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• How to properly set up a network bridge using bridge-utils using wlan0 as the internet "source"?

  - by Miguel Azevedo

  Hey everyone this is my first post so go easy on me. I currently have a laptop with Ubuntu Studio 12.04 Beta 2 that is supplying a wireless internet connection to a windows 7 desktop computer that's connected directly to the laptop through Ethernet. I'm using the "shared to other computers" method in network manager but I believe it doesn't work with what I want to do. I would like to have the windows computer on the same subnet as every other computer in my house (192.168.1.x) so I can use LAN applications (MIDI over WiFi, Bonjour etc.) on the windows computer without having to run a massive cable to the router. I've been googling endlessly and tried multiple configurations in the /etc/network/interfaces file without success. All of them would report "cannot add wlan0 to bridge" Is there a specific way to make this work? What am I missing? Thank you

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• Had almost 300 GB worth of files with random names on my computer, and now they are gone. Any idea what they were and where they went?

  - by John

  A couple of days ago I noticed I had a folder on my computer with more than 15 files in it. All the files were the exact same size (215 MB). They all had different names (just a bunch of random characters like Abe327(/-38s etc. I wasn't sure what they were so I decided to try to delete them. But then I noticed they disappeared from the D drive. Then the next day I noticed a new folder, with similar names and file sizes showed up on my C drive. The timestamps on the first set of files was almost all from a few months ago. Like the timestamps were saying 3:52 AM, 403 AM, etc. all from the same date. Then the set of files on the C drive that just appeared had yesterday's date on them. But similarly, all the files had timestamps within a 24 hour period. Like they had all just been created. Now this morning, all of those files are gone, and I didn't delete them. There are now no files like this in either drive. Any idea what these files were? Why were they so large, and why are they switching drives? Why did they disappear completely now, after the initial files were there for a few months.

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• 8021x wireless clients auto connect prior to user login

  - by JohnyV

  I am using a 2008 r2 dc that also performs Radius (NPS), I also have a 2008 r2 certificate authority which is giving out certificates. The computers are getting the certificate and when a user logs into the device (that has previously logged in) gets put on the correct VLAN (according to there user access). However I cant get the computers to join the wireless network prior to logging in, so that they can log in with their domain accounts and authenticate through the wireless. The basic setup is Computer gets group policy which tells it to get a certificate the computer then has a seperate vlan to join just as a computer account however the wireless computer wont connect through that vlan. (this vlan allows login information only then once the users credentials are verified it puts them onto another VLAN). So I am trying to work out why the notebook wont auto connect to the wireless network as a computer. Thanks

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• Dissing Architects, or "What's wrong with the coffee?"

  - by Bob Rhubart

  In my conversations with people in architect roles, tales of animosity, disrespect, and outright hostility aren't uncommon. And it's clear that in more than a few organizations architects regularly face a tough uphill climb. For architects with the requisite combination of technical, organizational, and people skills, that rough treatment is grossly undeserved. But tales of unqualified people in positions up and down the IT food chain are also easy to come by. So what's the other side of the architect story? Are some architects tarnishing the role and making life miserable for their more qualified colleagues? The various quotes included below were culled from a variety of sources. The criticism is harsh, and the people behind these quotes clearly have issues with architects. Still, whether based on mere opinion or actual experience, the comments shed some light on behaviors that should raise red flags for anyone pursuing a career as an architect. If you're an architect, and you've ever noticed that your coffee tastes like window cleaner, or your car is repeatedly keyed, or no one ever holds the elevator for you, maybe you need to do a little soul searching... Those Who Can, Code; Those Who Can't, Architect | Joe Winchester [May 18, 2007] "At the moment there seems to be an extremely unhealthy obsession in software with the concept of architecture. A colleague of mine, a recent graduate, told me he wished to become a software architect. He was drawn to the glamour of being able to come up with grandiose ideas - sweeping generalized designs, creating presentations to audiences of acronym addicts, writing esoteric academic papers, speaking at conferences attended by headless engineers on company expense accounts hungrily seeking out this year's grail, and creating e-mails with huge cc lists from people whose signature footer is more interesting than the content. I tried to re-orient him into actually doing some coding, to join a team that has a good product and keen users both of whom are pushing requirements forward, to no avail. Somehow the lure of being an architecture astronaut was too strong and I lost him to the dark side." Don't Let Architecture Astronauts Scare You | Joel Spolsky [April 21, 2001] "It's very hard to get them to write code or design programs, because they won't stop thinking about Architecture. They're astronauts because they are above the oxygen level, I don't know how they're breathing. They tend to work for really big companies that can afford to have lots of unproductive people with really advanced degrees that don't contribute to the bottom line. Remember that the architecture people are solving problems that they think they can solve, not problems which are useful to solve." Non Coding Architects Suck | Richard Henderson [May 24, 2010] "If a guy with a badge saying 'system architect' looks blank on low-level issues then he is not an architect, he is a business-analyst who went on a course. He will probably wax lyrical on all things high-level and 'important.' He will produce lovely object hierarchies without a clue to implementation. He will have a moustache and play golf." Architects Play Golf | Sunir Shah [August 15, 2012] "Often arrogant architects are difficult to get a hold of during the implementation phase because they no longer feel the need to stick around. Especially around midnight when most of the poor sob [sic] developers are still banging away. After all, they've already solved the problem--the rest is just an implementation exercise." Engineer vs Architect(Part of a discussion on the IT Architect Network Group on LinkedIn) "[An] architect spends his time producing white papers full of acronyms he does not understand but that impress his boss [while the] engineer keeps his head down and does the actual job." Architects Don't Code | [Author Unknown] "Faulty belief: System Architects don't need to code anymore. They know what they are talking about by virtue of the fact that they are System Architects."

