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• Netbook performs hard shutdown without warning on low battery power

  - by Steve Kroon

  My Asus EEE netbook performs a hard shutdown when it reaches low battery power, without giving any warning - i.e. the power just goes off, without any shutdown process. I can't find anything in the syslog, and no error messages are printed before it happens. I've had this problem on previous (K)Ubuntu versions, and hoped updating to Ubuntu Precise would help resolve the issue, but it hasn't. The option in the Power application for "when power is critically low" is currently blank - the only options are a (grayed-out) hibernate and "Power off". I have re-installed indicator-power to no effect. The time remaining reported by acpi is unstable, as is the time remaining reported by gnome-power-statistics. (For example, running acpi twice in succession, I got 2h16min, and then 3h21min remaining. These sorts of jumps in the remaining time are also in the gnome-power-statistics graphs.) It might be possible to write a script to give me advance warning (as per @RanRag's comment below), but I would prefer to isolate why I don't get a critical battery notification from the system before this happens, so that I can take action as appropriate (suspend/shutdown/plug in power) when I get a notification. Some additional information on the battery: kroon@minia:~$ upower -i /org/freedesktop/UPower/devices/battery_BAT0 native-path: /sys/devices/LNXSYSTM:00/device:00/PNP0A08:00/PNP0C0A:00/power_supply/BAT0 vendor: ASUS model: 1005P power supply: yes updated: Fri Aug 17 07:31:23 2012 (9 seconds ago) has history: yes has statistics: yes battery present: yes rechargeable: yes state: charging energy: 33.966 Wh energy-empty: 0 Wh energy-full: 34.9272 Wh energy-full-design: 47.52 Wh energy-rate: 3.7692 W voltage: 12.61 V time to full: 15.3 minutes percentage: 97.248% capacity: 73.5% technology: lithium-ion History (charge): 1345181483 97.248 charging 1345181453 97.155 charging 1345181423 97.062 charging 1345181393 96.970 charging History (rate): 1345181483 3.769 charging 1345181453 3.899 charging 1345181423 4.061 charging 1345181393 4.201 charging kroon@minia:~$ cat /proc/acpi/battery/BAT0/state present: yes capacity state: ok charging state: charging present rate: 332 mA remaining capacity: 3149 mAh present voltage: 12612 mV kroon@minia:~$ cat /proc/acpi/battery/BAT0/info present: yes design capacity: 4400 mAh last full capacity: 3209 mAh battery technology: rechargeable design voltage: 10800 mV design capacity warning: 10 mAh design capacity low: 5 mAh cycle count: 0 capacity granularity 1: 44 mAh capacity granularity 2: 44 mAh model number: 1005P serial number: battery type: LION OEM info: ASUS

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• Changing frontend cache

  - by Utsav

  Our architecture consists of a front-end cache that most read only users obtain their data from directly. The front-end cache sits in front of a farm of webservers that serve pages written in PHP. We need to be able to detect certain conditions at the front-end cache level and pass those values through to the back-end via HTTP headers. For example we would like to manually tag the carrier network based on the IP address. So, for incoming traffic if the user is say coming from an IP address in the range of "41.202.192.0"/19 we would tag them as being a Orange Cameroon user by setting the appropriate HTTP request header, e.g., X-Carrier = "Orange Cameroon". Based on the setting of this header we would like to vary the cache and serve a different banner to the end user. How would you go about doing this? Keep in mind that we don't want to pollute the cache and we also don't want to create too many small cache segments. Assumptions: You can assume that the X-Carrier has already been detected in our cache. So, for the purposes of your test you can just set this value manually in your example script.

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• Swap, Swapiness and Standby: swapping starts when waking up

