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• How to run a DHCP service on Windows 7 Home

  - by Joshua Lim

  I'm trying to setup a DHCP server on Windows 7 Home, tried using a couple of freeware which I found on the Internet but none seemed to work. What I did: On the Windows 7 machine which I install the DHCP Server with the range 192.168.1.12-192.168.1.256. I set the Gigabit Ethernet adapter to a static IP address of 192.168.1.11 and subnet mask of 255.255.255.0. When I did an IP config, it showed. Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Broadcom NetLink (TM) Gigabit Ethernet Physical Address. . . . . . . . . : 8C-73-6E-75-A7-56 DHCP Enabled. . . . . . . . . . . : No Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::196d:b6bb:8f93:2555%12(Preferred) IPv4 Address. . . . . . . . . . . : 192.168.1.11(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1 fec0:0:0:ffff::2%1 fec0:0:0:ffff::3%1 NetBIOS over Tcpip. . . . . . . . : Enabled I connected another Window 7 machine to the "DHCP server" using a cross cable and set network adapter on that machine to automatically detect IP address. The client fails to acquire the correct IP address from the DHCP server and showed the autoconfigured IPv4 address instead. Here's the information returned by config /all on the client machine. Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : Description . . . . . . . . . . . : Atheros AR8152/8158 PCI-E Fast Ethernet Controller (NDIS 6.20) Physical Address. . . . . . . . . : 54-04-A6-40-96-4B DHCP Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes Link-local IPv6 Address . . . . . : fe80::4885:4082:5572:5a85%12(Preferred) Autoconfiguration IPv4 Address. . : 169.254.90.133(Preferred) Subnet Mask . . . . . . . . . . . : 255.255.0.0 Default Gateway . . . . . . . . . : DHCPv6 IAID . . . . . . . . . . . : 341050534 DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-17-54-78-12-00-08-CA-46-4C-5A DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1 fec0:0:0:ffff::2%1 fec0:0:0:ffff::3%1 NetBIOS over Tcpip. . . . . . . . : Enabled DHCP client are running on both machines. I've tried many times but failed. Googling also returned no useful information for my scenario. Have I missed out any step? Thanks.

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• How to configure networking on an appliance such that it can plug and play on any corporate network?

  - by Joshua Lim

  I had a chance to configure a Moxa NPort device server appliance on my client's network, it was very easy to do so, done in just 2 minutes. Here's what I did:- The Moxa device server had a preset IP address of 192.168.127.254 and subnet mask 255.255.255.0 - http://www.moxa.com/doc/manual/nport/5400/NPort_5400_Series_Users_Manual_v4.pdf Moxa provides a Windows software which I used to "scan" for the device server. It worked like magic! The software returns a list of device servers found. Each device server is identified by MAC address, and by selecting the device server using the software, I can reset the default IP address and subnet mask of that device server! In comparison, during an earlier project, I spent 2 hours trying to get KVM to work for a Windows 7 embedded appliance I'm trying to install in my client's network - http://superuser.com/questions/380305/how-to-configure-windows-7-professional-appliance-pc-on-my-clients-network-usin Prior to that, I have already tried pre-configuring the IP address and subnet mask to the one which my client provided, yet the appliance still can't connect to the client's network! I've also tried cross cable, didn't work either. After KVM worked, I discovered that the network settings were "lost" after I plug the machine into the client's network. Now my question is what can I do to setup my Windows 7 embedded appliance so that it can connect to any network like that the Moxa device server? I tried experimenting this on my network using a Windows machine configured to an IP address of 192.168.127.254 and subnet mask 255.255.255.0, but it doesn't connect to my network that uses 192.168.0.*. :( EDIT: I would like to point out that the Moxa Windows configuration software seems to be able to connect to any Moxa device connected to the network even if it is on a different subnet, as long as the network adapter shows "connected". This is important because the Moxa device has no VGSM port or interface to configure the IP address.

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• How to copy a cell's formatting using a formula?