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• USB to USB CD ROM emulator

  - by JohnnyLambada

  I'm wondering if anyone knows of a CDROM emulator that runs on Linux. I want to emulate this configuration: [CDROM DRIVE]----USB CABLE----[COMPUTER UNDER TEST] Where [COMPUTER UNDER TEST] is a computer that boots from a physical CD inserted into the [CDROM DRIVE]. Only instead of the [CDROM DRIVE] I want the following configuration: [CD IMAGE BUILD MACHINE]-----USB CABLE-----[COMPUTER UNDER TEST]. I want to build an ISO image on the [CD IMAGE BUILD MACHINE] and have some sort of USB CDROM emulator running on it to serve up the ISO image to the [COMPUTER UNDER TEST] as though it was talking to the [CDROM DRIVE]. Does this exist? If it does, I can't find it. I want to do this so I can test out bootable CDs without burning a lot of coasters.

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• Mass Metadata Updates with Folders

  - by Kyle Hatlestad

  With the release of WebCenter Content PS5, a new folder architecture called 'Framework Folders' was introduced.  This is meant to replace the folder architecture of 'Folders_g'.  While the concepts of a folder structure and access to those folders through Desktop Integration Suite remain the same, the underlying architecture of the component has been completely rewritten.  One of the main goals of the new folders is to scale better at large volumes and remove the limitations of 1000 content items or sub-folders within a folder.  Along with the new architecture, it has a new look and a few additional features have been added.  One of those features are Query Folders.  These are folders that are populated simply by a query rather then literally putting items within the folders.  This is something that the Library has provided, but it always took an administrator to define them through the Web Layout Editor.  Now users can quickly define query folders anywhere within the standard folder hierarchy.   Within this new Framework Folders is the very handy ability to do metadata updates.  It's similar to the Propagate feature in Folders_g, but there are some key differences that make this very flexible and much more powerful. It's used within regular folders and Query Folders.  So the content you're updating doesn't all have to be in the same folder...or a folder at all.   The user decides what metadata to propagate.  In Folders_g, the system administrator controls which fields will be propagated using a single administration page.  In Framework Folders, the user decides at that time which fields they want to update. You set the value you want on the propagation screen.  In Folders_g, it used the metadata defined on the parent folder to propagate.  With Framework Folders, you supply the new metadata value when you select the fields you want to update.  It does not have to be defined on the parent folder. Because of these differences, I think the new propagate method is much more useful.  Instead of always having to rely on Archiver or a custom spreadsheet, you can quickly do mass metadata updates right within folders.   Here are the basic steps to perform propagation. First create a folder for the propagation.  You can use a regular folder, but a Query Folder will work as well. Go into the folder to get the results.   In the Edit menu, select 'Propagate'. Select the check-box next to the field to update and enter the new value  Click the Propagate button. Once complete, a dialog will appear showing it is complete What's also nice is that the process happens asynchronously in the background which means you can browse to other pages and do other things while it is still working.  You aren't stuck on the page waiting for it to complete.  In addition, you can add a configuration flag to the server to turn on a status indicator icon.  Set 'FldEnableInProcessIndicator=1' and it will show a working icon as its doing the propagation. There is a caveat when using the propagation on a Query Folder.   While a propagation on a regular folder will update all of the items within that folder, a Query Folder propagation will only update the first 50 items.  So you may need to run it multiple times depending on the size...and have the query exclude the items as they get updated. One extra note...Framework Folders is offered as the default folder architecture in the PS5 release of WebCenter Content.  But if you are using WebCenter Content integrated with another product that makes use of folders (WebCenter Portal/Spaces, Fusion Applications, Primavera, etc), you'll need to continue using Folders_g until they are updated to use the new folders.

