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• Turn a Green Laser into a Microscope Projector [Science]

  - by ETC

  No need to settle for squinting over a microscope, hack a green laser and a cheap webcam lens into a projector. Check out the video below to see the projector in action. Over at Hackteria, user Dusjagr shares a clever tutorial on how to hack a laser and some odd parts into a projector intended for microscopic subjects. With a strong enough light source, a properly spaced lens assembly, and a slide or petri dish filled with something of interest, you can create microscope projector. Curious how it would work and what the results would look like? Check out this demonstration video: That wiggling creature you see in the video is a nematode from a sample of pond water. For more information on building your own laser-scope projector, hit up the link below. DIY Laser Microscope [Hackteria via Make] Latest Features How-To Geek ETC Learn To Adjust Contrast Like a Pro in Photoshop, GIMP, and Paint.NET Have You Ever Wondered How Your Operating System Got Its Name? Should You Delete Windows 7 Service Pack Backup Files to Save Space? What Can Super Mario Teach Us About Graphics Technology? Windows 7 Service Pack 1 is Released: But Should You Install It? How To Make Hundreds of Complex Photo Edits in Seconds With Photoshop Actions Awesome 10 Meter Curved Touchscreen at the University of Groningen [Video] TV Antenna Helper Makes HDTV Antenna Calibration a Snap Turn a Green Laser into a Microscope Projector [Science] The Open Road Awaits [Wallpaper] N64oid Brings N64 Emulation to Android Devices Super-Charge GIMP’s Image Editing Capabilities with G’MIC [Cross-Platform]

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• How do I make an exe into a service on Windows?

  - by user3677994

  I recently made an application that has multiple parts. One of the parts is a networking tool - it always starts with the OS, and it never displays any sort of message. It does, however, start an incredibly irritating console, which is impossible to get rid of without closing the program itself (please just accept this one as given). I have decided to work around this problem by starting the program (it's a *.exe) as a service, thus stopping it from showing up at all. As the application will be distributed to various computers (hence the need for a networking tool in the first place). I need a way to make this program install as a service (so, I don't really want answers that tell me to go through a series of menus on the Control Panel or download a 3rd-party application that has to stay on whichever computer the service will run on). How can I do this?

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• Unable to download anything from the Ubuntu software center

  - by Skittles

  I am trying to download softwares from ubuntu software center but every time i click on "USE THIS SOURCE" i end up getting "Failed to download repository information" error! I don't understand what to do I even tried changing and adding Repository. Even tried choosing a different server. Even the "Choose best server" option doesn't choose anything. I really need help. I am new to Ubuntu and i would really appreciate some help. after trying lsb_release -a; i got pooja@Invincible:~$ lsb_release -a; No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 12.04 LTS Release: 12.04 Codename: precise After trying "sudo apt-get update && sudo apt-get upgrade" i got this- W: Failed to fetch http://mirror.cse.iitk.ac.in/ubuntu/dists/precise-proposed/universe/i18n/Translation-en Something wicked happened resolving 'mirror.cse.iitk.ac.in:http' (-5 - No address associated with hostname) E: Some index files failed to download. They have been ignored, or old ones used instead.

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• Replicate Oracle to MySQL

  - by Rosdi

  I am developing a web apps, this web application will be using MySQL. Now I need to replicate my client's Oracle database into MySQL, only a few tables will be involved.. a table can be up to 2-3 million rows. I only have SELECT privilege on this Oracle, so don't ask me to install any kind of service on the Oracle machine. I have complete control on the MySQL side however. The replication is only one way (Oracle to MySQL). I can write a simple script to truncate MySQL table and repopulate it every night but I think this is very inefficient, there must be a better way. Is there any free tools I can use? Expensive database replication system is definitely out of the question.