  - by Alvin Lim

  For example, cell A1 contains the text "Hello World" which is in bold. In cell A2, I use the formula =A1. Therefore cell A2 now also contains "Hello World", but it is not in bold. How can I modify the formula to also copy the formatting (in this case, bold) of A1? A more complex example is strikethrough properties, i.e. A1 contains "Orange/Red". How do I show the same content in cell A2 dynamically, so that any changes made in A1 will update A2 as well?

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• How to reinstall Windows 7 Embedded?

  - by Joshua Lim

  I need to reinstall Windows 7 Embedded on my server but I'm not able to do so despite repeated tries. I tried booting up the server with the Windows Embedded 7 Setup ISO attached (using IPMI) and I've also tried running setup.exe in the CDROM after Windows has booted up. Both methods fail. In the first case, the server simply reboots by itself after I selected "IBW" button. In the second case, the installer returns some files missing while installing. I'm sure my Windows Embedded 7 Setup ISO is correct, because earlier on, I used IBW on the same ISO to install Windows Embedded 7 onto the server. Of course, the C drive has empty when I first installed. What should I do? I read that the normal Windows 7 (not embedded version) installer allows you to reformat the C drive before re installing. There does not appear to be such an option for Windows embedded. Appreciate any tip. Thanks.

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• How to Setting up Amazon EC2 with own OS and DB ?

  - by Spencer Lim

  i got my own version of OS and DB which are window server 2008 Hyper-V R2 and Sql server R2 2008 both in enterprise version may i know how to configure it up and running ? with amazon EC2, what other is a must combination to make it run ? also how could i install the operating system and DNS ? i never doing server before, but i just need something like VPS to support my development and testing. Amazon Ec2 seem the best and cheapest service due to only $1 per hour. Appreciate if Any brief guide provided, Thx =D

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• Configure a Windows PC as network appliance w/o monitor, keyboard and mouse

  - by Joshua Lim

  I intend to use a small form factor PC with Windows 7 Professional installed as a network appliance attached directly to my customer's LAN without connecting a monitor, keyboard or mouse. How should I configure the networking for my PC so that I can access it via say my laptop? I figure that I can do it 2 ways. Attach my laptop to the PC using a crossover cable? Connect via RDP and configure networking. Configure an IP address on the PC before I deliver it to the customer place. At the customer's place, attach the PC to LAN and connect to the IP address which I previously configured from my laptop or from one of the customer's workstations. I know the first way is doable, but is the second way possible? I'm sorry if this question sounds ridiculous - I am Delphi programmer but a novice on networking. Finally, if possible, I hope to make the configuration process web based as I wouldn't like to reveal the fact that I am using Win7 Pro for the network appliance!

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• HDD not detected whenever first power on (detected at BIOS level)

  - by Alvin Lim

  I am using Asus P8H61-M LX Motherboard with latest version of BIOS: 4401 One SATA-3 Western Digital Black Series 1.5TB is attached to SATA port 0 A Samsung 22x DVDRW SATA drive attached to SATA Port 1. ps/2 Logitech mouse and keyboard. CPU is i3 with DDR3 8Gb RAM. no other devices are installed. My problem is that when I turn on the computer, the WD HDD is not detected. ie cannot be booted. I have to press ctrl+alt+del in order to get it detected. I'd used the WD data lifeguard software to scan the HDD, the smart status is OK, the surface scan does not show any error at all. Where did I do wrong? Any advice is greatly appreciated.

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• Getting 403 on apache with php on fedora 17