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• Xubuntu 14.04 resolution low

  - by user3203576

  I installed Xubuntu 14.04 amd64 on the computer at the computer repair shop where I work, but the screen resolution is way low, like 1024 x 768 (that wouldn't be low for a laptop or anything, but for a large desktop screen it is) I went to the display settings, but the resolution wouldn't go higher than that. When I installed Xubuntu 14.04 i386 at my computer at home, I didn't have any problems with the resolution. Any help? update: I ran lspci | grep VGA and got: 00:0d.0 VGA compatible controller: NVIDIA Corporation C61 [GeForce 6150SE nForce 430] (rev a2)

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• Fight for your rights as a video gamer.

  - by Chris Williams

  Soon, the U.S. Supreme Court may decide whether to hear a case that could have a lasting impact on computer and video games. The case before the Court involves a law passed by the state of California attempting to criminalize the sale of certain computer and video games. Two previous courts rejected the California law as unconstitutional, but soon the Supreme Court could have the final say. Whatever the Court's ruling, we must be prepared to continue defending our rights now and in the future. To do so, we need a large, powerful movement of gamers to speak with one voice and show that we won't sit back while lawmakers try to score political points by scapegoating video games and treating them differently than books, movies, and music. If the Court decides to hear the case, we're going to need thousands of activists like you who can help defend computer and video games by writing letters to editors, calling into talk radio stations, and educating Americans about our passion for and appreciation of computer and video games. You can help build this movement right now by inviting all your friends and fellow gamers to join the Video Game Voters Network. Use our simple tool to send an email to everyone you know asking them to stand up for gaming rights: http://videogamevoters.org/movement You can also help spread the word through Facebook and Twitter, or you can simply forward this email to everyone you know and ask them to sign up at videogamevoters.org. Time after time, courts continue to reject politicians' efforts to restrict the sale of computer and video games. But that doesn't mean the politicians will stop trying anytime soon -- in fact, it means they're likely to ramp up their efforts even more. To stop them, we must make it clear that gamers will continue to stand up for free speech -- and that the numbers are on our side. Help make sure we're ready and able to keep fighting for our gaming rights. Spread the word about the Video Game Voters Network right now: http://videogamevoters.org/movement Thank you. -- Video Game Voters Network

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• [SOLVED]Need help with remote dekstop - Limit the computers you can access server from

  - by stirredo

  I have a windows server 2003 computer that is accessed by remote desktop connection. To access the server all you need to know is the IP address of the computer. I want to limit the computers that can access the windows server computer to authorized computers only. The authorized computers won't have static IPs, so I cannot limit them on basis of IP address. Can I limit them on basis of MAC id perhaps? I won't mind using third party solution like Teamviewer or Logmein etc. So How can I solve this problem? EDIT: Found a possible solution in team viewer. Team viewer creates a unique partner ID for the computer it is installed on. It has an option for allowing only authorized partner IDs to access the computer. Problem solved.

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• Unknown filesystem error

  - by Ben

  My computer has (had) a dual boot of Ubuntu Precise and Windows 7. Recently, when I started the computer, grub gave me an error saying "Unknown filesystem", and sent me to grub rescue. I searched for solutions to this, and found this answer: Unknown filesystem error: grub rescue. I followed the instructions there, but they didn't really help: when I restarted the computer, it went straight to Windows without grub intervening at all (so it boots successfully, just not to the OS I want). This is the log from boot-repair. My Ubuntu partition is sda6. Naturally, I'm a little worried, since the log says "unknown filesystem type ''", which to me looks like the partition might be corrupt somehow. From the Ubuntu Live CD, I started gparted and looked at my partitions, and it also told me that my sda6 is an unknown filesystem. So my questions are basically: Can I restore Ubuntu to the way it was? If not, can I at least rescue the data I had on the partition somehow? Again, if I can't restore Ubuntu, how do I clean everything up so that I can reinstall it without too many complications? Another thing I should mention is that yesterday I had a similar problem where the computer told me there was a problem with the hard drive when it was starting, but it fixed itself by running fsck (that time it got past grub, and managed to start Ubuntu). Between that occasion and me having trouble booting the computer today, I have booted it successfully at least twice. Thanks for any help!

