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  • Microsoft Silverlight Analytics Framework - Day 2 Part 2 of MIX 2010

    - by GeekAgilistMercenary
    I went to the session on Microsoft Silverlight Analytics Framework (MSAF) today while here at MIX 2010.  It was a great walk through the features, ideas, and what the end goal is.  Michael Scherotter did a great job of lining up the ideas, intentions, and the functional ideas behind the framework. The framework is built around the Silverlight Behaviors.  If you aren't sure what behaviors are, check out these entries from Nikhilk.net Silverlight Behaviors, Silverlight 3 Drag Behavior, An Introduction to Behaviors, Triggers, and Actions, and of course the MSDN Documentation on the matter. Some of the key features of the framework is to support out-of-browser scenarios, which works perfectly with out Webtrends DX Web Services.  Offline scenarios, which again, we have worked toward supporting at Webtrends DC Web Services via caching and other criteria as needed.  Another feature that I was really stoked about is the Microsoft Expression Blend integration that removes the need for coding, thus simplifying the addition of analytics components based on events or other actions within a Silverlight Application.  This framework also easily supports A/B Testing (again, something we do quit a bit of at Webtrends with Webtrends Optimize. The last thing I really wanted to point out was the control support that this framework has support in already from Telerik RadControls, Smooth Streaming Media Element, and Microsoft Silverlight Media Framework Player 1.0.  These are implemented with behaviors and handlers exposed via MEF (Managed Extensibility Framework). All in all, great second day, great analytics framework for Silverlight, and great presentation.  Until tomorrow, adieu. For this original entry and all sorts of other technical gibberish I write, check out my other blog Agilist Mercenary.

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  • Is anyone else using OpenBSD as a router in the enterprise? What hardware are you running it on?

    - by Kamil Kisiel
    We have an OpenBSD router at each of our locations, currently running on generic "homebrew" PC hardware in a 4U server case. Due to reliability concerns and space considerations we're looking at upgrading them to some proper server-grade hardware with support etc. These boxes serve as the routers, gateways, and firewalls at each site. At this point we're quite familiar with OpenBSD and Pf, so hesitant at moving away from the system to something else such as dedicated Cisco hardware. I'm currently thinking of moving the systems to some HP DL-series 1U machines (model yet to be determined). I'm curious to hear if other people use a setup like this in their business, or have migrated to or away from one.

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  • Speaker at the German Visual FoxPro Developer Conference 2005

    The following is an excerpt from the UniversalThread conference coverage of the German Visual FoxPro Developer Conference 2005 written by Armin Neudert and Jan Vit. Unfortunately, my sessions were not covered at all but I was there as a speaker after all: [...] We are happy to welcome back several speakers that have already been giving sessions in previous DevCons, but hadn’t been here for one or more years. In detail: Steven Black is back after several years. Marcia Akins and her husband Andy Kramek couldn’t come in 2004 and are back again now. Regarding German speakers, Andreas Flohr and Torsten Weggen are also here again, after not doing sessions for two, respectively four years at this conference. At this point we would like to send some regards to the speakers that couldn’t come to Frankfurt this year, since they are very busy at the moment or are doing sessions anywhere else in the world right now. We are also proud to announce several speakers that are here for the very first time. Welcome to Doug Hennig, Rick Schumer, Craig Berntson, Marcus Luz and Benjamin Anders. And of course, there all the well known speakers which did great sessions over the last years: Sebastian Flucke, Uwe Habermann, Peter Herzog, Venelina Jordanova, Dan Jurden, Jochen Kirstätter, Nathalie Mengel, Lisa Slater Nichols, Michael Niethammer, Rick Strahl, Markus Winhard, Eugen Wirsing, Christof Wollenhaupt and myself - Armin Neudert :-) [...]