  - by Js Lim

  I put the projects on ~/public_html/project and create a soft-link in /var/www/html/project which point to ~/public_html/project. my /etc/httpd/conf/httpd.conf is shown below ServerRoot "/etc/httpd" PidFile run/httpd.pid Timeout 60 KeepAlive Off MaxKeepAliveRequests 100 KeepAliveTimeout 5 <IfModule prefork.c> StartServers 8 MinSpareServers 5 MaxSpareServers 20 ServerLimit 256 MaxClients 256 MaxRequestsPerChild 4000 </IfModule> <IfModule worker.c> StartServers 4 MaxClients 300 MinSpareThreads 25 MaxSpareThreads 75 ThreadsPerChild 25 MaxRequestsPerChild 0 </IfModule> Listen 80 Include conf.d/*.conf User apache Group apache ServerAdmin root@localhost UseCanonicalName Off DocumentRoot "/var/www/html" <Directory /> Options FollowSymLinks AllowOverride None </Directory> <Directory "/var/www/html"> Options Indexes FollowSymLinks AllowOverride All Order allow,deny Allow from all </Directory> # Allow SVN access from public <Directory "/var/www/svn"> Options Indexes FollowSymLinks AllowOverride None Order allow,deny Allow from all </Directory> <IfModule mod_userdir.c> UserDir disabled # UserDir public_html </IfModule> DirectoryIndex index.html index.html.var AccessFileName .htaccess <FilesMatch "^\.ht"> Order allow,deny Deny from all Satisfy All </FilesMatch> TypesConfig /etc/mime.types DefaultType text/plain <IfModule mod_mime_magic.c> # MIMEMagicFile /usr/share/magic.mime MIMEMagicFile conf/magic </IfModule> HostnameLookups Off <IfModule mod_dav_fs.c> # Location of the WebDAV lock database. DAVLockDB /var/lib/dav/lockdb </IfModule> ScriptAlias /cgi-bin/ "/var/www/cgi-bin/" <Directory "/var/www/cgi-bin"> AllowOverride None Options None Order allow,deny Allow from all </Directory> in /var/log/httpd/error_log [error] [client 127.0.0.1] Symbolic link not allowed or link target not accessible: /var/www/html/project [error] [client 127.0.0.1] File does not exist: /var/www/html/favicon.ico in browser Forbidden You don't have permission to access /project on this server. I get this error. ls -l result: drwxrwxrwx 3 js js 4.0K Nov 1 14:43 public_html/ for project drwxr-xr-x. 6 js js 4.0K Nov 1 16:38 public_html/project/ I cannot figure out the problem.

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• Seeking htaccess help: Converting multiple subdomains (both http and https) to www.domain.com using .htaccess

  - by Joshua Dorkin

  I've been trying to get an answer to this question on other forums (the folks at SuperUser thought this was the place I needed to post) and via my connections, but I haven't gotten very far. Hopefully you guys can help me find an answer: I've got a dozen old subdomains that have been indexed by Google. These have been indexed as both http AND https. I've managed to redirect all the subdomains properly, provided they are not https, but can't get any of the https subdomains to property redirect. Here's the code I'm using: RewriteCond %{HTTP_HOST} ^subdomain1.mysite.com$ [NC] RewriteRule ^(.*)$ http://www.mysite.com/$1 [R=301,L] RewriteCond %{HTTP_HOST} ^subdomain2.mysite.com$ [NC] RewriteRule ^(.*)$ http://www.mysite.com/$1 [R=301,L] RewriteCond %{HTTP_HOST} ^subdomain3.mysite.com$ [NC] RewriteRule ^(.*)$ http://www.mysite.com/$1 [R=301,L] This works great until someone goes to: https://subdomain2.mysite.com$ which is not redirected back to http://www.mysite.com$ How can I get this to work? Additionally, I'm guessing there is an easier way to make it happen than setting up a dozen pairs of Rewrite conditions/rewrite rule? Is there any way to do this in just a few lines, including one where I list all the subdomains? I'd actually also like to redirect everything on https://www.mysite.com$ to http://www.mysite.com$ except for 3 folders These are mysite.com/secure, mysite.com/store, mysite.com/user -- is there any good way to add this to the htaccess file? Any suggestions would be great! Thank you in advance for any help.