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• Why does my system use so much cache?

  - by Dave M G

  Previously, on my desktop computer running Ubuntu 14.04, I had 4GB RAM, which I thought should be plenty. However, after being on for a while, my computer would seem to get slow. I have a system resource monitor app in my Gnome panel, which I assume represents the available RAM (?). It shows a dark green area as being "Memory", and a light green area as "Cache". The "Cache" would slowly grow until it filled the whole graph, and then programs would get slow to load, or it would take a while to switch programs. I could alleviate the problem somewhat with this command, but eventually the computer cache fills up again, so it's only a bandaid: sudo sh -c "sync; echo 3 > /proc/sys/vm/drop_caches" So, I figured I'd get more RAM, so I replaced one 2GB stick with an 8GB stick, and now I have 10 GB ram. And my "cache" still slowly maxes out and my computer slows as a result. Also, sometimes the computer starts out with "cache" maxed when I first boot and log in. Not always though, I don't know if there's a pattern that determines why it happens. Why is Ubuntu using up so much cache? Is 10GB not enough for Ubuntu? Here's what my system monitor looks like in my Gnome panel. The middle square shows RAM usage. The light green area is the "cache": This is my memory and swap history, which doesn't seem to include any information about "cache". I realize at this point I'm not totally clear on the difference between "cache" and "swap":

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• Can't connect to domain computers until reboot

  - by thealliedhacker

  I have a domain with about 300 Windows 7 and XP machines, with the domain controllers running Server 2003. Sometimes, I lose the ability to communicate/authenticate with some of the machines until I reboot my computer. This also happens from other computers and regardless of user account and operating system. In other words, say I'm on ComputerA, and I can't connect to ComputerX. I can go to ComputerB and connect to ComputerX, but ComputerB may not be able to connect to ComputerY. If you reboot ComputerA, then it will be able to connect to ComputerX again. Here are some messages from various utilities: sc: [SC] OpenSCManager FAILED 1722: The RPC server is unavailable. mmc (compmgmt.msc): Computer (computer name) cannot be managed. The network path was not found. explorer (\\computer): Windows cannot access \\(computer name). ping: Packets: Sent = 4, Received = 4, Lost = 0 (0% loss) / Average = 1ms

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• CS Concentrations and Career Paths

  - by xbonez

  I'm approaching the end of Sophomore year in college (Studying Computer Science), and very soon I'm going to have to decide on my concentration, but I honestly don't know what each concentration means. I basically have two questions: 1. How much influence does your concentration have on your career path? For example, would a video game development company only look at people with a concentration in Game Development? 2.It would be great if you guys could, in a line or two, tell me what sort of jobs am I looking at for each of the concentrations? I need to pick at least two of the 9 below. - Algorithms and Data Structures - Artificial Intelligence - Computer and Network Society - Computer graphics and vision - Human-Computer Interaction - Game Development and Design - Numeric and Symbolic Computation - Programming languages - Systems

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• Ubuntu 14.04 : Lost my sound randomly tried a few commands and I think I failed