  - by mdo

  I'm running running Ubuntu 12.04 on a Lenovo W500 (Core2Duo T9400, 4GB Ram) Current kernel: 3.2.0-32-generic #51-Ubuntu SMP Wed Sep 26 21:33:09 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux -- but the problems exists since a couple of months, surviving quite a few software (includig kernel) updates I regularly put my machine into suspend-to-ram (S3) and when the machine comes back up Ubuntu starts to swap out processes. I was able to observe that the used swap-space starts to grow right after the box returns. See munin graphs below, the gap (obviously) shows the timeframe in STR. Needless to say that the box becomes unusable while swapping, load goes up beyond 10. What I've done so far: lowered swappiness from default (60) to 10 (via /etc/sysctl.conf: vm.swappiness=10) -- this has improved the situation much, but sometimes the problem comes back, I have not found a trigger (like memory usage) for this for now lowered swappiness to 5 -- perhaps this has brought an improvement again Before going to STR the box ran stable without (swapping) problems for hours. Today when the issue showed up again I used this script (- http://stackoverflow.com/questions/479953/how-to-find-out-which-processes-are-swapping-in-linux) to find what processes have the most used swap space. The result after the swap orgy is like that (all PIDs with more than 10M usage): Overall swap used: 2121344 kB ======================================== kB pid name ======================================== 439520 17491 java 208148 22719 firefox 136640 4337 /usr/bin/quodli 120852 5271 chrome 81832 5264 chrome 74284 17003 chrome 65368 16960 chrome 57088 3675 chrome 56184 30923 chrome 54412 11331 chrome 54264 3878 chrome 51508 18382 chrome 50088 3163 zeitgeist-fts 49772 15543 chrome 41344 15355 compiz 35040 1161 mysqld 32124 18374 chrome 30940 11339 chrome 30044 5752 chrome 28780 4235 plugin-containe 24576 31246 empathy-chat 23840 17703 chrome 22512 3207 ubuntuone-syncd 21588 1937 ntop 18336 2021 asterisk 17200 3915 chrome 13964 1935 Xorg 12036 10679 chrome 11104 30782 empathy 11056 2889 python 10932 16565 knotify4 The java instance at the top is IntelliJ. IntelliJ, Firefox and Chrome also were all used right before the box was put to STR. So my question is: can I somehow prevent these swapouts AND why do they happen? Is it perhaps related to some misidentification of idle processes? I'm not looking for resolutions like: turn off swap buy more RAM Thanks in advance!

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• How Can You Work Smarter In Life Sciences Sales?

  - by charles.knapp

  One major reason why executives keep choosing Oracle CRM On Demand and Siebel CRM is our ongoing investments that deliver comprehensive business process support, tailored "at the factory" for specific industries. For example, life sciences sales in many cases globally follows an indirect, "influence" model, where a medical clinician uses expert working knowledge to prescribe products that are sold by independent pharmacies. Smarter, presentations to clinicians can increase sales. Oracle's life sciences CRM is built for sales reps by sales reps. We worked with representatives at 15 of the top 20 pharmaceutical firms on our latest release. Oracle helps reps work smarter from planning their day to delivering samples and rapidly presenting details to busy clinicians. Watch Piers Evans, Industry Strategy Director, show what this looks like in the day of a typical pharmaceutical sales rep. By use of this code snippet, I agree to the Brightcove Publisher T and C found at https://accounts.brightcove.com/en/terms-and-conditions/. -- This script tag will cause the Brightcove Players defined above it to be created as soon as the line is read by the browser. If you wish to have the player instantiated only after the rest of the HTML is processed and the page load is complete, remove the line. -- brightcove.createExperiences();

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• What extra packages are needed by Amarok to transcode to MP3?

  - by Jon Pawley

  I'm using Amarok 2.6.0, on KDE version 4.9.3, on Kubuntu 12.04. I would like to be able to copy my music onto my MP3 player (in this case, my iPhone 3), but to transcode the tracks as I copy them over. However, when I right-click on the selected track, and choose "Copy to Collection" and select my iPhone, the option to transcode to MP3 is greyed out. What additional packages does Amarok need in order to enable the transcode to MP3 option? Thanks, Jon Oh, the "Amarok DIagnostics" output, from the Help menu gives: Amarok Diagnostics Amarok Version: 2.6.0 KDE Version: 4.9.3 Qt Version: 4.8.2 Phonon Version: 4.6.0 Phonon Backend: GStreamer (4.6.2) PulseAudio: Yes Amarok Scripts: Amarok Script Console 1.0 (stopped) Discogs 1.1b (stopped) Lyricwiki .2 (stopped) Free Music Charts 1.6.0 (stopped) Librivox.org 1.0 (stopped) Cool Streams 1.0 (stopped) BBC 1.1 (stopped) Amarok Plugins: AudioCd Collection (enabled) DAAP Collection (enabled) MTP Collection (enabled) MySQLServer Collection (enabled) MySQLe Collection (enabled) UPnP Collection (enabled) Universal Mass Storage Collection (enabled) iPod, iPad & iPhone Collection (enabled) Ampache (disabled) Jamendo (disabled) Last.fm (enabled) MP3 Music Store (disabled) MP3tunes (disabled) Magnatune Store (disabled) Podcast Directory (enabled) gpodder.net (enabled) Local Files & USB Mass Storage Backend (enabled) NFS Share Backend (enabled) SMB (Windows) Share Backend (enabled)

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• How to create a folder in SharePoint2010 root folder and set permission to it