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  • connecting to freenx server : configuration error

    - by Sandeep
    I am not able to pin point what is missing. I have configured freenx-server (useradd, passwd etc). However, server drops the connection after authentication. Please note my server is ubuntu 10.04 and client recent version. Below is the error log NX> 203 NXSSH running with pid: 6016 NX> 285 Enabling check on switch command NX> 285 Enabling skip of SSH config files NX> 285 Setting the preferred NX options NX> 200 Connected to address: 192.168.2.2 on port: 22 NX> 202 Authenticating user: nx NX> 208 Using auth method: publickey HELLO NXSERVER - Version 3.2.0-74-SVN OS (GPL, using backend: 3.5.0) NX> 105 hello NXCLIENT - Version 3.2.0 NX> 134 Accepted protocol: 3.2.0 NX> 105 SET SHELL_MODE SHELL NX> 105 SET AUTH_MODE PASSWORD NX> 105 login NX> 101 User: sandeep NX> 102 Password: NX> 103 Welcome to: ubuntu user: sandeep NX> 105 listsession --user="sandeep" --status="suspended,running" --geometry="1366x768x24+render" --type="unix-gnome" NX> 127 Sessions list of user 'sandeep' for reconnect: Display Type Session ID Options Depth Screen Status Session Name ------- ---------------- -------------------------------- -------- ----- -------------- ----------- ------------------------------ NX> 148 Server capacity: not reached for user: sandeep NX> 105 startsession --link="lan" --backingstore="1" --encryption="1" --cache="16M" --images="64M" --shmem="1" --shpix="1" --strict="0" --composite="1" --media="0" --session="t" --type="unix-gnome" --geometry="1366x768" --client="linux" --keyboard="pc105/us" --screeninfo="1366x768x24+render" ssh_exchange_identification: Connection closed by remote host NX> 280 Exiting on signal: 15

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  • Can't the NetworkManager applet to appear in the Gnome panel in Ubuntu

    - by Nate
    I have researched this problem extensively and I can't seem to find an answer. In Ubuntu 10.04 LTS, I want to connect to my VPN through the NetworkManager applet. I installed all the network manager packages, including the gnome client. I understand I need to add the "Notification Area" to the panel, which I have done. I checked that the NetworkManager is running: nate@nate-desktop:~$ service network-manager status network-manager start/running, process 763 In /etc/NetworkManager/nm-system-settings.conf, I have added managed=true (don't know if this matters, but I saw it suggested on one forum): nate@nate-desktop:~$ more /etc/NetworkManager/nm-system-settings.conf # This file is installed into /etc/NetworkManager, and is loaded by # NetworkManager by default. To override, specify: '--config file' # during NM startup. This can be done by appending to DAEMON_OPTS in # the file: # # /etc/default/NetworkManager # [main] plugins=ifupdown,keyfile [ifupdown] #managed=false managed=true At this point, it looks like NetworkManager is running but it's not appearing in the NotificationArea of the panel. I don't know what else to try. Any ideas?

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  • Can't the NetworkManager applet to appear in the Gnome panel in Ubuntu

    - by Nate
    I have researched this problem extensively and I can't seem to find an answer. In Ubuntu 10.04 LTS, I want to connect to my VPN through the NetworkManager applet. I installed all the network manager packages, including the gnome client. I understand I need to add the "Notification Area" to the panel, which I have done. I checked that the NetworkManager is running: nate@nate-desktop:~$ service network-manager status network-manager start/running, process 763 In /etc/NetworkManager/nm-system-settings.conf, I have added managed=true (don't know if this matters, but I saw it suggested on one forum): nate@nate-desktop:~$ more /etc/NetworkManager/nm-system-settings.conf # This file is installed into /etc/NetworkManager, and is loaded by # NetworkManager by default. To override, specify: '--config file' # during NM startup. This can be done by appending to DAEMON_OPTS in # the file: # # /etc/default/NetworkManager # [main] plugins=ifupdown,keyfile [ifupdown] #managed=false managed=true At this point, it looks like NetworkManager is running but it's not appearing in the NotificationArea of the panel. I don't know what else to try. Any ideas?