  - by Marc-Antoine Théberge

  I lost my sound the other day and I tried to delete pulseaudio then reinstall, then I tried to delete it and install alsa, It did not work and I had to reinstall everything; overall bad idea... now I can't have any sound. Should I do a fresh install? I don't know how to boot an usb drive with GRUB... Here's my sysinfo System information report, generated by Sysinfo: 2014-05-28 05:45:58 http://sourceforge.net/projects/gsysinfo SYSTEM INFORMATION Running Ubuntu Linux, the Ubuntu 14.04 (trusty) release. GNOME: 3.8.4 (Ubuntu 2014-03-17) Kernel version: 3.13.0-27-generic (#50-Ubuntu SMP Thu May 15 18:08:16 UTC 2014) GCC: 4.8 (i686-linux-gnu) Xorg: 1.15.1 (16 April 2014 01:40:08PM) (16 April 2014 01:40:08PM) Hostname: mark-laptop Uptime: 0 days 11 h 43 min CPU INFORMATION GenuineIntel, Intel(R) Atom(TM) CPU N270 @ 1.60GHz Number of CPUs: 2 CPU clock currently at 1333.000 MHz with 512 KB cache Numbering: family(6) model(28) stepping(2) Bogomips: 3192.13 Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl est tm2 ssse3 xtpr pdcm movbe lahf_lm dtherm MEMORY INFORMATION Total memory: 2007 MB Total swap: 1953 MB STORAGE INFORMATION SCSI device - scsi0 Vendor: ATA Model: ST9160310AS HARDWARE INFORMATION MOTHERBOARD Host bridge Intel Corporation Mobile 945GSE Express Memory Controller Hub (rev 03) Subsystem: ASUSTeK Computer Inc. Device 8340 PCI bridge(s) Intel Corporation NM10/ICH7 Family PCI Express Port 1 (rev 02) (prog-if 00 [Normal decode]) Intel Corporation NM10/ICH7 Family PCI Express Port 2 (rev 02) (prog-if 00 [Normal decode]) Intel Corporation NM10/ICH7 Family PCI Express Port 4 (rev 02) (prog-if 00 [Normal decode]) Intel Corporation 82801 Mobile PCI Bridge (rev e2) (prog-if 01 [Subtractive decode]) Intel Corporation NM10/ICH7 Family PCI Express Port 1 (rev 02) (prog-if 00 [Normal decode]) Intel Corporation NM10/ICH7 Family PCI Express Port 2 (rev 02) (prog-if 00 [Normal decode]) Intel Corporation NM10/ICH7 Family PCI Express Port 4 (rev 02) (prog-if 00 [Normal decode]) Intel Corporation 82801 Mobile PCI Bridge (rev e2) (prog-if 01 [Subtractive decode]) ISA bridge Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge (rev 02) Subsystem: ASUSTeK Computer Inc. Device 830f IDE interface Intel Corporation 82801GBM/GHM (ICH7-M Family) SATA Controller [IDE mode] (rev 02) (prog-if 80 [Master]) Subsystem: ASUSTeK Computer Inc. Device 830f GRAPHIC CARD VGA controller Intel Corporation Mobile 945GSE Express Integrated Graphics Controller (rev 03) (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. Device 8340 SOUND CARD Multimedia controller Intel Corporation NM10/ICH7 Family High Definition Audio Controller (rev 02) Subsystem: ASUSTeK Computer Inc. Device 831a NETWORK Ethernet controller Qualcomm Atheros AR8121/AR8113/AR8114 Gigabit or Fast Ethernet (rev b0) Subsystem: ASUSTeK Computer Inc. Device 8324

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• How to setup an encrypted voip structure?

  - by strapakowsky

  What is the simplest way to set up a voip structure in a Linux machine with the following features: 1) Using free software 2) For computer-to-computer calls: end-to-end encryption set by the users, unpaid, no central authority (so skype is out) 3) For computer-to-phone calls: paid or unpaid, desirable encryption on the computer side if that is even possible 4) Ability to have a number to receive calls from regular phones My research concluded that the sip protocol is the most popular. However most discussions I've read on sip are too technical and I felt it discourages the regular user who wants to just click and talk. So I put the question above and created some separate questions about privacy with sip registrars, privacy with voip suppliers, what to look for in a sip registrar, what to look for in a voip provider. As for the software, I noticed most software either don't provide encryption (eg Ekiga) or the software doesn't work nicely and the project is abandoned (eg Twinkle), so no option seemed satisfying.

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• 2010 Sloan Research Fellowships Announced

  16 fellowships go to computer scientists United States - Education - Colleges and Universities - Research - California

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• Mastering Multicore

  Researchers find a way to make complex computer simulations run more efficiently on chips with multiple processors Computer simulation - Business - Hardware - Processors - Components

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• Delivering SOA Governance with EAMS and Oracle Enterprise Repository by Link Consulting Team