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• Jenkins swarm-plugin jar file, won't run in background

  - by JeanMertz

  We're working on an automation script for our Jenkins slaves on a local Unix server. To connect the slaves to the Jenkins master, we use the swarm plugin. Setting up the master was easy, and connecting clients is also easy with a single command. However, I am trying to get the slave command (a java application) to run in the background without stalling the current process, this doesn't seem to work. I've created an init.d file and added it to update-rc.d but that doesn't work. #!/bin/bash /usr/bin/java -jar /root/swarm-client-1.7-jar-with-dependencies.jar -executors 4 I've also tried to run it with an ampersand & to start the process in the background, but that doesn't work either because - from looking at the source - the jar file actually boots another process that is then started in the foreground. Any ideas on how to make this jar file start without stopping the bootstrap script?

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• Understanding mongod log entries

  - by Jo Erlang

  Can anyone explain the numbers in the % column, in this mongod log snippet ? It is building a new index but I'm not sure I understand why the numbers look like that Tue Nov 20 11:38:08 [initandlisten] connection accepted from 127.0.0.1:49299 #8 (2 connections now open) Tue Nov 20 11:38:08 [conn8] build index xx.yyyy { source: 1 } Tue Nov 20 11:38:19 [conn8] 2921300/243339 1200% Tue Nov 20 11:38:29 [conn8] 4109600/243339 1688% Tue Nov 20 11:38:39 [conn8] 4400100/243339 1808% Tue Nov 20 11:38:49 [conn8] 4676600/243339 1921% Tue Nov 20 11:38:59 [conn8] 4939700/243339 2029% Tue Nov 20 11:39:09 [conn8] 5217800/243339 2144% Tue Nov 20 11:39:19 [conn8] 5439300/243339 2235% Tue Nov 20 11:39:29 [conn8] 5659700/243339 2325% Thanks

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• GRUB Problem or Hardware Problem?

  - by Nikit Batale

  I have Windows XP Professional and Ubuntu Karmic Koala 9.10 on dual boot. I often get a GRUB loading failed error during boot-up. Or sometimes, when I try to boot into either Ubuntu or XP, I get a Could not read from source error. Now this is funny. After getting one of the above errors, if I simply unplug the SATA cable from Hard Drive end and plug it again, the problem gets solved. So what and whose problem is it? GRUB or My Hardware ? P.S.: I was suggested on StackOverflow that ServerFault is the right place for this question.

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• Integrating different branches from external sources into a single Mercurial repository

  - by dukeofgaming

  I'm currently working in a company using Perforce and am making way for distributed version control with Mercurial. I've had success importing Perforce history using the perfarce (quite a suitable name, I laugh every time I see/say it) however, this only works with a single branch at a time. Here's how my P4 integration setup works: In perforce, create a "client", which is kind of a description of what you will be constantly updating/checking-out. This can only address one branch at a time (trunk or other). Once you do this, run hg clone p4://<server>/<client_name> Go to .hg/hgrc and put the perforce path line: perforce = p4://<server>/<client_name> Work normally with the code under mercurial, do hg pull perforce to sync up, hg push to export a changelist What I'd like to be able to do is have a perforce path per branch and have everything work in the same repository. Now, pushing is not a problem, however, if I pull the history from another branch it would end up at the default branch. I'd like to be able to do something like hg pull perforce-R5 and have it land in mercurial's R5 branch. Even if I have no merging history, it would be sweet enough to be able to preserve it. There are also other plugins for CVCSs that let you integrate mercurial, but AFAIK the subversion one has the same problem. I don't think there is a straight-through way of doing this, but as long as I could automate the process with some hooks and scripts in a single Mercurial machine, that would be good enough.

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• What's the difference between General Ledger Transfer Program, Create Accounting and Submit Accounting?