  - by ybbest

  If you need to create a folder in SharePoint2010 root folder and set permission to it, here is piece of code that does it. In the script, I have created a folder called Temp in Logs folder under SharePoint2010 root and then I grant read/write access to the Windows group WSS_WPG and full access to the group WSS_ADMIN_WPG for that folder. $Folder=New-Item "C:\Program Files\Common Files\Microsoft Shared\Web Server Extensions\14\LOGS\temp" -Type Directory -force $acl = Get-Acl $Folder ##The following line has been commented out , if you like to break the permission inheritance from the parent floder , uncommented the code. #$acl.SetAccessRuleProtection($True, $False) $rule = New-Object System.Security.AccessControl.FileSystemAccessRule("WSS_ADMIN_WPG","FullControl", "ContainerInherit, ObjectInherit", "None", "Allow") $acl.AddAccessRule($rule) $rule = New-Object System.Security.AccessControl.FileSystemAccessRule("WSS_WPG","Modify", "ContainerInherit, ObjectInherit", "None", "Allow") $acl.AddAccessRule($rule) Set-Acl $Folder $acl References: http://technet.microsoft.com/en-us/library/ff730951.aspx http://msdn.microsoft.com/en-us/library/tbsb79h3.aspx http://blogs.technet.com/b/josebda/archive/2010/11/12/how-to-handle-ntfs-folder-permissions-security-descriptors-and-acls-in-powershell.aspx http://chrisfederico.wordpress.com/2008/02/01/setting-acl-on-a-file-or-directory-in-powershell/

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• How to publishing access DB to https SharePoint2010 site with self-signed certificate

  - by ybbest

  If you are having troubles (shown below) when you publish your access database to https SharePoint2010 site with self-signed certificate. Problem: First you are getting a warning see the screenshot below: And then getting the error message: Solution: The error “The name of the security certificate is invalid or does not match the name of the site” comes when the ‘common name’ in the certificate doesn’t match the address you provided in browser to access the site. To fix the problem , you need to use script to generate the certificate rather than using the IIS UI, this is because it will default the common name to the server name and you will have the above problem when using that certificate to a different host-name web application. You can use SelfSSl.exe (IIS 6.0 only), you have to specify common name(cn), for example as: selfssl.exe /T /N:cn=testsharepoint.com /K:1024 /V:7 /S:1 /P:443 OR you can use makecert (IIS7.0 and above) makecert -r -pe -n 'CN=my.domain.here' -b 01/01/2000 -e 01/01/2036 -eku 1.3.6.1.5.5.7.3.1 -ss my -sr localMachine -sky exchange -sp "Microsoft RSA SChannel Cryptographic Provider" -sy 12 After you have created the certificate, you then need to add that self-signed certificate to your IIS web site and to the Trusted Root Certification Authorities. (To get to there, Key-in Windows + R and Type mmc.exe and add the certifications console) I have compiled the solution from the questions I have asked in sharepointstackexchange

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• How Can You Get More Productive In Life Sciences Sales?

  - by charles.knapp

  Only half of all doctors will meet with pharmaceutical sales reps, and that percentage continues to decrease. Furthermore, when reps are granted an opportunity to share information, the average interaction is only about a minute and a half. Concurrently, call quotas continue to increase. What does this matter? Sales reps need to spend less time on traditional planning and after-call reporting, more time making calls, and make more productive use of short presentation times. Fortunately for sales reps, Oracle offers the first life sciences CRM that is designed to double sales time and halve reporting time. In particular, our new Life Sciences Edition Offline Client is designed so that you can actually turn the screen around, so that your CRM is useful for presentations and not just reporting, whether you are connected to cloud or working offline such as in restricted clinical environments. Watch Piers Evans, Industry Strategy Director, show what this looks like in the day of a typical pharmaceutical sales representative. By use of this code snippet, I agree to the Brightcove Publisher T and C found at https://accounts.brightcove.com/en/terms-and-conditions/. -- This script tag will cause the Brightcove Players defined above it to be created as soon as the line is read by the browser. If you wish to have the player instantiated only after the rest of the HTML is processed and the page load is complete, remove the line. -- brightcove.createExperiences();