  - by JuergenKress

  In the last 12 years Link Consulting has been making its presence in specific areas such as Governance and Architecture, both in terms of practices and methodologies, products, know-how and technological expertise. The Enterprise Architecture Management System - Oracle Enterprise Edition (EAMS - OER Edition) is the result of this experience and combines the architecture management solution with OER in order to deliver a product specialized for SOA Governance that gathers the better of two worlds in solution that enables SOA Governance projects, initiatives and programs. Enterprise Architecture Management System Enterprise Architecture Management System (EAMS), is an automation based solution that enables the efficient management of Enterprise Architectures. The solution uses configured enterprise repositories and takes advantages of its features to provide automation capabilities to the users. EAMS provides capabilities to create/customize/analyze repository data, architectural blueprints, reports and analytic charts. Oracle Enterprise Repository Oracle Enterprise Repository (OER) is one of the major and central elements of the Oracle SOA Governance solution. Oracle Enterprise Repository provides the tools to manage and govern the metadata for any type of software asset, from business processes and services to patterns, frameworks, applications, components, and models. OER maps the relationships and inter-dependencies that connect those assets to improve impact analysis, promote and optimize their reuse, and measure their impact on the bottom line. It provides the visibility, feedback, controls, and analytics to keep your SOA on track to deliver business value. The intense focus on automation helps to overcome barriers to SOA adoption and streamline governance throughout the lifecycle. Core capabilities of the OER include: Asset Management Asset Lifecycle Management Usage Tracking Service Discovery Version Management Dependency Analysis Portfolio Management EAMS - OER Edition The solution takes the advantages and features from both products and combines them in a symbiotic tool that enhances the quality of SOA Governance Initiatives and Programs. EAMS is able to produce a vast number of outputs by combining its analytical engine, SOA-specific configurations and the assets in OER and other related tools, catalogs and repositories. The configurations encompass not only the extendable parametrization of the metadata but also fully configurable blueprints, PowerPoint reports, charts and queries. The SOA blueprints The solution comes with a set of predefined architectural representations that help the organization better perceive their SOA landscape. More blueprints can be easily created in order to accommodate the organizations needs in terms of detail, audience and metadata. Charts & Dashboards The solution encompasses a set of predefined charts and dashboards that promote a more agile way to control and explore the assets. Time Based Visualization All representations are time bound, and with EAMS - OER you can truly govern SOA with a complete view of the Past, Present and Future; The solution delivers Gap Analysis, a project oriented approach while taking into consideration the As-Was, As-Is an To-Be. Time based visualization differentiating factors: Extensive automation and maintenance of architectural representations Organization wide solution. Easy access and navigation to and between all architectural artifacts and representations. Flexible meta-model, customization and extensibility capabilities. Lifecycle management and enforcement of the time dimension over all the repository content. Profile based customization. Comprehensive visibility Architectural alignment Friendly and striking user interfaces For more information on EAMS visit us here. For more information on SOA visit us here. SOA & BPM Partner Community For regular information on Oracle SOA Suite become a member in the SOA & BPM Partner Community for registration please visit  www.oracle.com/goto/emea/soa (OPN account required) If you need support with your account please contact the Oracle Partner Business Center. Blog Twitter LinkedIn Mix Forum Technorati Tags: Link Consulting,OER,OSR,SOA Governance,SOA Community,Oracle SOA,Oracle BPM,BPM Community,OPN,Jürgen Kress

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• How to share a VPN connection in a VMWare Guest VM with the Host

  - by Jonathan

  The need - This question is relevant for all of those who want to bypass their corporate's annoying VPN, and access their work/corporate network from their private computer, especially if the corporate VPN client software can't run on their private computer. Homework: this question is very similar to this one and this one, which aren't answered :( The challange - Can't run the corporate VPN client from the private computer, so converted the work laptop to a VMWare Virtual Machine. The VPN client is working fine inside the Guest VM, now we want to share it with the Host (the private computer) The specs: * The private computer (Host OS) is Mac OS X Lion 64bit * The corporate laptop (Guest VM) is WinXP 32bit, running in Bridged network mode * The VPN client on the Guest VM is is Checkpoint SecuRemote NGX R60 HFA03 * While the VPN is running in the Guest VM, the Host can still ping the Guest and vice versa

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• ArchBeat Link-o-Rama Top 10 for November 2012