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  • IPgallery banks on Solaris SPARC

    - by Frederic Pariente
    IPgallery is a global supplier of converged legacy and Next Generation Networks (NGN) products and solutions, including: core network components and cloud-based Value Added Services (VAS) for voice, video and data sessions. IPgallery enables network operators and service providers to offer advanced converged voice, chat, video/content services and rich unified social communications in a combined legacy (fixed/mobile), Over-the-Top (OTT) and Social Community (SC) environments for home and business customers. Technically speaking, this offer is a scalable and robust telco solution enabling operators to offer new services while controlling operating expenses (OPEX). In its solutions, IPgallery leverages the following Oracle components: Oracle Solaris, Netra T4 and SPARC T4 in order to provide a competitive and scalable solution without the price tag often associated with high-end systems. Oracle Solaris Binary Application Guarantee A unique feature of Oracle Solaris is the guaranteed binary compatibility between releases of the Solaris OS. That means, if a binary application runs on Solaris 2.6 or later, it will run on the latest release of Oracle Solaris.  IPgallery developed their application on Solaris 9 and Solaris 10 then runs it on Solaris 11, without any code modification or rebuild. The Solaris Binary Application Guarantee helps IPgallery protect their long-term investment in the development, training and maintenance of their applications. Oracle Solaris Image Packaging System (IPS) IPS is a new repository-based package management system that comes with Oracle Solaris 11. It provides a framework for complete software life-cycle management such as installation, upgrade and removal of software packages. IPgallery leverages this new packaging system in order to speed up and simplify software installation for the R&D and production environments. Notably, they use IPS to deliver Solaris Studio 12.3 packages as part of the rapid installation process of R&D environments, and during the production software deployment phase, they ensure software package integrity using the built-in verification feature. Solaris IPS thus improves IPgallery's time-to-market with a faster, more reliable software installation and deployment in production environments. Extreme Network Performance IPgallery saw a huge improvement in application performance both in CPU and I/O, when running on SPARC T4 architecture in compared to UltraSPARC T2 servers.  The same application (with the same activation environment) running on T2 consumes 40%-50% CPU, while it consumes only 10% of the CPU on T4. The testing environment comprised of: Softswitch (Call management), TappS (Telecom Application Server) and Billing Server running on same machine and initiating various services in capacity of 1000 CAPS (Call Attempts Per Second). In addition, tests showed a huge improvement in the performance of the TCP/IP stack, which reduces network layer processing and in the end Call Attempts latency. Finally, there is a huge improvement within the file system and disk I/O operations; they ran all tests with maximum logging capability and it didn't influence any benchmark values. "Due to the huge improvements in performance and capacity using the T4-1 architecture, IPgallery has engineered the solution with less hardware.  This means instead of deploying the solution on six T2-based machines, we will deploy on 2 redundant machines while utilizing Oracle Solaris Zones and Oracle VM for higher availability and virtualization" Shimon Lichter, VP R&D, IPgallery In conclusion, using the unique combination of Oracle Solaris and SPARC technologies, IPgallery is able to offer solutions with much lower TCO, while providing a higher level of service capacity, scalability and resiliency. This low-OPEX solution enables the operator, the end-customer, to deliver a high quality service while maintaining high profitability.

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  • Cisco ASA - VPN and Hairpinning....

    - by Nordberg
    Hi, We have 2 sites that will be linked by a IPSEC VPN between 2 Cisco ASAs: Site 1 8Mb ADSL Connection Cisco ASA 505 Site 2 2Mb SDSL Connection Cisco ASA 505 Basically, both sites need access to a service at the end of another IPSEC VPN, Site 3, which I plan to terminate at Site 2. This is due to the way the service is sold - it's billed per gateway. So if both Site 1 and Site 2 had their own VPN connection to Site 3, it would cost us twice as much... Anyway, my idea is to have all traffic from Site 1 destined for Site 3 to go via the VPN between Site 1 and Site 2. The end result being all traffic that hits Site 3 has come via Site 2. I understand this is known as hairpinning but I'm struggling to find a great deal of information on how this is setup. So, firstly, can anyone confirm that what I'm trying to achieve is possible and, secondly, can anyone point me in the direction of an example of such a configuration? Many Thanks.

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  • Is there a quick way to create a Windows shortcut to a file without it validating the path?

    - by Alistair McMillan
    Trying to create a shortcut for someone else. It needs to point to files on one of their mapped drives. Instead of waiting for them to be available and create the shortcut on their PC, I was hoping to just create the shortcut on my PC and then transfer it over to their PC. However Windows tries to validate the path as you create the shortcut and since I don't have access to the same files it is throwing up an error and won't create the shortcut. Is there a way to create a shortcut without the path being validated?