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• SSIS Dashboard v0.4

  - by Davide Mauri

  Following the post on SSISDB script on Gist, I’ve been working on a HTML5 SSIS Dashboard, in order to have a nice looking, user friendly and, most of all, useful, SSIS Dashboard. Since this is a “spare-time” project, I’ve decided to develop it using Python since it’s THE data language (R aside), it’s a beautiful & powerful, well established and well documented and with a rich ecosystem around. Plus it has full support in Visual Studio, through the amazing Python Tools For Visual Studio plugin, I decided also to use Flask, a very good micro-framework to create websites, and use the SB Admin 2.0 Bootstrap admin template, since I’m all but a Web Designer. The result is here: https://github.com/yorek/ssis-dashboard and I can say I’m pretty satisfied with the work done so far (I’ve worked on it for probably less than 24 hours). Though there’s some features I’d like to add in t future (historical execution time, some charts, connection with AzureML to do prediction on expected execution times) it’s already usable. Of course I’ve tested it only on my development machine, so check twice before putting it in production but, give the fact that, virtually, there is not installation needed (you only need to install Python), and that all queries are based on standard SSISDB objects, I expect no big problems. If you want to test, contribute and/or give feedback please fell free to do it…I would really love to see this little project become a community project! Enjoy!

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• Items cannot be installed or removed

  - by Gyanendra Kumar Gyan

  installArchives() failed: (Reading database ... (Reading database ... 5% (Reading database ... 10% (Reading database ... 15% (Reading database ... 20% (Reading database ... 25% (Reading database ... 30% (Reading database ... 35% (Reading database ... 40% (Reading database ... 45% (Reading database ... 50% (Reading database ... 55% (Reading database ... 60% (Reading database ... 65% (Reading database ... 70% (Reading database ... 75% (Reading database ... 80% (Reading database ... 85% (Reading database ... 90% (Reading database ... 95% (Reading database ... 100% (Reading database ... 136187 files and directories currently installed.) Removing pidgin-ppa ... gpg: key "67265EB522BDD6B1C69E66ED7FB8BEE0A1F196A8" not found: eof gpg: 67265EB522BDD6B1C69E66ED7FB8BEE0A1F196A8: delete key failed: eof dpkg: error processing pidgin-ppa (--remove): subprocess installed post-removal script returned error exit status 2 No apport report written because MaxReports is reached already Processing triggers for ureadahead ... ureadahead will be reprofiled on next reboot Errors were encountered while processing: pidgin-ppa Error in function: SystemError: E:Sub-process /usr/bin/dpkg returned an error code (1)

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• Implementing a multilanguage AI contest platform

  - by Alejandro Piad

  This is a followup to this question. To sum: I'm implementing an AI contest site, where each user may submit several AI implementations for different games. Think about Google AI Challenge but instead of just having a big event once a year, I would like it more on a league fashion, with all virtual players playing with each other every some close period of time. I want to support as many programming languages as possible. I've seen that contest sites (like codeforces) ask you to submit a source code and interact through stdin and stdout. The first question is: what is the best way of supporting multiple languages? As I see it, I can either ask people to upload some binary/script, and interact either through stdin/*stdout*, or sockets, or the file system; or ask people to submit source code, and wrap it with whatever is necessary for the interaction. I would like to skip the need to compile the code by myself (in the server, I mean), but I am willing to do it if its the "best" choice. I need to comunicate virtual players with each other, or even better, with some intermediary arbiter. The second question is regarding security. If I'm going to be running user code in my server, I want to ensure strict security conditions, like no file system access, no networking, etc. Otherwise it would be a safe heaven for hackers. I will be implementing the engine/arbiter in .NET. I would like to support at least C#, C++, Java and Python for the user's implementations. I'm willing to write interfaces for each of these languages to simplify the user interaction with the system. Thanks in advance.

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• Powershell: Install-dotNET4 function