  - by Bob Rhubart

  Every day ArchBeat searches the web for content created by and for community members, and then shares that content via social media. Here's the list of the Top 10 most popular items posted on the OTN ArchBeat Facebook Page for November 2012. One-Stop Shop for Oracle Webcasts Webcasts can be a great way to get information about Oracle products without having to go cross-eyed reading yet another document off your computer screen. Oracle's new Webcast Center offers selectable filtering to make it easy to get to the information you want. Yes, you have to register to gain access, but that process is quick, and with over 200 webcasts to choose from you know you'll find useful content. OAM/OVD JVM Tuning Vinay from the Oracle Fusion Middleware Architecture Group (otherwise known as the A-Team) shares a process for analyzing and improving performance in Oracle Virtual Directory and Oracle Access Manager. White Paper: Oracle Exalogic Elastic Cloud: Advanced I/O Virtualization Architecture for Consolidating High-Performance Workloads This new white paper by Adam Hawley (with contributions from Yoav Eilat) describes in great detail the incorporation into Oracle Exalogic of virtualized InfiniBand I/O interconnects using Single Root I/O Virtualization (SR-IOV) technology. Architected Systems: "If you don't develop an architecture, you will get one anyway..." "Can you build a system without taking care of architecture?," asks Manuel Ricca. "You certainly can. But inevitably the system will be unbalanced, neglecting the interests of key stakeholders, and problems will soon emerge." Backup and Recovery of an Exalogic vServer via rsync "On Exalogic a vServer will consist of a number of resources from the underlying machine," says the man known only as Donald. "These resources include compute power, networking and storage. In order to recover a vServer from a failure in the underlying rack all of these components have to be thoughts about. This article only discusses the backup and recovery strategies that apply to the storage system of a vServer." This Week on the OTN Architect Community Home Page Make time to check out this week's features on the OTN Solution Architect Homepage, including: SOA Practitioner Guide: Identifying and Discovering Services Technical article by Yuli Vasiliev on Setting Up, Configuring, and Using an Oracle WebLogic Server Cluster Podcast: Are You Future Proof? Clustering ODI11g for High-Availability Part 1: Introduction and Architecture | Richard Yeardley "JEE agents can be deployed alongside, or instead of, standalone agents," says Rittman Meade's Richard Yeardley. "But there is one key advantage in using JEE agents and WebLogic – when you deploy JEE agents as part of a WebLogic cluster they can be configured together to form a high availability cluster." Learn more in Yeardley's extensive post. OIM 11g : Multi-thread approach for writing custom scheduled job | Saravanan V S Saravanan shares insight and expertise relevant to "designing and developing an OIM schedule job that uses multi threaded approach for updating data in OIM using APIs." How to Create Virtual Directory in Weblogic Server | Zeeshan Baig Oracle ACE Zeeshan Baig shows you how in six easy steps. SOA Galore: New Books for Technical Eyes Only Shake up up your technical skills with this trio of new technical books from community members covering SOA and BPM. Thought for the Day "Humans are the best value in computers -- where else can you get a non-linear computer weighing only about 160lbs, having a billion binary decision elements, that can be mass-produced by unskilled labour?" — Anonymous Source: SoftwareQuotes.com

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• Most efficient way to implement delta time