  - by Oracle_EBS

  In Release 12, the General Ledger Transfer Program is no longer used. Use Create Accounting or Submit Accounting instead. Submit Accounting spawns the Revenue Recognition Process. The Create Accounting program does not. So if you create transactions with rules, then you would want to run Submit Accounting Process to spawn Revenue Recognition to create the distribution rows, which Create Accounting is then spawned to process to the GL. Create Accounting Submit Accounting Short Name for Concurrent Program XLAACCPB ARACCPB Specific to Receivables No Yes Runs Revenue Recognition automatically No Yes Can be run real-time for one Transaction/Receipt at a time Yes No Spawns the following Programs 1) XLAACCPB module: Create Accounting 2) XLAACCUP module: Accounting Program 3) GLLEZL module: Journal Import 1) ARTERRPM module: Revenue Recognition Master Program 2) ARTERRPW module: Revenue Recognition with parallel workers - could be numerous 3) ARREVSWP - Revenue Contingency Analyzer 4) XLAACCPB module: Create Accounting 5) XLAACCUP module: Accounting Program 5) GLLEZL module: Journal Import Keep in mind, Reports owned by application 'Subledger Accounting' cannot be seen when running the report from Receivables responsibility. You may want to request your sysadmin to attach the following SLA reports/programs to your AR responsibility as you will need these for your AR closing process: XLAPEXRPT : Subledger Period Close Exception Report - shows transactions in status final, incomplete and unprocessed. XLAGLTRN : Transfer Journal Entries to GL - transfers transactions in final status and manually created transactions to GL To add reports/programs owned by application 'Subledger Accounting' (Subledger Period Close Exception Report and Transfer Journal Entries to GL_ Add to the request group as follows: Let's use Subledger Accounting Report XLATBRPT: Open Account Balances Listing Report as an example. Responsibility: System Administrator Navigation: Security > Responsibility > Define Query the name of your Receivables Responsibility and note the Request Group (ie. Receivables All) Navigation: Security > Responsibility > Request Query the Request Group Go to Request Zone and Click on Add Record Enter the following: Type: Program Name: Open Account Balances Listing Save Responsibility: Receivables Manager Navigation: Control > Requests > Run In the list of values you should now see 'Open Account Balances Listing' report References: Note: 748999.1 How to add reports for application subledger accounting to receivables responsibiilty Note: 759534.1 R12 ARGLTP General Ledger Transfer Program Errors Out Note: 1121944.1 Understanding and Troubleshooting Revenue Recognition in Oracle Receivables

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• Git pull auto complete OSX

  - by vodkhang

  Follow some instruction on this site http://denis.tumblr.com/post/71390665/adding-bash-completion-for-git-on-mac-os-x-leopard . I can do git auto complete for MAC OS. However, when I type git pull origin ma (for master), and then tab it takes a long time for git to auto complete to become git pull origin master . I think it connect to the server to get the branch, but I am not sure, is there any way to make it faster and only get the branch on local machine cd /tmp git clone git://git.kernel.org/pub/scm/git/git.git cd git git checkout v`git --version | awk '{print $3}'` cp contrib/completion/git-completion.bash ~/.git-completion.bash cd ~ rm -rf /tmp/git echo -e "source ~/.git-completion.bash" >> .profile

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• Is there a way to import email from the raw email files?

  - by Chris Schmitz

  I have a client who recently switched hosts. When they switched hosts they didn't backup their email and updated their configuration settings so they lost everything. However, I was able to log in to their old hosting control panel and download their mail folder. I am wondering if there is a way to extract their emails and/or contacts from the files. I'm not sure what type of files they are, there is no extension, but the folder directory is structured like this: mail/ .Drafts/ .Sent/ .Trash/ cur/ new/ theirdomain.com/ tmp/ [email protected] maildir Inside of the theirdomain.com folder, there is a folder for each account and inside of that is a folder called "cur" which has a whole bunch of files with names like 1292945327.H169813P25958.uscentral21.myserverhosts.com,S=10117/2,S and if I preview those files I can see the actual email messages inside of them but I have no idea how to get that information from those files to an email client. Anyone know of a way to work with these files? Thanks in advance for any insight you can share!