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  • Android device - C++ OpenGL 2: eglCreateWindowSurface invalid

    - by ThreaderSlash
    I am trying to debug and run OGLES on Native C++ in my Android device in order to implement a native 3D game for mobile smart phones. The point is that I got an error and see no reason for that. Here is the line from the code that the debugger complains: mSurface = eglCreateWindowSurface(mDisplay, lConfig, mApplication->window, NULL); And this is the error message: Invalid arguments ' Candidates are: void * eglCreateWindowSurface(void *, void *, unsigned long int, const int *) ' --x-- Here is the declaration: android_app* mApplication; EGLDisplay mDisplay; EGLint lFormat, lNumConfigs, lErrorResult; EGLConfig lConfig; // Defines display requirements. 16bits mode here. const EGLint lAttributes[] = { EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT, EGL_BLUE_SIZE, 5, EGL_GREEN_SIZE, 6, EGL_RED_SIZE, 5, EGL_SURFACE_TYPE, EGL_WINDOW_BIT, EGL_RENDER_BUFFER, EGL_BACK_BUFFER, EGL_NONE }; // Retrieves a display connection and initializes it. packt_Log_debug("Connecting to the display."); mDisplay = eglGetDisplay(EGL_DEFAULT_DISPLAY); if (mDisplay == EGL_NO_DISPLAY) goto ERROR; if (!eglInitialize(mDisplay, NULL, NULL)) goto ERROR; // Selects the first OpenGL configuration found. packt_Log_debug("Selecting a display config."); if(!eglChooseConfig(mDisplay, lAttributes, &lConfig, 1, &lNumConfigs) || (lNumConfigs <= 0)) goto ERROR; // Reconfigures the Android window with the EGL format. packt_Log_debug("Configuring window format."); if (!eglGetConfigAttrib(mDisplay, lConfig, EGL_NATIVE_VISUAL_ID, &lFormat)) goto ERROR; ANativeWindow_setBuffersGeometry(mApplication->window, 0, 0, lFormat); // Creates the display surface. packt_Log_debug("Initializing the display."); mSurface = eglCreateWindowSurface(mDisplay, lConfig, mApplication->window, NULL); --x-- Hope someone here can shed some light on it.

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  • Email not working on testing site in Plesk before DNS switch

    - by Dilip Rajkumar
    I have to test my website before my DNS is swtiched to the new server. My New server is having Plesk. I changed my hosts file to point to the new server and I tested the site. My Site is working fine. However, When I try to register I have 2 emails sent one to the user and one to the admin. Admin email id is same as the server name for example my site name is test.com the admin email is [email protected]. So email is not sent to the admin. I know the email is not sent because the Plesk his searching its own dns instead of Global public DNS. Do any one know how to make my site see public DNS on sending email in Plesk. If I set Goole Public DNS 8.8.8.8 for MS record will it work.. Please guide me. Thanks in advance..

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  • Windows 2008 R2: can't extend C drive, mystery partitions

    - by wfaulk
    I have a Windows 2008 R2 server running under VMware ESX 4.0.0. I have reallocated disk space to it in order to extend the C drive, but Disk Management has "Extend Volume" greyed out. DISKPART shows more partitions than Disk Management shows, including one after the volume I'm trying to extend, which would explain why Disk Management isn't allowing the extension. Disk Management shows: System Reserved / 100MB NTFS / Healthy (System) (C:) / 39.39 GB NTFS / Healthy (Boot, Page File, Crash Dump) 10.00 GB / Unallocated DISKPART shows: Partition 1 Dynamic Data 992 KB 31 KB Partition 2 Dynamic Data 100 MB 1024 KB Partition 3 Dynamic Data 39 GB 101 MB Partition 4 Dynamic Data 1024 KB 39 GB My question at this point is: what the heck are partitions 1 and 4, where did they come from, why doesn't Disk Management show them, and, most importantly, can I delete partition 4 in order to extend partition 3?