  - by marc dekeyser

  This function will download and install ,NET 4.0. It uses the Get-Framework-Versions function to determine if the installation is necessary or not. Internet Connectivity will be required as the script auto downloads the setup file (and sleeps for 360 seconds... I had a function in there to monitor for install completion at first, turns out the setup file spawns so many childprocesses the function just got confused and locked up -_-)Alternatively you could drop the installation file in the folder specified on the $folderPath variable too. That will skip the download and use the file. This function easily adapts in to other versions f.e. I use it for Powershell 3 installs as well!Function install-dotNet4 () {    if(($InstalledDotNET -eq "4.0") -or ($InstalledDotNET -eq "4.0c")){        write-host ".NET 4.0 Framework is already installed" -foregroundcolor Green    } else{            #set a var for the folder you are looking for        $folderPath = 'C:\Temp'        #Check if folder exists, if not, create it        if (Test-Path $folderpath){            Write-Host "The folder $folderPath exists." -ForeGroundColor Green        } else{            Write-Host "The folder $folderPath does not exist, creating..." -NoNewline -ForegroundColor Red            New-Item $folderpath -type directory | Out-Null            Write-Host " - done!" -ForegroundColor Green        }        # Check if file exists, if not, download it        $file = $folderPath+"\dotNetFx40_Full_x86_x64.exe"        if (Test-Path $file){            write-host "The file $file exists." -ForeGroundColor Green        } else {            #Download Microsoft .Net 4.0 Framework            Write-Host "Downloading Microsoft .Net 4.0 Framework..." -nonewline -ForeGroundColor DarkYellow            $clnt = New-Object System.Net.WebClient            $url = "http://download.microsoft.com/download/9/5/A/95A9616B-7A37-4AF6-BC36-D6EA96C8DAAE/dotNetFx40_Full_x86_x64.exe"            $clnt.DownloadFile($url,$file)            Write-Host " - done!" -ForegroundColor Green        }        #Install Microsoft .Net Framework        Write-Host "Installing Microsoft .Net Framework..." -nonewline -ForegroundColor DarkYellow        $dotNET4 = $folderPath+"\dotNetFx40_Full_x86_x64.exe /quiet /norestart"        Invoke-Expression $dotNET4        write-host " - done!" -ForegroundColor Green        start-sleep -seconds 360    }}

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• How to dump remote database without mysqldump?

  - by deceze

  I want to dump the database on my remotely hosted site in regular intervals using a shell script. Unfortunately the server is locked down pretty tight, has no mysqldump installed, binary files can't be executed by normal users/in home directories (so I can't "install" it myself) and the database lives on a separate server, so I can't grab the files directly. The only thing I can do is log into the webserver via SSH and establish a connection to the database server using the mysql command line client. How can I dump the contents to a file a la mysqldump in SQL format? Bonus: If possible, how can I dump the contents directly to my end of the SSH connection?

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• ASP.NET MVC 2 from Scratch &ndash; Part 1 Listing Data from Database

