to fix it. Trying to change the owner gives me a permission denied (also when trying from the Administrator account). RegDacl, which seemed to help another user, also aborts with a permission denied error. Any suggestions how to repair this? If I cannot repair this I guess I have to dump that user account and create a new one. Are there any "diff-like" tools out there to help copy over registry keys?

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• Using unsigned drivers in Windows 8

  - by T. Fabre

  I just migrated from Windows 7 x64 to 8, but I can't get my VPN software to run anymore : the SafeNet IKE service (installed by SafeNet SoftRemoteLT GA, used by my VPN provider) cannot start anymore. I found that by default unsigned drivers are disabled on Win8, and that is what is blocking the driver. The System event log tells me that the driver (apparently, C:\WINDOWS\SysWow64\Drivers\IPSECDRV.sys ) was blocked when I try to manually start the service (SafeNet IKE Service). I get the same messages for another driver, crypto.sys found in the same folder. I tried using bcdedit to enable unsigned drivers : bcdedit /set loadoptions DDISABLE_INTEGRITY_CHECKS bcdedit /set testsigning ON After reboot, same error. I tried by booting into Win 8's test mode, same issue. Applying the code signing policy (Enabled, Ignore) does not help either. Running gpresult does show that the policy is applied. Any help welcome.

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• Shrinking physical volumes in LVM on a Linux Guest in ESXi 5.0

  - by Stew

  The problem: Linux guest (OpenSuse 12.1), with multiple virtual disks attached. 3 disks are in a logical volume, two of which are exactly 2TB. None of the disks are independent, and due to the backup software we use, cannot be independent. When the two 2TB virtual disks are "dependent", the snapshot fails stating that the file is too large for the datastore. When I put those two disks in independent mode, snapshots work fine (the other disk is 1.8TB). I have therefore concluded that even shrinking the two physical disks by 100GB should solve the problem, however I am having trouble conceptualizing how to go about getting those disks smaller without breaking the LVM entirely. The actual LV has 1.3TB free, so there is plenty of space to shrink with. What I need to accomplish: Deallocate 100GB from the two, 2TB virtual disks within the linux guest. Shrink the two virtual disks by 100GB within vsphere (not as complicated). Are there any vsphere/LVM gurus that can give me a clue?

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• Slackware 12 - installed cairo but cannot be seen

  - by piro

  Hi. I wanted to install gtk+ 2.16.5, so i also installed glib, pango and cairo. All seemed to work well, except for cairo. At first I got an error while configuring: Requested 'cairo = 1.6' but version of cairo is 1.4.12 I installed the newest version of cairo without any problems, i rebooted the comp and when i started the configure again the same thing happened and it showed me the same error. I also can see this: Consider adjusting the PKG_CONFIG_PATH environment variable if you installed software in a non-standard prefix. Alternatively, you may set the environment variables BASE_DEPENDENCIES_CFLAGS and BASE_DEPENDENCIES_LIBS to avoid the need to call pkg-config. See the pkg-config man page for more details. Can someone help me ? Thanks.

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• I would like to have a publicly accessable linux box hosted elsewhere. Who provides this service?

  - by Eric Wilson

  I would like to have a general purpose linux server available and publicly accessible. I understand that there are no lack of web-hosting companies, but I might want more control over the machine than is typical. I would want the ability to install software, such as an SVN server, and I would like to be able to expose various port numbers, as I may have a variety of extremely low traffic sites that I would want to have available. Obviously, one option is to host such a machine in my home. Is that my only option? Or is what I describe out there, possible as a virtual machine on a larger server?

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• Installing VirtIO drivers in Windows Server 2008

  - by Stefan K.

  We are running a Windows Server 2008 system as a "guest" on a Linux-KVM virtual server (SLES11, with VirtIO support). We have trouble with the system performance and this is possibly due to not using the VirtIO drivers. I don't have much experience with neither KVM not VirtIO. Just heard it this could be the reason for our problem. Questions: The install examples I just found are describing how to install the drivers during Windows setup. Is it possible to install the VirtIO drivers later? We have running software on that system and would like to avoid reinstalling/setup of all these. I already found a page describing how to sign the drivers, which seems to be needed. A good tutorial page (step by step instructions) would be nice. Is there anything like that out there?