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  • dns update frequency

    - by Roderik
    I was looking after the frequency of dns updates, since I had to change the location fo the vps that hosts the domain contents. What I ussualy read is that it takes up to 72 hours to get these changes propagated, sometimes this can be sooner based on your location. I changed the nameservers for the domain vasco-da-gama.nl about a week ago. When I ping the domain name from different locations it still points the old vps (which does not exist anymore). I was wondering if its normal that it can take this long for the change to point my new vps? If I might have done something wrong here, where should I look for it (it looks all ok, when I check it). If it is reachable from your location (if so, its probably a matter of time it will propagate to my location).

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  • MX Record for SubDomains

    - by Steve Sloka
    I want to be able to send email to any subdomain I like and not have to configure A records and MX records for each subdomain. Ideally I could send an email to [email protected] and [email protected] and not have to configure anything other than my original domain.com. My current setup: I have a domain (domain.com) and want to have multiple subdomains. (a.domain.com, b.domain.com, c.domain.com, etc). I have an MX record setup to point to domain.com and all email works fine for that domain. I have NOT setup A records for all the subdomains (and really don't want to).

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  • Change Groupwise 7 User Password from NetWare Server Console

    - by Scott Wolf
    I have a Groupwise 7 server in place that we use for testing purposes. The previous administrator didn't bother to make a note of any of the account passwords on the machine. I have access to the Server Console...but I can't login via ConsoleOne or anything like that. Is there a command line utility that I can run from the Server Console to reset a Groupwise user password? I just need to have one account up and running for testing. If there's a CLI utility I can use to be able to create a new account, that would work just as well. Any help would be greatly appreciated...I'm kinda stuck at this point.

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  • What is a good OS to mess around with Xen Dom0?

    - by earlz
    Hello, I'd like to experiment some with Xen. My problem is I do not know which OS to try to install it with. I use OpenBSD, but it can not run as Dom0 or DomU at this point. I use Arch Linux on my website's VPS, so I know it and like it. The support for Xen just doesn't seem to be there though. Can anyone suggest a nice (preferably lightweight, so not SUSE and such) Linux distro or *BSD to mess around with Xen in a non-production environment?

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  • Thoughts on ODTUG Kscope12

    - by thatjeffsmith
    The rodeo rocked! This wasn’t my first rodeo, and it wasn’t my first Kscope, but it was probably my favorite one. What is Kscope? It’s the annual conference for the Oracle Development Tools User Group. 1,000+ attendees from 20+ countries with an average Jeff Klout score of 65. I just made that metric and score up, but this conference attracts the best and brightest in the Oracle database space. I’m not just talking about the speakers either. The attendees are all top notch. They actively participate in sessions, make an effort to get to know their fellow conference mates, and often turn into volunteers and speakers. Developers that enjoy unit testing, understand the importance of modeling your data, and are eager to understand the Oracle CBO – these are traits that describe the ‘average’ ODTUG developer. 2012′s event was held in San Antonio. Yes, it was very hot. But this might have been the nicest Marriott property I’ve ever visited, and I’ve stayed at some nice ones in Hawaii and St. Thomas. They had free WiFi everywhere – the rooms, the Conference Center, the lobby, bars, everywhere. And it worked. The after hours events were very fun. I embarrassed myself several times, but that’s OK. The rodeo was an awesome event and the Thirsty Games experience was something I hope does not make it onto YouTube or Facebook — talking to you Chet Justice. I finally got to meet and spend some time with some folks I’ve always wanted to get to know better, @timothyjgorman, @alexgorbachev, @lj_dobson, @dschleis, @kentGraziano, @chriscmuir, @GaloBalda, @patch72, and many, many more! I even made some new friends thanks to the Mentor program and @carol_finn. 2013′s event will be in New Orleans. If you haven’t joined ODTUG or haven’t made it to Kscope, go ahead and mark your calendars. I had 3 presentations this year. Sunday’s was not a good performance, and I want to apologize to anyone who was there and was hoping for more. My Tips and Debugging sessions on Monday and Tuesday were more to my liking, and I enjoyed them as a presenter. I hope you enjoyed them as an attendee. I understand that my slidedecks were corrupted on the ODTUG site, and I’m working with the coordinator now to get those fixed ASAP. Apparently the 2 most well-received Tips was the /*CSV*/ formatting hint and recalling your previous SQL history via the keyboard. I’ll be doing a follow-up webinar with ODTUG in a few weeks for those members that weren’t able to see my Tips and Debugger sessions in San Antonio. I’ll be sure to post details on that here when I have the details. My next scheduled conference is Oracle Open World, and I may have a couple of shows after that to round out 2012.