  - by Max

  Part 1 - Listing Data from Database: Let us now learn ASP.NET MVC 2 from Scratch by actually developing a front end website for the Chinook database, which is an alternative to the traditional Northwind database. You can get the Chinook database from here. As always the best way to learn something is by working on it and doing something. The Chinook database has the following schema, a quick look will help us implementing the application in a efficient way. Let us first implement a grid view table with the list of Employees with some details, this table also has the Details, Edit and Delete buttons on it to do some operations. This is series of post will concentrate on creating a simple CRUD front end for Chinook DB using ASP.NET MVC 2. In this post, we will look at listing all the possible Employees in the database in a tabular format, from which, we can then edit and delete them as required. In this post, we will concentrate on setting up our environment and then just designing a page to show a tabular information from the database. We need to first setup the SQL Server database, you can download the required version and then set it up in your localhost. Then we need to add the LINQ to SQL Classes required for us to enable interaction with our database. Now after you do the above step, just use your Server Explorer in VS 2010 to actually navigate to the database, expand the tables node and then drag drop all the tables onto the Object Relational Designer space and you go you will have the tables visualized as classes. As simple as that. Now for the purpose of displaying the data from Employee in a table, we will show only the EmployeeID, Firstname and lastname. So let us create a class to hold this information. So let us add a new class called EmployeeList to the ViewModels. We will send this data model to the View and this can be displayed in the page. public class EmployeeList { public int EmployeeID { get; set; } public string Firstname { get; set; } public string Lastname { get; set; } public EmployeeList(int empID, string fname, string lname) { this.EmployeeID = empID; this.Firstname = fname; this.Lastname = lname; } } Ok now we have got the backend ready. Let us now look at the front end view now. We will first create a master called Site.Master and reuse it across the site. The Site.Master content will be <%@ Master Language="C#" AutoEventWireup="true" CodeBehind="Site.Master.cs" Inherits="ChinookMvcSample.Views.Shared.Site" %>   <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head id="Head1" runat="server"> <title></title> <style type="text/css"> html { background-color: gray; } .content { width: 880px; position: relative; background-color: #ffffff; min-width: 880px; min-height: 800px; float: inherit; text-align: justify; } </style> <script src="../../Scripts/jquery-1.4.1.min.js" type="text/javascript"></script> <asp:ContentPlaceHolder ID="head" runat="server"> </asp:ContentPlaceHolder> </head> <body> <center> <h1> My Website</h1> <div class="content"> <asp:ContentPlaceHolder ID="body" runat="server"> </asp:ContentPlaceHolder> </div> </center> </body> </html> The backend Site.Master.cs does not contain anything. In the actual Index.aspx view, we add the code to simply iterate through the collection of EmployeeList that was sent to the View via the Controller. So in the top of the Index.aspx view, we have this inherits which says Inherits="System.Web.Mvc.ViewPage<IEnumerable<ChinookMvcSample.ViewModels.EmployeeList>>" In this above line, we dictate that the page is consuming a IEnumerable collection of EmployeeList. So once we specify this and compile the project. Then in our Index.aspx page, we can consume the EmployeeList object and access all its methods and properties. <table class="styled" cellpadding="3" border="0" cellspacing="0"> <tr> <th colspan="3"> </th> <th> First Name </th> <th> Last Name </th> </tr> <% foreach (var item in Model) { %> <tr> <td align="center"> <%: Html.ActionLink("Edit", "Edit", new { id = item.EmployeeID }, new { id = "links" })%> </td> <td align="center"> <%: Html.ActionLink("Details", "Details", new { id = item.EmployeeID }, new { id = "links" })%> </td> <td align="center"> <%: Html.ActionLink("Delete", "Delete", new { id = item.EmployeeID }, new { id = "links" })%> </td> <td> <%: item.Firstname %> </td> <td> <%: item.Lastname %> </td> </tr> <% } %> <tr> <td colspan="5"> <%: Html.ActionLink("Create New", "Create") %> </td> </tr> </table> The Html.ActionLink is a Html Helper to a create a hyperlink in the page, in the one we have used, the first parameter is the text that is to be used for the hyperlink, second one is the action name, third one is the parameter to be passed, last one is the attributes to be added while the hyperlink is rendered in the page. Here we are adding the id=”links” to the hyperlinks that is created in the page. In the index.aspx page, we add some jQuery stuff add alternate row colours and highlight colours for rows on mouse over. Now the Controller that handles the requests and directs the request to the right view. For the index view, the controller would be public ActionResult Index() { //var Employees = from e in data.Employees select new EmployeeList(e.EmployeeId,e.FirstName,e.LastName); //return View(Employees.ToList()); return View(_data.Employees.Select(p => new EmployeeList(p.EmployeeId, p.FirstName, p.LastName))); } Let us also write a unit test using NUnit for the above, just testing EmployeeController’s Index. DataClasses1DataContext _data; public EmployeeControllerTest() { _data = new DataClasses1DataContext("Data Source=(local);Initial Catalog=Chinook;Integrated Security=True"); }   [Test] public void TestEmployeeIndex() { var e = new EmployeeController(_data); var result = e.Index() as ViewResult; var employeeList = result.ViewData.Model; Assert.IsNotNull(employeeList, "Result is null."); } In the first EmployeeControllerTest constructor, we set the data context to be used while running the tests. And then in the actual test, We just ensure that the View results returned by Index is not null. Here is the zip of the entire solution files until this point. Let me know if you have any doubts or clarifications. Cheers! Have a nice day.

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• Best Hardware for a server attached to LCD TV displaying a Flash frontend

  - by DomingoSL

  Hello, i need a recomendation on what hardware (PC) to buy in order to achieve this task: I have a webserver (WAMP) running in my laptop, this server has a webapp who can manage information from a user. In a few words, a user enter in my webserver and a php script ask gim for a mensage who get store in a MYSql database, in other hand, inside the same PC there is a flash running with a frontend who take this mensages and shows it. My english is bad, maybe this diagram may help you: http://img689.imageshack.us/img689/2371/diagramav.png Well i want to connect the pc who runs all (Webserver, MySQL server, Flash front end) to a LCD TV in order to create something like an information spot that will be on almost all day (sometimes all day). Do you recomend to have the webserver and the frontend in the same pc? or to separate in two? What hardware do you recomend? i mean, type of pc, with fans or no, please cheap solutions but good. Thanks for your help.

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• Best Hardware for a server attached to LCD TV displaying a Flash frontend

  - by Domingo

  Hello, i need a recomendation on what hardware (PC) to buy in order to achieve this task: I have a webserver (WAMP) running in my laptop, this server has a webapp who can manage information from a user. In a few words, a user enter in my webserver and a php script ask gim for a mensage who get store in a MYSql database, in other hand, inside the same PC there is a flash running with a frontend who take this mensages and shows it. My english is bad, maybe this diagram may help you: Well i want to connect the pc who runs all (Webserver, MySQL server, Flash front end) to a LCD TV in order to create something like an information spot that will be on almost all day (sometimes all day). Do you recomend to have the webserver and the frontend in the same pc? or to separate in two? What hardware do you recomend? i mean, type of pc, with fans or no, please cheap solutions but good. Thanks for your help.