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• NetBeans Sources as a Platform

  - by Geertjan

  By default, when you create a new NetBeans module, the 'development IDE' is the platform to which you'll be deploying your module. It's a good idea to create your own platform and check that into your own repo, so that everyone working on your project will be able to work with a standardized platform, rather than whatever happens to be beneath the development IDE your using. Something else you can do is use the NetBeans sources as your platform, once you've checked them out. That's something I did the other day when trying to see whether adding 'setActivatedNodes' to NbSheet was sufficient for getting UndoRedo enabled in the Properties Window. So that's a good use case, i.e., you'd like to change the NetBeans Platform somehow, or you're fixing a bug, in other words, in some way you need to change the NetBeans Platform sources and then would like to try out the result of your changes as a client of your changes. In that scenario, here's how to set up and use a NetBeans Platform from the NetBeans sources. Run 'ant build platform' on the root of the NetBeans sources. You'll end up with nbbuild/netbeans containing a subfolder 'platform' and a subfolder 'harness'. There's your NetBeans Platform. Go to Tools | NetBeans Platform and browse to nbbuild/netbeans', registering it as your NetBeans Platform. Create a new NetBeans module, using the new NetBeans Platform as the platform. Now the cool thing is you can open any of the NetBeans modules from the NetBeans Platform modules in the NetBeans sources. When you change the source code of one of these modules and then build that module, the changed JAR will automatically be added to the right place in the nbbuild/netbeans folder. And when you do a 'clean' on a NetBeans Platform module, the related JAR will be removed from nbbuild/netbeans. In other words, in this way, by changing the NetBeans sources, you're directly changing the platform that your custom module will be running on when you deploy it. That's pretty cool and gives you a more connected relationship to your platform, since you're able to change it in the same way as the custom modules you create.

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• ASP.NET 4.0- CompressionEnabled Property in session state 4.0

  - by Jalpesh P. Vadgama

  Hello Guys, This blog has been quite for few days. Because i was busy with some personal and professional work both and that’s why i am not able to work on writing blog posts which i have discovered in last few days. Here is one features of asp.net 4.0 that I am going to explain. As a web developer we all know about session. Without the use of session any database driven web application is incomplete. As we all know unlike windows form web forms are state less so when user interacts with web application we need to maintain state amongst web pages and we are using session for maintaining state between web pages for each users. ASP.NET is also provide same kind of session state functionalities. ASP.Net Session state identify request coming for same user and same browser for specific session time out interval and its preserves values in session for that specific time intervals and that’s help us in maintaining state amongst web pages for a specific user. ASP.NET Session state allows us to store session in three way 1. IncProc 2. Session State Service 3. SQL Server. In SQL Server mode it will store session in SQL Server tables instead of storing it in Server Memory. ASP.NET 4.0 provides a new property called Compression Enabled that means when we store values in serialized form in SQL Server with GZip Compression and that results in better performance. For that you need to store property in web.config like following. <sessionState allowCustomSqlDatabase="true" sqlConnectionString="data source=Server;Initial Catalog=aspnetsessionstatedb" compressionEnabled="true" /> That’s it now with the use of this property you can have better performance when you are storing large amount of data in session.But still you need to decide that why you want to stored large amount of data in session because its against best practices. Technorati Tags: Session,ASP.NET 4.0

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• links for 2010-06-09

  - by Bob Rhubart

  Enterprise Architecture: From Incite comes Insight...: Why aren't we seeing more adoption of open source in large enterprises? (tags: ping.fm entarch opensource linux) Forms Modernization, Part 1: Motivation for change iAdvise blog (tags: ping.fm oracleace apex middleware oracle) OmniGraffle for iPad Now Supports VGA Output (Enterprise Architecture at Oracle) (tags: ping.fm entarch ipad oracle) SysAdmin access in Oracle VDI - Jaap's VDI Blog Space (tags: ping.fm virtualization sunray vdi) Securing Enterprise Data in AWS Oracle PeopleSoft Enterprise Consulting, Support and Training (tags: ping.fm cloud peoplesoft entarch) Enterprise Software Development with Java: ODTUG Kaleidoscope 2010 - preparations and sessions (tags: ping.fm oracle java oracleace) @toddbiske: Enterprise Architecture Must Assist Delivery "In most IT organizations, things get delivered through projects, and enterprise architects don’t typically play the role of project architect. At best, there is an indirect association with delivery." -- Todd Biske (tags: entarch enterprisearchitecture) @pevansgreenwood: The Rules of Enterprise IT "The rules of this game need to change if enterprise IT — as we know it — is to remain relevant in the future." -- Peter Evans Greenwood (tags: entarch enterprisearchitecture) @bex: Oracle UCM 11g Now Released! "Good news!" says Oracle ACE Director Bex Huff. "The 11g version of Oracle UCM is finally available! This version is a bit of a re-write to run on top of the WebLogic application server. Oracle has been talking about this release for some time, so I'm glad to see it finally available." (tags: oracle enteprise2.0 e20 oracleace) Marc Kelderman: SOA 11g Cloning Cloning an Oracle SOA Suite 11g environment is rather simple. Marc Kelderman shows you how. (tags: soa oracle)