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• What tools should I use to edit H.264 MP4 GoPro videos?

  - by WW.

  I have recorded videos using a GoPro, which produces MP4 files containing H.264 encoded videos. I would like to do some simple editing tasks on these videos without losing quality:- Cut various scenes together Change soundtrack I'm using Windows XP Pro so I have Windows Movie Maker which seems like it should be sufficient but can not read the MP4 files that I have. Can I install a codec to allow WMM to read the MP4 files? Can I convert from MP4 to something that WMM reads? Is there a different video editing program that I should use? Free software would be preferable, but I'm willing to pay if it's a superior solution.

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• How can I change the subject of messages on an Exchange server automatically?

  - by Chris R

  I want to do something more than just normal mail - folder rules; I want to put a layer in front of my exchange server that lets me, for example, rewrite subjects into a more readable form. I get automated messages whose subject format makes them almost useless. Changing the emitting software is not going to happen, so I need to do something client side. I'm interested in anything that would allow me to do this, either on a mac, or on an older linux distro. Preferably the latter, and preferably in a way that I can turn on and forget about.

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• Failure Driven Development

  - by DevSolo

  At our shop, we strive to be agile. And I'd say we are making great strides. That said, a few of us have spotted a pattern we have started calling "Failure Driven Development". Failure Driven Development can basically be desribed as an agile release/iteration cycle where the bugs/features are guided not by tasks and stories with acceptance criteria, but with defects entered in the defect tracking software. Our team has a great Project Manager who strives to get the acceptance criteria from the customer(s), but it's not always possible. From my development chair, this is due to the customer either not knowing exactly what they want or (and this is the kicker) two different "camps" at the customer's main office conflict with how a story should be implemented. Camp A will losely dictate that Feature X works like this, then Camp B will fail it due not functioning like that. Hence, the term "FDD". The process is driven by "failures". This leads to my question: Has anyone else encountered this and if so, any tips/suggestions for dealing with it? We have, of course, tried to get Camp A and B to agree prior, but everyone knows this isn't always the case. Thanks

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• High-res icon in Windows Vista alt-tab thumbnail preview?

  - by netvope

  I have customized my alt-tab screen with the following: [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\AltTab] "OverlayIconPx"=dword:00000040 "MaxThumbSizePx"=dword:00000100 "MinThumbSizePcent"=dword:00000064 It works great: the thumbnail becomes 256 pixel wide and the icon at the corner of the thumbnail becomes 64x64 pixels. However, Windows doesn't load the high-res icons from the programs; instead, it uses the 16x16 pixel icon and scaled it up by nearest-neighbor. I'm sure the programs has high-res icons because I saw them with in "Extra Large Icon" view in Explorer. So the question is: How can I force Windows to load the high-res icons for the alt-tab thumbnail preview? (Perhaps a registry key, or a .dll hack/injection?)

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• Enable live streaming on website

  - by Somebody

  I have a server colocated in a datacentre (dedicated 1Gbit line, SSDs, etc.) running CentOS 5.4 64-bit. I want to stream live video from a device (webcam, camcorder, whatever.) to my server which inturn can re-broadcast it on demand through a flash player (such as Flowplayer) so that more users will be able to watch the stream since the server is quite fast. Does a solution like this exist already (streaming software from live source to flash media server) or will I need to hire someone to code it? I see that VLC has an option to stream video.. will that be suitable in this case? Or is there a better way to do it? I don't want a browser based solution on my end. It'll be great if this can be done without running an X server but I don't mind either way. This will be running on a dedicated PC at home.

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• How to use SSL on AWS EC2

  - by Aubada Taljo

  Hello I have an AWS EC2 account and I am running an instance that serves as a web host for my PHP website... This is a private website that has no UI but only URLs to be requested by my other software to get some response from the server... I want the requests (that I send to the server) to be secured so I want to use https instead of http... so what should I do to achieve that? PS: I found this link while searching... but I don't know how useful it's in my situation http://matt-darby.com/posts/690-aws-ec2-and-ssl Thanks in advance Good luck

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• Communicate from PC in internet to remote GSM device

  - by Jakub Jezik

  I have several remote devices that use GSM modem and gather data. I need to communicate with those devices from a PC station located in a office using the dial up connection. Is there a way to do this WITHOUT an additional GSM modem connected to that PC? Is there some way to accomplish PC to remote GSM device communication using e.g. VoIP or similar technology? I want to avoid installing an additional GSM modem in the office and use some software solution instead.