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• Httpd restart "Address already in use" error

  - by mtndesign

  I have an .rpm, which I created. In its %post part, I do some stuff, and in the end of this script, i call service httpd restart. It gives the following error: + service httpd restart Stopping httpd: [FAILED] Starting httpd: (98)Address already in use: make_sock: could not bind to address [::]:81 (98)Address already in use: make_sock: could not bind to address 0.0.0.0:81 no listening sockets available, shutting down Unable to open logs [FAILED] I got this from the rpm verbose installing (-vv). So I know its about httpd restart itself, nothing else. The according to netstat only one process (httpd) is listening on port 81. $ sudo netstat -nlp | grep 81 tcp 0 0 :::81 :::* LISTEN 29670/httpd I don't understand, why running http FAILS at stop, and FAILS again in start. Any ideas how to solve this?

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• Windows screen shots via command-line SSH session

  - by Geoff Fritz

  I've browsed the handful of "screen capture" queries here, but I was unable to find anything which addressed my specific need. I'm looking for a command-line tool that I can run via remote SSH connection (by way of the cygwin sshd daemon). There are several to choose from, but the few I've tried (ImageMagick, nircmd, and MiniCap) all result in a blank screen. I assume that this is due to the remotely logged in user not having a proper graphical console session running. The goal here is automate screen capture and retrieval of the main system console (what one would see if they were looking at the physical monitor) through the use of ssh script from a Unix host: ssh user@windowshost "screencap --output /tmp/console.jpg" scp user@windowshost:/tmp/console.jpg /some/destdir Note that these must be done on demand, so polling a remote directory that has snapshots dumped periodically will not work. Bonus points for programs that are open source and have a portable install (so I don't need to RDP/VNC into the machine to run a graphical installer).

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• Qmail: relay only from selected servers based on rDNS

  - by Frank

  I'm looking for a way to disable Qmail relaying for everyone, but allow one certain group of hosts to do so. These hosts all use the same identifying rDNS entry. In Exchange 2003, Postfix, Exim and cPanel this can be achieved pretty easily. However, the only to do this with Qmail is to do this based on IP's. The IP's however tend to change. These changes can occur at any time, and it is impossible to keep all the servers up-to-date to the new IP's. Running a script that resolves the hostname and whitelists them accordingly is my last-resort option, but this is not fool-proof. Does anyone know whether this is possible and if so, how? Thanks!

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• Issue porting Cocos2d-x to Android

  - by Anil

  I've written a basic game using Cocos2D-x on XCode. It works fine on the iPhone. Now I'm trying to port it to Android. When I run the script ./build_native.sh inside the proj.android folder, it gives me the following error: jni/../../Classes/MemoryModeLayer.cpp: In member function 'void MemoryModeLayer::startNewGame()': jni/../../Classes/MemoryModeLayer.cpp:109:25: error: 'time' is not a member of 'std' jni/../../Classes/MemoryModeLayer.cpp:109:25: note: suggested alternative: /Users/abc/android-ndk-r9d/platforms/android-8/arch-arm/usr/include/time.h:40:17: note: 'time' jni/../../Classes/MemoryModeLayer.cpp:111:5: error: 'random_shuffle' is not a member of 'std' jni/../../Classes/MemoryModeLayer.cpp:112:5: error: 'random_shuffle' is not a member of 'std' make: *** [obj/local/armeabi/objs/cocos2dcpp_shared/__/__/Classes/MemoryModeLayer.o] Error 1 make: Leaving directory `/Users/abc/cocos2d-x-2.2.3/projects/Game/proj.android' In MemoryModeLayer.cpp I have the following: std::srand(unsigned(std::time(0))); std::random_shuffle(_xCod, _xCod + _numberOfRows); std::random_shuffle(_yCod, _yCod + _numberOfColumns); I've included the following headers as well: #include <string> #include <ctime> #include <algorithm> #include <iostream> #include <iomanip> Also added using namespace std in the header file. Is there anything else that I should do?

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• Should I be using Lua for game logic on mobile devices?