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• Why does void in C mean not void?

  - by Naftuli Tzvi Kay

  In strongly-typed languages like Java and C#, void (or Void) as a return type for a method seem to mean: This method doesn't return anything. Nothing. No return. You will not receive anything from this method. What's really strange is that in C, void as a return type or even as a method parameter type means: It could really be anything. You'd have to read the source code to find out. Good luck. If it's a pointer, you should really know what you're doing. Consider the following examples in C: void describe(void *thing) { Object *obj = thing; printf("%s.\n", obj->description); } void *move(void *location, Direction direction) { void *next = NULL; // logic! return next; } Obviously, the second method returns a pointer, which by definition could be anything. Since C is older than Java and C#, why did these languages adopt void as meaning "nothing" while C used it as "nothing or anything (when a pointer)"?

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• Friday Fun: Christmas Tree Light Up

  - by Asian Angel

  Another week has thankfully passed by, so it is time to take a break and have some fun. This week’s game tests your ability to light up the whole Christmas tree…can you figure out the correct wiring configuration? Christmas Tree Light Up The object of the game is simple…light up all of the bulbs on the Christmas tree. While the game may look quick and easy at first you will need to do some thinking and experimenting to come up with the correct wiring configuration. The instructions are very simple…just click on any of the wiring sections or bulbs to rotate them. Keep in mind that you may have to click a few times to line the wiring sections or bulbs up as desired since the rotation is always clockwise. Note: You will need use all of the wiring sections available to completely light the tree up. Each time you will be presented with a different starting setup coming from your power source. Time to hook up the lights! Note: It is recommended that you disable the sound for the game since the “rotation” sounds can be slightly irritating. A nice start but there are still a lot of bulbs to light up. Getting closer… Almost there…only two more bulbs to light up. Success! Have fun playing! Play Christmas Tree Light Up Latest Features How-To Geek ETC The 50 Best Registry Hacks that Make Windows Better The How-To Geek Holiday Gift Guide (Geeky Stuff We Like) LCD? LED? Plasma? The How-To Geek Guide to HDTV Technology The How-To Geek Guide to Learning Photoshop, Part 8: Filters Improve Digital Photography by Calibrating Your Monitor Our Favorite Tech: What We’re Thankful For at How-To Geek Settle into Orbit with the Voyage Theme for Chrome and Iron Awesome Safari Compass Icons Set Escape from the Exploding Planet Wallpaper Move Your Tumblr Blog to WordPress Pytask is an Easy to Use To-Do List Manager for Your Ubuntu System Snowy Christmas House Personas Theme for Firefox

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• What is "WinZip Registry Optimizer" and whatever happened to WinZip?

  - by Aerovistae

  So some file the other day told me I needed something like WinZip to unzip it. I was tired and didn't think about what I was doing as I cheerfully downloaded it, because I remember years and years ago I used to use it all the time. But then I found it barely worked at all in the first place, would only work for a few days before I had to start paying for it, and worst of all, forced a supplementary install of something called "WinZip Registry Optimizer." After installing 7-zip and getting rid of WinZip, I found this Registry Optimizer continually popping up and telling me my computer was loaded with viruses and errors and I just had to buy it. This obviously means the Optimizer is a virus unto itself, and I uninstalled it from the control panel. But still, it bothers me. I googled it and found the WinZip site proudly offering downloads of this program, this spamware. What happened? Why has a once-mainstream software developer been reduced to this?