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• Wireless internet is connected to an open network but has no internet

  - by Joshua Reeder

  I just installed Ubuntu on my laptop yesterday and it connected to the wireless fine. Then I took it to school, put it on their wired connection, downloaded some stuff, and now the wireless doesn't work. At first it would detect networks, but not connect. I restarted it and now it can connect, but it acts like it doesn't have internet in the browser. Wired connection still works fine on it. I know it isn't the network because my ipad is working on the wireless connection fine. I found another solution on here switching the security settings for the wireless, but this is the apartment's wireless so they have it open, and I won't be able to mess with it at all. Here is lspci output: 00:00.0 Host bridge: Intel Corporation Core Processor DMI (rev 11) 00:03.0 PCI bridge: Intel Corporation Core Processor PCI Express Root Port 1 (rev 11) 00:08.0 System peripheral: Intel Corporation Core Processor System Management Registers (rev 11) 00:08.1 System peripheral: Intel Corporation Core Processor Semaphore and Scratchpad Registers (rev 11) 00:08.2 System peripheral: Intel Corporation Core Processor System Control and Status Registers (rev 11) 00:08.3 System peripheral: Intel Corporation Core Processor Miscellaneous Registers (rev 11) 00:10.0 System peripheral: Intel Corporation Core Processor QPI Link (rev 11) 00:10.1 System peripheral: Intel Corporation Core Processor QPI Routing and Protocol Registers (rev 11) 00:16.0 Communication controller: Intel Corporation 5 Series/3400 Series Chipset HECI Controller (rev 06) 00:1a.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05) 00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05) 00:1c.0 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 (rev 05) 00:1c.1 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 2 (rev 05) 00:1c.2 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 3 (rev 05) 00:1c.3 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 4 (rev 05) 00:1c.4 PCI bridge: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 5 (rev 05) 00:1d.0 USB controller: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller (rev 05) 00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev a5) 00:1f.0 ISA bridge: Intel Corporation Mobile 5 Series Chipset LPC Interface Controller (rev 05) 00:1f.2 SATA controller: Intel Corporation 5 Series/3400 Series Chipset 4 port SATA AHCI Controller (rev 05) 00:1f.3 SMBus: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller (rev 05) 01:00.0 VGA compatible controller: NVIDIA Corporation GT218 [GeForce 310M] (rev a2) 01:00.1 Audio device: NVIDIA Corporation High Definition Audio Controller (rev a1) 02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05) 07:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8191SEvB Wireless LAN Controller (rev 10) 16:00.0 System peripheral: JMicron Technology Corp. SD/MMC Host Controller (rev 20) 16:00.2 SD Host controller: JMicron Technology Corp. Standard SD Host Controller (rev 20) 16:00.3 System peripheral: JMicron Technology Corp. MS Host Controller (rev 20) 16:00.4 System peripheral: JMicron Technology Corp. xD Host Controller (rev 20) ff:00.0 Host bridge: Intel Corporation Core Processor QuickPath Architecture Generic Non-Core Registers (rev 04) ff:00.1 Host bridge: Intel Corporation Core Processor QuickPath Architecture System Address Decoder (rev 04) ff:02.0 Host bridge: Intel Corporation Core Processor QPI Link 0 (rev 04) ff:02.1 Host bridge: Intel Corporation Core Processor QPI Physical 0 (rev 04) ff:03.0 Host bridge: Intel Corporation Core Processor Integrated Memory Controller (rev 04) ff:03.1 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Target Address Decoder (rev 04) ff:03.4 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Test Registers (rev 04) ff:04.0 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 0 Control Registers (rev 04) ff:04.1 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 0 Address Registers (rev 04) ff:04.2 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 0 Rank Registers (rev 04) ff:04.3 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 0 Thermal Control Registers (rev 04) ff:05.0 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 1 Control Registers (rev 04) ff:05.1 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 1 Address Registers (rev 04) ff:05.2 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 1 Rank Registers (rev 04) ff:05.3 Host bridge: Intel Corporation Core Processor Integrated Memory Controller Channel 1 Thermal Control Registers (rev 04) Update: I re-installed Ubuntu 12.04 (I assumed I messed something up while toying with it) but it did not solve the problem. Eventually, I got it to work with my school's wireless internet (the default network settings were wrong), but the internet still doesn't work on my apartment's wifi (it has no security on it).

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• Which Python Framework and CMS coming from PHP - Codeigniter+ExpresionEngine?