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• Let task explorer always run with realtime priority

  - by Simon Verbeke

  I have replaced task manager by process explorer from sysinternals. I would like this to always run at realtime, so that I can easily get it open when my system is really slow. I have noticed that it can take a while to start this program at those moments. I have gone over the different options mentioned on SU. I can't change the shortcut, it immediately opens the .exe. I also can't use the task manager plugins/extensions, as I'm not using task manager. Any idea what I could do? Preferably without installing any other software. That is, if the priority would have any effect on starting the program.

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• Internet printing : print to iOS gateway -> AirPrint / something -> Laser printers

  - by user75129

  I've done a bit of research on the Internet, and it looks like I'm on a dead end. My goal is to minimize cost, and be able to send and print documents AUTOMATICALLY (may be 10 or 20 pages per day) to a laser printer in a remote office. The preliminary method is to use: iOS 5.1.1 (JB'ed) with 3G connection, HP (or other brands) printer with AirPrint, iCloud's Documents and may be write some launchd scripts to monitor any new documents in iCloud. May be with other software. I am not sure yet. By using the cloud, I can upload new docs to the cloud anywhere in my city, and the iOS will be able to see them within a reasonable amount of time, then print it. But it seems this combo is not workable. Anyone got any advice on how to make this set up work, or propose other alternatives that requires NO PC or Mac? Currently I have a 3GS with 3G connectivity spare. Need to buy a new printer though.

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• What should I recommend a small company looking for C# developers

  - by Coder

  Here is the issue. I am a senior developer, and one of the start-ups I designed the system (management system/database/web) a long time ago, have grown and need software updates. I have left their system to another developer long time ago, but apparently he has left the job, and so they are asking me if I can suggest them where to find a new one. The problem is that the company has no clue that the IT is not cheap. They expect multiple features to be added for 40$, so that's an issue. Actually one of the reasons why I left the project when I did. Lots of expectations, little pay, also I know those people outside work, so I decided to avoided stressing the nonwork-relationships and left the project gracefully. Today they asked me for an advice, and I told them that the feature list they want is probably going to cost some if they'll get a senior developer for the job. So I guess their best bet is to find someone who loves coding and has just finished the school. Which would give someone a chance to code for money which is good for a student, and at the same time, allow the student to get some hands on experience. Then again, the system is not exactly 20 line console program, there is an MSSQL database, ASP.NET web page and content management system with all the AJAX stuff and some other things. So student straight out of school could have some problems with that. But, I thought about the issue some more, and I think that junior developer is a tricky deal, without mentoring, he can either screw up royally, or just do what's asked. Also, it seems no one is coming to interviews at all, which is weird, or maybe not. What should I suggest them?

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• How to avoid to be employed by companies which are candidates to DailyWTF stories?

  - by MainMa

  I'm reading The Daily WTF archives and especially those stories about IT-related companies which have a completely wrong approach of software development, the job of a developer, etc. Some stories are totally horrible: a company don't have a local network for security reasons, another one has a source control server which can only be accessed by the manager, etc. Add to it all those stories about managers who don't know anything about their work and make stupid decisions without listening to anybody. The thing is that I don't see how to know if you will be employed by such company during an interview. Of course, sometimes, an interviewer tells weird things which gives you an idea that something goes very wrong with the company (in my case, the last manager said I should work 100% of my time through Remote Desktop, connected to on an old and slooooow machine, because "it avoids several people to modify the same source code"; maybe I should explain him what SVN is). But in most cases, you will be unable to get enough information during the interview to get the exact image of a company. So how to avoid being employed by this sort of companies? I thought about asking to see some documents like documentation guide or code style guidelines. The problem is that I live in France, and here, most of the companies don't have those documents at all, and in the rare cases where those documents exist, they are outdated, poorly written, never used, or do force you to make things that don't make any sense. I also thought about asking to see how programmers actually work. But seeing that they have dual screens or "late-modern-artsy-fartsy furnishings" doesn't mean that they don't have people making weird decisions, making it impossible to work there. Have you been in such situations? What have you tried? Have it worked?

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