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• Access Denied Error in PagesListCPVEventReceiver post SharePoint SP2 upgrade

  - by JD

  I am seeing the following errors from one of the SharePoint Web Front Ends after the SP2 upgrade. Has anyone else seen this error or a solution? Event Type: Error Event Source: Windows SharePoint Services 3 Event Category: General Event ID: 6875 Date: 2009-10-27 Time: 13:09:57 User: N/A Computer: XXXXXXX Description: Error loading and running event receiver Microsoft.SharePoint.Publishing.PagesListCPVEventReceiver in Microsoft.SharePoint.Publishing, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c. Additional information is below. : Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED)) For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

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• Thoughts on web development architecture through integrating C++ in the future to a web application

  - by Holland

  I'm looking to build a website (it's actually going to be a commercial startup) I saw this question and it really shed some light on a few things that I was hoping to understand (kudos to the op). After seeing that, it would make sense that, unless the website were required to actually have millions of hits per day, it wouldn't be a viable solution to write a C++ backend on the server side. But this got me thinking. what if it in the (unlikely) events of the future, it does go that route? The problem is that, while I'm thinking of starting this all using .Net (in the beginning) just to get something quick and easy up without a lot of hassle (in terms of learning), and then moving towards something more Open Source (such as Python/Django or RoR) later to save money and to support OSS, I'm wondering IFF the website actually becomes big, will it be a good idea to integrate a C++ backend, and use Python ontop of C++ for a strong foundation, and then mitigate HTML/CSS/AJAX/etc ontop of the backend's foundation? I guess, what I'd like to know is that, given the circumstance, if this were to happen, would it be a proper approach in terms of architecture? I'd definitely be supporting MVC as that seems to be a great way to implement a website. All in all, would one consider this rational, or are there other alternatives? I like .Net, and I'd like to use it in the beginning, because I have much more experience with that than, say, Python or PHP, and I prefer it in general, but I really do want to support OSS in the future. I suppose the sentence I'm looking for is, "is this pragmatic?"

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• IIS 7.5 Request Filtering logs versus UrlScan 3.1

  - by Mouffette

  When IIS 7.5 Request Filtering blocks a request it seems to add an entry into the regular IIS web logs with a 404. a) Is there any way to send the detailed Request Filtering logs to a separate file? UrlScan could specify LoggingDirectory and keep this "noise" out of our real IIS logs b) Also, is there a way to get more information that Request Filtering blocked a request? UrlScan logged the rule that caused the denial as well as control over a redirection using RejectResponseUrl which was especially convenient in non-production sites. c) If these features are important is the recommended practice to still install UrlScan 3.1 on IIS 7.5 (Windows 2008 R2) and disable Request Filtering? Any guidance is appreciated.

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• Oracle Linux Pavilion is Back for Oracle OpenWorld

  - by Oracle OpenWorld Blog Team

  By Zeynep Koch Back by popular demand, Oracle will again host the Oracle Linux Pavilion at Oracle OpenWorld from October 1-3. The pavilion will be located in the Exhibition Hall at Moscone South, Booth 1033, next to the Oracle DEMOgrounds and Oracle Linux demopods. At the pavilion a select group of ISVs, IHVs, and SIs will showcase their products that have been Oracle Linux- and/or Oracle VM-certified. These certified products enable customer applications to run faster, thereby saving money.Partners exhibiting their solutions in the Oracle Linux Pavilion include: BeyondTrust: context-aware security intelligence for dynamic IT infrastructures such as cloud, mobile, and virtual technologies Centrify: control, secure, and audit access to cross-platform systems, mobile devices, and applications Data Intensity: cloud services and application management Fujitsu: technology platforms, private cloud, services, ubiquitous and device solutions HP: converged cloud, converged infrastructure, application transformation, and information optimization LSI: intelligent solid-state storage solutions for breakthrough database acceleration Mellanox: InfiniBand and Ethernet end-to-end server and storage interconnect solutions and services for data centers Micro Focus: mainframe solutions, application modernization and development tools, software quality tools NetApp: storage and data management QLogic: high performance networking Teleran: BI and data warehouse management solutions for Oracle Exadata Database Machine and Oracle Database Be sure to pick up your free Oracle Linux and Oracle VM DVD Kit if you visit one of these partners. We look forward to seeing you at the pavilion.