  - by Joshua Fricke

  We are currently developing most of our applications in PHP using CodeIgniter (CI) and ExpressionEngine (EE) and are looking to try our hands at Python. So we are looking for a Framework and ideally a CMS that work well together like the CI+EE combo does. Have done a bit of research, it looks like these are some good suggestions (though we are not limiting to these): Frameworks - http://wiki.python.org/moin/WebFrameworks Django Web2py CMS - http://wiki.python.org/moin/ContentManagementSystems Below picked because they are developed with a Framework (my only frame of reference using CI+EE) Merengue Mezzanine Django CMS Input would be great in helping us decide.

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• What is a practical way to debug Rails?

  - by Joshua Fox

  I get the impression that in practice, debuggers are rarely used for Rails applications. (Likewise for other Ruby apps, as well as Python.) We can compare this to the usual practice for Java or VisualStudio programmers--they use an interactive debugger in a graphical IDE. How do people debug Rails applications in practice? I am aware of the variety of debuggers, so no need to mention those, but do serious Rails programmers work without them? If so, why do you choose to do it this way? It seems to me that console printing has its limits when debugging complex logic.

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• Oracle Sun Solaris 11.1 Completes EAL4+ Common Criteria Evaluation

  - by Joshua Brickman-Oracle

  Oracle is pleased to announce that the Oracle Solaris 11.1 operating system has achieved a Common Criteria certification at Evaluation Assurance Level (EAL) 4 augmented by Flaw Remediation under the Canadian Communications Security Establishment’s (CSEC) Canadian Common Criteria  Scheme (CCCS).  EAL4 is the highest level achievable for commercial software, and is the highest level mutually recognized by 26 countries under the current Common Criteria Recognition Arrangement (CCRA).  Oracle Solaris 11.1 is conformant to the BSI Operating System Protection Profile v2.0 with the following four extended packages. (1) Advanced Management, (2) Extended Identification and Authentication, (3) Labeled Security, and (4) Virtualization. Common Criteria is an international framework (ISO/IEC 15408) which defines a common approach for evaluating security features and capabilities of Information Technology security products. A certified product is one that a recognized Certification Body asserts as having been evaluated by a qualified, accredited, and independent evaluation laboratory competent in the field of IT security evaluation to the requirements of the Common Criteria and Common Methodology for Information Technology Security Evaluation. Oracle Solaris is the industry’s most widely deployed UNIXtm operating system, delivers mission critical cloud infrastructure with built-in virtualization, simplified software lifecycle management, cloud scale data management, and advanced protection for public, private, and hybrid cloud environments. It provides a suite of technologies and applications that create an operating system with optimal performance. Oracle Solaris 11.1 includes key technologies such as Trusted Extensions, the Oracle Solaris Cryptographic Framework, Zones, the ZFS File System, Image Packaging System (IPS), and multiple boot environments. The Oracle Solaris 11.1 Certification Report and Security Target can be viewed on the Communications Security Establishment Canada (CSEC) site and on the Common Criteria Portal. For more information on Oracle’s participation in the Common Criteria program, please visit the main Common Criteria information page here: (http://www.oracle.com/technetwork/topics/security/oracle-common-criteria-095703.html) For a complete list of Oracle products with Common Criteria certifications and FIPS 140-2 validations, please see the Security Evaluations website here: (http://www.oracle.com/technetwork/topics/security/security-evaluations-099357.html).

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• How do I fix Google Earth 6.2.2 theme and fonts in 12.04?

  - by Joshua Robison

  Here is the problem. I would like to know how to get Google Earth using better fonts with anti-aliasing for English and Japanese. Don't know what these fonts are but they are hideous and completely different from my system fonts or Libre Office fonts or even QT apps like VLC and MiniTube. I'm using 12.04 LTS 32bit and almost had complete success with the 11.10 fix posted here Google Earth and Skype theme the theme and fonts will show up correctly for about 5 seconds before the program crashes.

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• Are 'edited by' inline comments the norm in shops which use revision control?