  - by Starkers

  Here's one way to implement delta time: /// init /// var duration = 5000, currentTime = Date.now(); // and create cube, scene, camera ect ////// function animate() { /// determine delta /// var now = Date.now(), deltat = now - currentTime, currentTime = now, scalar = deltat / duration, angle = (Math.PI * 2) * scalar; ////// /// animate /// cube.rotation.y += angle; ////// /// update /// requestAnimationFrame(render); ////// } Could someone confirm I know how it works? Here what I think is going on: Firstly, we set duration at 5000, which how long the loop will take to complete in an ideal world. With a computer that is slow/busy, let's say the animation loop takes twice as long as it should, so 10000: When this happens, the scalar is set to 2.0: scalar = deltat / duration scalar = 10000 / 5000 scalar = 2.0 We now times all animation by twice as much: angle = (Math.PI * 2) * scalar; angle = (Math.PI * 2) * 2.0; angle = (Math.PI * 4) // which is 2 rotations When we do this, the cube rotation will appear to 'jump', but this is good because the animation remains real-time. With a computer that is going too quickly, let's say the animation loop takes half as long as it should, so 2500: When this happens, the scalar is set to 0.5: scalar = deltat / duration scalar = 2500 / 5000 scalar = 0.5 We now times all animation by a half: angle = (Math.PI * 2) * scalar; angle = (Math.PI * 2) * 0.5; angle = (Math.PI * 1) // which is half a rotation When we do this, the cube won't jump at all, and the animation remains real time, and doesn't speed up. However, would I be right in thinking this doesn't alter how hard the computer is working? I mean it still goes through the loop as fast as it can, and it still has render the whole scene, just with different smaller angles! So this a bad way to implement delta time, right? Now let's pretend the computer is taking exactly as long as it should, so 5000: When this happens, the scalar is set to 1.0: angle = (Math.PI * 2) * scalar; angle = (Math.PI * 2) * 1; angle = (Math.PI * 2) // which is 1 rotation When we do this, everything is timsed by 1, so nothing is changed. We'd get the same result if we weren't using delta time at all! My questions are as follows Mostly importantly, have I got the right end of the stick here? How do we know to set the duration to 5000 ? Or can it be any number? I'm a bit vague about the "computer going too quickly". Is there a way loop less often rather than reduce the animation steps? Seems like a better idea. Using this method, do all of our animations need to be timesed by the scalar? Do we have to hunt down every last one and times it? Is this the best way to implement delta time? I think not, due to the fact the computer can go nuts and all we do is divide each animation step and because we need to hunt down every step and times it by the scalar. Not a very nice DSL, as it were. So what is the best way to implement delta time? Below is one way that I do not really get but may be a better way to implement delta time. Could someone explain please? // Globals INV_MAX_FPS = 1 / 60; frameDelta = 0; clock = new THREE.Clock(); // In the animation loop (the requestAnimationFrame callback)… frameDelta += clock.getDelta(); // API: "Get the seconds passed since the last call to this method." while (frameDelta >= INV_MAX_FPS) { update(INV_MAX_FPS); // calculate physics frameDelta -= INV_MAX_FPS; } How I think this works: Firstly we set INV_MAX_FPS to 0.01666666666 How we will use this number number does not jump out at me. We then intialize a frameDelta which stores how long the last loop took to run. Come the first loop frameDelta is not greater than INV_MAX_FPS so the loop is not run (0 = 0.01666666666). So nothing happens. Now I really don't know what would cause this to happen, but let's pretend that the loop we just went through took 2 seconds to complete: We set frameDelta to 2: frameDelta += clock.getDelta(); frameDelta += 2.00 Now we run an animation thanks to update(0.01666666666). Again what is relevance of 0.01666666666?? And then we take away 0.01666666666 from the frameDelta: frameDelta -= INV_MAX_FPS; frameDelta = frameDelta - INV_MAX_FPS; frameDelta = 2 - 0.01666666666 frameDelta = 1.98333333334 So let's go into the second loop. Let's say it took 2(? Why not 2? Or 12? I am a bit confused): frameDelta += clock.getDelta(); frameDelta = frameDelta + clock.getDelta(); frameDelta = 1.98333333334 + 2 frameDelta = 3.98333333334 This time we enter the while loop because 3.98333333334 = 0.01666666666 We run update We take away 0.01666666666 from frameDelta again: frameDelta -= INV_MAX_FPS; frameDelta = frameDelta - INV_MAX_FPS; frameDelta = 3.98333333334 - 0.01666666666 frameDelta = 3.96666666668 Now let's pretend the loop is super quick and runs in just 0.1 seconds and continues to do this. (Because the computer isn't busy any more). Basically, the update function will be run, and every loop we take away 0.01666666666 from the frameDelta untill the frameDelta is less than 0.01666666666. And then nothing happens until the computer runs slowly again? Could someone shed some light please? Does the update() update the scalar or something like that and we still have to times everything by the scalar like in the first example?

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• How to properly shutdown or reboot a Unix/Linux server

  - by hatorade

  What is the correct way to turn off a Unix/Linux server? From my googling, I have learned (hopefully) the following: shutdown: I should use this, with the parameter -h to halt, or the parameter -r to reboot halt: halts the computer (stops the processor? does this physically turn the power of the computer off?). I think this will call shutdown if not at init0, otherwise just halts. reboot: if not at init6, calls shutdown, otherwise just reboots the computer. if all that is correct, then the only thing I can't figure out is what exactly 'halt' does. Does it just stop the processor but not turn the computer physically off? How do I "poweroff" the computer? Thanks

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• Fresh Diagnose

  A free utility for analyzing and benchmarking your computer system

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• Problem with blue-sceens

  - by Oystein

  Hi I have a problem with my computer. I get bluescreens a lot. I get different bluescreen-codes everytime, and this happens randomly. This can happen when I boot my computer, when I'm surfing on the internett, when I'm away from the computer and are logged out... I tried to disconnect everything that was connected to my computer, beside the monitor. That didn't help. I have reinstalled Windows, changed memory, changed video card, but nothing of this helped, I still get bluescreens. I guess the problem here is the mothercard, CPU or HDD. But I want your opinion before I order anything new to my computer. Can you tell me what the problem is?

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• Download the Spectacular Skies Theme for Windows 7

  - by Asian Angel

  Freshening up the scenery on your desktop every so often can help make the time spent in front of your computer more pleasant. Today’s featured theme will add a dramatic look to your desktop with a terrific set of Spectacular Skies wallpapers. The theme comes with eleven images featuring the awesome, eye-catching photography of Marco Muller. Download the Spectacular Skies Theme [via Softpedia] How Hackers Can Disguise Malicious Programs With Fake File Extensions Can Dust Actually Damage My Computer? What To Do If You Get a Virus on Your Computer

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