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• Syslog/kernlog filling up with "did not claim interface N before use"

  - by Wayne Werner

  As I discovered when asking this question, it appears that demond_nscan is trying to use a device without claiming it. And it does it.... hundreds of time per second apparently. This makes kern.log and syslog huge (100GB ). In this particular case the problem is directly a result of some Lexmark drivers that were installed (found at /usr/local/lexmark/unix_scan_drivers/bin/demond_nscan). Here are a few things I know: The drivers are for an all-in-one printer/scanner device. There was a previous lexmark printer-only that was installed with CUPS This driver was the one for CUPS systems, and I think that it automatically added it to the list of printers in CUPS. The issue started spamming kern/syslog only after these drivers were installed, using the lexmark installers While googling around I found this thread that's not completely related, but it does mention that it might be happening when two drivers try to control the same device at the same time. How can I resolve this issue so that either I only have one driver, or get the driver to claim the device before usage?

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• Hyper-V core NIC speeds and registry changes

  - by gary

  Good afternoon, On a Dell PE T610 I have Hyper-V core running, with 2 x Broadcom BCM5709C NetXtreme II GigE installed. I have noticed that copying large files 17GB for example, from a network physical server to the Hyper-V host local drive [not vm guest] is very slow in comparison to copying from Physical to Physical servers. Copying a 17GB file physical to Hyper-V host takes 30 minutes Copying a 17GB file physical to physical host takes 15 minutes Can someone tell me exactly what registry nodes I should disable on Hyper-V NICs to improve performance. So far I have gone to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class{4 D36E972-E325-11CE-BFC1-08002BE10318} and set the following to 0 on both physical NICs: *LSOv1IPv4 *LSOv2IPv6 *TCPUDPChecksumOffloadIPv4 *TCPUDPChecksumOffloadIPv6 Should I also disable *TCPConnectionOffloadIPv4 & *TCPConnectionOffloadIPv6? Many thanks in advance

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• How to disable Tcp/Ip settings in windows 7 via GPO?

  - by Akash Kava

  I have enabled following policies, "Prohibit TCP/IP advanced connection" "Prohibit access to properties of components of a LAN connection" "Enable Windows 2000 Network Connections setings for Administrators" after doing all these, all machines running windows xp, 2000 and vista have network settings properties button disabled as expected. However all machines running windows 7 have no effect, I believe there are few more steps, all Windows 7 machines are on domain and we want to control this via Domain Controler's GPO. Please let me know, what I need to do to have Windows 7 disable the properties of network connection, I am not network expert, I read few articles about what new has been added in GPO of windows 7 but I am blank. Everything works fine on Windows XP, Vista, 2003 Server. Only Windows 7 is a problem.

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• Apache, Django with mod_wsgi, and large request buffering

  - by Mukul

  In my setup of Apache 2.2 MPM worker and Django 1.3 with mod_wsgi 2.8, I need to support large POST request payloads. The problem is that when there are many such simultaneous requests, Apache uses up all the memory in the system and then crashes. It seems that Apache is buffering the requests completely in memory before executing the WSGI handler and passing it the request. Is there any way to control request buffering in Apache? The log shows the following error whenever the crash happens: [Wed Jun 29 18:35:27 2011] [error] cgid daemon process died, restarting Here's my virtual host's configuration: <VirtualHost *:8080> ServerName example.com ErrorLog /var/log/apache2/error.log WSGIScriptAlias / <path to django.wsgi> WSGIPassAuthorization on WSGIDaemonProcess example.com WSGIProcessGroup example.com XSendFileAllowAbove on XSendFile on </VirtualHost>

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