  - by Joshua Smith

  The senior dev in our shop insists that whenever code is modified, the programmer responsible should add an inline comment stating what he did. These comments usually look like // YYYY-MM-DD <User ID> Added this IF block per bug 1234. We use TFS for revision control, and it seems to me that comments of this sort are much more appropriate as check-in notes rather than inline noise. TFS even allows you to associate a check-in with one or more bugs. Some of our older, often-modified class files look like they have a comment-to-LOC ratio approaching 1:1. To my eyes, these comments make the code harder to read and add zero value. Is this a standard (or at least common) practice in other shops?

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• What is the problem git submodules are supposed to solve?

  - by Joshua Dance

  What is the problem that git submodules solve well? When should I use them? Or rather what is their use case? The only use of submodules that I have seen 'in the wild' has been when used to share code between multiple repositories. From what I have experienced, submodules do not appear to be ideally suited to this use case. You run into git update submodule woes and your history gets filled with updating submodule pointer commits. If the 'sharing code' use case is not best solved by submodules, what problems are?

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• Will my new HTML5 website decrease my Google ranking?

  - by Joshua

  Hi, I have a traditional HTML website that loads pages/sections of the site when people click on menu items. Pretty standard. Currently, I'm working on relaunching my website with a brand new HTML5 code & jquery that loads the whole thing, and just slides from one section to the next, sort of like this website: http://www.mino.pl/ My concern is that this will affect my ranking with google and websiteoutlook.com because it may seem like the website only has one page now instead of 8, making it look like I have less pageviews and making my site less relevant for search engine rankings. Are my concerns legit? If so, do you have suggestions on how to avoid it? I really like the idea of working with a page that 'slides' to different sections better than having pages load all the time. Any suggestions/thoughts would be very much appreciated. Thanks.

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• looking for a clock widget that is unaffected by the mouse

  - by Joshua Robison

  Between screenlets, cairo-dock widgets and plasma-widgets. One of them's gotta have this function; A widget that hovers above everything on the desktop but is completely unaffected by the mouse. I would use this by making a clock hover above everything and semi transparent. I also want to be able to click on windows underneath the clock. After some experimentation, the screenlets widgets do not do what I am asking. I can make them float above everything on the screen but I am not able to click on windows underneath them. I need the widget to be COMPLETELY unaffected by the mouse.

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• Successful technical communities except for open-source?

  - by Joshua Fox

  Have you ever seen a successful technical community -- e.g. user group, industry organization? Am I asking about a group of software engineers who get together F2F (or maybe online) and discuss technical and industry issues with deep zeal and interest -- a place where meaningful connections are made. Here are the only examples I have ever seen: Open source Maybe the Silicon Valley Java Users' Group Homebrew Computing Club in the '70's This sort of thing does exist in academia. Of course, there are lots of conferences and attempts at user's groups. However, almost all committed, serious software engineers, when asked about this, say "I don't have the time", which means that the organizations are not worthwhile to the best in our profession. Has anyone seen any organizations with an ongoing spirit of enthusiasm from top software engineers?

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• 2D Selective Gaussian Blur