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  • Windows 7 offline files - work temporarily offline even if network connection works

    - by Robert
    Sometimes I am connected via VPN to a network containing the server where files are stored which are cached by Windows offline files feature. Sometimes the connection works good and working this way is not a problem - on other times working is quite a pain because of high latency when working with the files in the Windows explorer. Is there an interactive way how a user (with admin permissions) can temporary suspend online usage of offline files? I already activated the "Transparent caching" group policy feature (Computer Configuration Policies Administrative Templates Networks Offline Files) with a network latency of 200msec but from my experience even if I get ping times to the file server of less than 40msec online usage is quite tenacious. Setting low latency times at this point causes the offline files often to toggle which makes problems with some applications working with several files and requires them to be consistent (like SVN client).

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  • Proper management of PGPool II

    - by Cathy
    Currently I have a site, with one Postgres database server. It is just for a select number of users (less than ten) but it needs the maximum uptime possible. I would like some kind of automatic failover for the database. So I was thinking something like: one server running PGPool II, one running Postgres as master, one running Postgres as slave. But then, if wherever PGPool is running suddenly loses power (or dies, or whatever), there's a single point of failure and the whole thing goes down. Is there a solution, assuming that outsourcing this to someone else isn't possible?

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  • Getting mybrother MFC-J825DW working as a network scanner

    - by AntonChanning
    I've been attempting to set up my new brother multi-function device to work as a printer and scanner using the following steps. It is connected to the network as a LAN device, not directly connected to my ubuntu machine. Downloaded the lpr driver and cupswrapper driver from Brother support. (Select the deb packages, not the rpms). Followed the instructions to install the lpr driver. Followed the instructions to install the cupswrapper driver. After this point I was able to successfully perform a test print, so the printer part is working. So far I haven't had much luck getting the scanner working. This is what I've tried: Downloaded the brscan4 and scan-key-tool deb packages from brother support. Followed the instructions for installing the scanner driver for network. Followed the instructions for installing scan-key-tool. However when I tried to scan it detects no scanner. I then tried the solution offered in this answer to a question based on a similar brother printer, but no luck. I must have made a mistake somewhere along the line. Does anyone have any ideas what I can try to find out what? Or should I uninstall everything and start again from the beginning?

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  • Wireless shows up as disabled, how can I get it working?

    - by Lazer
    $ sudo iwconfig lo no wireless extensions. eth0 no wireless extensions. wlan0 IEEE 802.11bg ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=0 dBm Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:off pan0 no wireless extensions. $ This is what pops up when I click the two computers icon What should I do to get Wifi working on this machine? $ sudo ifconfig wlan0 up SIOCSIFFLAGS: No such file or directory $ $ lspci | tail 00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 03) 00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 03) 00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 03) 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93) 00:1f.0 ISA bridge: Intel Corporation ICH9M LPC Interface Controller (rev 03) 00:1f.2 SATA controller: Intel Corporation ICH9M/M-E SATA AHCI Controller (rev 03) 00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 03) 01:00.0 VGA compatible controller: ATI Technologies Inc M92 LP [Mobility Radeon HD 4300 Series] 09:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8040 PCI-E Fast Ethernet Controller (rev 13) 0c:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g (rev 01) $

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  • Releasing an open source project without getting embarrassed