  - by Joshua Thomas

  I am attempting to use Gaussian blur on a 2D platform game, selectively blurring specific types of platforms with different amounts. I am currently just messing around with simple test code, trying to get it to work correctly. What I need to eventually do is create three separate render targets, leave one normal, blur one slightly, and blur the last heavily, then recombine on the screen. Where I am now is I have successfully drawn into a new render target and performed the gaussian blur on it, but when I draw it back to the screen everything is purple aside from the platforms I drew to the target. This is my .fx file: #define RADIUS 7 #define KERNEL_SIZE (RADIUS * 2 + 1) //----------------------------------------------------------------------------- // Globals. //----------------------------------------------------------------------------- float weights[KERNEL_SIZE]; float2 offsets[KERNEL_SIZE]; //----------------------------------------------------------------------------- // Textures. //----------------------------------------------------------------------------- texture colorMapTexture; sampler2D colorMap = sampler_state { Texture = <colorMapTexture>; MipFilter = Linear; MinFilter = Linear; MagFilter = Linear; }; //----------------------------------------------------------------------------- // Pixel Shaders. //----------------------------------------------------------------------------- float4 PS_GaussianBlur(float2 texCoord : TEXCOORD) : COLOR0 { float4 color = float4(0.0f, 0.0f, 0.0f, 0.0f); for (int i = 0; i < KERNEL_SIZE; ++i) color += tex2D(colorMap, texCoord + offsets[i]) * weights[i]; return color; } //----------------------------------------------------------------------------- // Techniques. //----------------------------------------------------------------------------- technique GaussianBlur { pass { PixelShader = compile ps_2_0 PS_GaussianBlur(); } } This is the code I'm using for the gaussian blur: public Texture2D PerformGaussianBlur(Texture2D srcTexture, RenderTarget2D renderTarget1, RenderTarget2D renderTarget2, SpriteBatch spriteBatch) { if (effect == null) throw new InvalidOperationException("GaussianBlur.fx effect not loaded."); Texture2D outputTexture = null; Rectangle srcRect = new Rectangle(0, 0, srcTexture.Width, srcTexture.Height); Rectangle destRect1 = new Rectangle(0, 0, renderTarget1.Width, renderTarget1.Height); Rectangle destRect2 = new Rectangle(0, 0, renderTarget2.Width, renderTarget2.Height); // Perform horizontal Gaussian blur. game.GraphicsDevice.SetRenderTarget(renderTarget1); effect.CurrentTechnique = effect.Techniques["GaussianBlur"]; effect.Parameters["weights"].SetValue(kernel); effect.Parameters["colorMapTexture"].SetValue(srcTexture); effect.Parameters["offsets"].SetValue(offsetsHoriz); spriteBatch.Begin(0, BlendState.Opaque, null, null, null, effect); spriteBatch.Draw(srcTexture, destRect1, Color.White); spriteBatch.End(); // Perform vertical Gaussian blur. game.GraphicsDevice.SetRenderTarget(renderTarget2); outputTexture = (Texture2D)renderTarget1; effect.Parameters["colorMapTexture"].SetValue(outputTexture); effect.Parameters["offsets"].SetValue(offsetsVert); spriteBatch.Begin(0, BlendState.Opaque, null, null, null, effect); spriteBatch.Draw(outputTexture, destRect2, Color.White); spriteBatch.End(); // Return the Gaussian blurred texture. game.GraphicsDevice.SetRenderTarget(null); outputTexture = (Texture2D)renderTarget2; return outputTexture; } And this is the draw method affected: public void Draw(SpriteBatch spriteBatch) { device.SetRenderTarget(maxBlur); spriteBatch.Begin(); foreach (Brick brick in blueBricks) brick.Draw(spriteBatch); spriteBatch.End(); blue = gBlur.PerformGaussianBlur((Texture2D) maxBlur, helperTarget, maxBlur, spriteBatch); spriteBatch.Begin(); device.SetRenderTarget(null); foreach (Brick brick in redBricks) brick.Draw(spriteBatch); foreach (Brick brick in greenBricks) brick.Draw(spriteBatch); spriteBatch.Draw(blue, new Rectangle(0, 0, blue.Width, blue.Height), Color.White); foreach (Brick brick in purpleBricks) brick.Draw(spriteBatch); spriteBatch.End(); } I'm sorry about the massive brick of text and images(or not....new user, I tried, it said no), but I wanted to get my problem across clearly as I have been searching for an answer to this for quite a while now. As a side note, I have seen the bloom sample. Very well commented, but overly complicated since it deals in 3D; I was unable to take what I needed to learn form it. Thanks for any and all help.

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• Absolutely Nothing Apearing in "Additional Drivers"

  - by Joshua Arroyo

  OK so I just got Ubuntu the other month or so. I'm running the 11.04 version currently and trying to install drivers for a Nvidia graphics card (it's my brother's computer and he currently cannot find the number of the card right now). I read that, to install the proper drivers for gaming, I would need to go into "Additional Drivers" and choose them myself. I clicked to go into "Additional Drivers" and it searched "for available drivers", then opened the additional drivers list. Lo and Behold, there was nothing, simply the message "No proprietary drivers are in use on this system" and the Help and Close buttons. Sorry if there's some silly simple answer to all of this, I'm new to this sort of thing (used to Windows simplicity, lol) and I really don't know what to do. Help would be much appreciated. Also, I should mention that the graphics card was installed and ran fine before switching from Windows XP to Ubuntu.

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• Teaching logical/analytical thinking

  - by Joshua

  I have been trial running a club in which I teach programming for the past year and while they have progressed what they really lack is the most fundamental concept to programming, analytical thinking. As I now approach the second year of teaching to the children (aged 12 - 14) I am now realising that before I begin teaching them the syntax and how to actually program an app (or what they would rather, a game) I need to introduce them to analytical thinking first. I have already found Scratch and similar things such as Light-Bot and will most certainly be using the, to teach them how to implement their logical thinking but what I really need are some tips or articles on how to teach analytical thinking itself to children aged 12 - 14. What I'm looking for are some ideas on how to teach the kind of thinking that these kids will need in order to get them into programming, whether that be analytical, logical or critical. How and what should I teach them relating to the way their minds need to be wired when programming solutions to problems?

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• How to opendns with dynamic ip

  - by Joshua Robison

  OpenDNS is almost completely useless with a dynamic ip and most people have dynamic ip addresses. There isn't even a decent client for Linux to update your IP. There is a script you can install but it only seems to update on startup and all my child needs to do is unplug and replug the cable from the wall or router and a new ip is created totally killing the opendns service . I'm not even sure the Mac or windows ip update clients can protect from such a simple maneuver . How can I get my ip address to constantly update with opendns, is my question.

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• Auto-mount filesystems on boot fails (12.10)

  - by Joshua Pruitt

  I have a Compaq HP 8200 slim desktop running 12.10 with encrypted partitions (set up with the text-based installer). Everything's working fine, except... When I boot the computer, my /boot and /boot/efi directories refuse to mount automatically. I'm dropped to the root console, where I must enter 'mountall -v', and everything then continues on just fine. This was happening under 12.04. I've recently upgraded to 12.10, and the problem persists. Except now, in addition to /boot and /boot/efi not mounting, roughly 50% of the time /var will not be auto-mounted as well (and again, 'mountall -v' fixes allows me to boot and move on). I'm puzzled about this one. Running 'fsck' doesn't seem to do anything (the filesystems aren't damaged anyway). What can I try to solve this issue? Here's my /etc/fstab: http://paste.ubuntu.com/1338508/ Thanks in advance!!! Addendum: I have tried changing the entries in fstab from UUIDs to the actual devices, to no avail.

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• How to TDD test that objects are being added to a collection if the collection is private?

  - by Joshua Harris

  Assume that I planned to write a class that worked something like this: public class GameCharacter { private Collection<CharacterEffect> _collection; public void Add(CharacterEffect e) { ... } public void Remove(CharacterEffect e) { ... } public void Contains(CharacterEffect e) { ... } } When added an effect does something to the character and is then added to the _collection. When it is removed the effect reverts the change to the character and is removed from the _collection. It's easy to test if the effect was applied to the character, but how do I test that the effect was added to _collection? What test could I write to start constructing this class. I could write a test where Contains would return true for a certain effect being in _collection, but I can't arrange a case where that function would return true because I haven't implemented the Add method that is needed to place things in _collection. Ok, so since Contains is dependent on having Add working, then why don't I try to create Add first. Well for my first test I need to try and figure out if the effect was added to the _collection. How would I do that? The only way to see if an effect is in _collection is with the Contains function. The only way that I could think to test this would be to use a FakeCollection that Mocks the Add, Remove, and Contains of a real collection, but I don't want _collection being affected by outside sources. I don't want to add a setEffects(Collection effects) function, because I do not want the class to have that functionality. The one thing that I am thinking could work is this: public class GameCharacter<C extends Collection> { private Collection<CharacterEffect> _collection; public GameCharacter() { _collection = new C<CharacterEffect>(); } } But, that is just silly making me declare what some private data structures type is on every declaration of the character. Is there a way for me to test this without breaking TDD principles while still allowing me to keep my collection private?

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