    - by Hopeful
    I've been working by myself on a fairly large open source project for quite a while and it's nearing the point where I'd like to release it. However, I'm self-taught and I don't really know anyone who could adequately review my project. A few years ago, I had released a small bit of code which pretty much got ripped apart (in a critical sense) on the forum where I released it. Even though the code worked, the criticism was accurate but brutal. It prompted me to begin searching for best practices for everything and in the end I feel that it made me a much better developer. I've gone over everything in my project so many times trying to make it perfect that I've lost count. I believe in my project and think it has the potential to help a lot of people and I feel like I've done some cool things in interesting ways with it. Still, because I'm self-taught, I can't help but wonder what gaps exist in my self-education. The way my code was ripped apart last time isn't something I'd like to repeat. I think my two biggest fears with releasing my project that I've poured countless hours into are being absolutely embarrassed because I missed some patently obvious things because of my self-education or, worse, releasing it to the sound of crickets. Is there anyone who has been in a similar situation? I'm not afraid of constructive criticism, so long as it is constructive and not just a rant on how I screwed up. I know there is a code review site on StackExchange, but it's not really set up for large projects and I didn't feel like the community there is large enough yet to get good feedback if I were to post parts of my project piecemeal (I tried with one file). What can I do to give my project at least some measure of success without getting embarrassed or devestated in the process?

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  • 'Binary XML' for game data?

    - by bluescrn
    I'm working on a level editing tool that saves its data as XML. This is ideal during development, as it's painless to make small changes to the data format, and it works nicely with tree-like data. The downside, though, is that the XML files are rather bloated, mostly due to duplication of tag and attribute names. Also due to numeric data taking significantly more space than using native datatypes. A small level could easily end up as 1Mb+. I want to get these sizes down significantly, especially if the system is to be used for a game on the iPhone or other devices with relatively limited memory. The optimal solution, for memory and performance, would be to convert the XML to a binary level format. But I don't want to do this. I want to keep the format fairly flexible. XML makes it very easy to add new attributes to objects, and give them a default value if an old version of the data is loaded. So I want to keep with the hierarchy of nodes, with attributes as name-value pairs. But I need to store this in a more compact format - to remove the massive duplication of tag/attribute names. Maybe also to give attributes native types, so, for example floating-point data is stored as 4 bytes per float, not as a text string. Google/Wikipedia reveal that 'binary XML' is hardly a new problem - it's been solved a number of times already. Has anyone here got experience with any of the existing systems/standards? - are any ideal for games use - with a free, lightweight and cross-platform parser/loader library (C/C++) available? Or should I reinvent this wheel myself? Or am I better off forgetting the ideal, and just compressing my raw .xml data (it should pack well with zip-like compression), and just taking the memory/performance hit on-load?

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  • Billboarding restricted to an axis (cylindrical)

    - by user8709
    I have succesfully created a GLSL shader for a billboarding effect. I want to tweak this to restrict the billboarding to an arbitrary axis, i.e. a billboarded quad only rotates itself about the y-axis. I use the y-axis as an example, but essentially I would like this to be an arbitrary axis. Can anyone show me how to modify my existing shader below, or if I need to start from scratch, point me towards some resources that could be helpful? precision mediump float; uniform mat4 u_modelViewProjectionMat; uniform mat4 u_modelMat; uniform mat4 u_viewTransposeMat; uniform vec3 u_axis; // <------------ !!! the arbitrary axis to restrict rotation around attribute vec3 a_position0; attribute vec2 a_texCoord0; varying vec2 v_texCoord0; void main() { vec3 pos = (a_position0.x * u_viewTransposeMat[0] + a_position0.y * u_viewTransposeMat[1]).xyz; vec4 position = vec4(pos, 1.0); v_texCoord0 = a_texCoord0; gl_Position = u_modelViewProjectionMat * position; }

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  • SQL Server Performance & Latching

    - by Colin
    I have a SQL server 2000 instance which runs several concurrent select statements on a group of 4 or 5 tables. Often the performance of the server during these queries becomes extremely diminished. The querys can take up to 10x as long as other runs of the same query, and it gets to the point where simple operations like getting the table list in object explorer or running sp_who can take several minutes. I've done my best to identify the cause of these issues, and the only performance metric which I've found to be off base is Average Latch Wait time. I've read that over 1 second wait time is bad, and mine ranges anywhere from 20 to 75 seconds under heavy use. So my question is, what could be the issue? Shouldn't SQL be able to handle multiple selects on a single table without losing so much performance? Can anyone suggest somewhere to go from here to investigate this problem? Thanks for the help.

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