  - by Rob Ashton

  As above really, I'm writing an android based game in my spare time (android because it's free and I've no real aspirations to do anything commercial). The game logic comes from a very typical component based model whereby entities exist and have components attached to them and messages are sent to and fro in order to make things happen. Obviously the layer for actually performing that is thin, and if I were to write an iPhone version of this app, I'd have to re-write the renderer and core driver (of this component based system) in Objective C. The entities are just flat files determining the names of the components to be added, and the components themselves are simple, single-purpose objects containing the logic for the entity. Now, if I write all the logic for those components in Java, then I'd have to re-write them on Objective C if I decided to do an iPhone port. As the bulk of the application logic is contained within these components, they would, in an ideal world, be written in some platform-agnostic language/script/DSL which could then just be loaded into the app on whatever platform. I've been led to believe however that this is not an ideal world though, and that Lua performance etc on mobile devices still isn't up to scratch, that the overhead is too much and that I'd run into troubles later if I went down that route? Is this actually the case? Obviously this is just a hypothetical question, I'm happy writing them all in Java as it's simple and easy get things off the ground, but say I actually enjoy making this game (unlikely, given how much I'm currently disliking having to deal with all those different mobile devices) and I wanted to make a commercially viable game - would I use Lua or would I just take the hit when it came to porting and just re-write all the code?

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• How to place SuperFetch cache on an SSD?

  - by Ian Boyd

  I'm thinking of adding a solid state drive (SSD) to my existing Windows 7 installation. I know I can (and should) move my paging file to the SSD: Should the pagefile be placed on SSDs? Yes. Most pagefile operations are small random reads or larger sequential writes, both of which are types of operations that SSDs handle well. In looking at telemetry data from thousands of traces and focusing on pagefile reads and writes, we find that Pagefile.sys reads outnumber pagefile.sys writes by about 40 to 1, Pagefile.sys read sizes are typically quite small, with 67% less than or equal to 4 KB, and 88% less than 16 KB. Pagefile.sys writes are relatively large, with 62% greater than or equal to 128 KB and 45% being exactly 1 MB in size. In fact, given typical pagefile reference patterns and the favorable performance characteristics SSDs have on those patterns, there are few files better than the pagefile to place on an SSD. What I don't know is if I even can put a SuperFetch cache (i.e. ReadyBoost cache) on the solid state drive. I want to get the benefit of Windows being able to cache gigabytes of frequently accessed data on a relativly small (e.g. 30GB) solid state drive. This is exactly what SuperFetch+ReadyBoost (or SuperFetch+ReadyDrive) was designed for. Will Windows offer (or let) me place a ReadyBoost cache on a solid state flash drive connected via SATA? A problem with the ReadyBoost cache over the ReadyDrive cache is that the ReadyBoost cache does not survive between reboots. The cache is encrypted with a per-session key, making its existing contents unusable during boot and SuperFetch pre-fetching during login. Update One I know that Windows Vista limited you to only one ReadyBoost.sfcache file (I do not know if Windows 7 removed that limitation): Q: Can use use multiple devices for EMDs? A: Nope. We've limited Vista to one ReadyBoost per machine Q: Why just one device? A: Time and quality. Since this is the first revision of the feature, we decided to focus on making the single device exceptional, without the difficulties of managing multiple caches. We like the idea, though, and it's under consideration for future versions. I also know that the 4GB limit on the cache file was a limitation of the FAT filesystem used on most USB sticks - an SSD drive would be formatted with NTFS: Q: What's the largest amount of flash that I can use for ReadyBoost? A: You can use up to 4GB of flash for ReadyBoost (which turns out to be 8GB of cache w/ the compression) Q: Why can't I use more than 4GB of flash? A: The FAT32 filesystem limits our ReadyBoost.sfcache file to 4GB Can a ReadyBoost cache on an NTFS volume be larger than 4GB? Update Two The ReadyBoost cache is encrypted with a per-boot session key. This means that the cache has to be re-built after each boot, and cannot be used to help speed boot times, or latency from login to usable. Windows ReadyDrive technology takes advantage of non-volatile (NV) memory (i.e. flash) that is incorporated with some hybrid hard drives. This flash cache can be used to help Windows boot, or resume from hibernate faster. Will Windows 7 use an internal SSD drive as a ReadyBoost/*ReadyDrive*/SuperFetch cache? Is it possible to make Windows store a SuperFetch cache (i.e. ReadyBoost) on a non-removable SSD? Is it possible to not encrypt the ReadyBoost cache, and if so will Windows 7 use the cache at boot time? See also SuperUser.com: ReadyBoost + SSD = ? Windows 7 - ReadyBoost & SSD drives? Support and Q&A for Solid-State Drives Using SDD as a cache for HDD, is there a solution? Performance increase using SSD for paging/fetch/cache or ReadyBoost? (Win7) Windows 7 To Boost SSD Performance How to Disable Nonvolatile Caching

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• DB API for shell scripting (any shell)

  - by foampile

  I am faced with some legacy shell scripts that run batch data processing jobs in Oracle using SQL+. For the most part, the data tier does not have to communicate back to the script with retrieved data to be passed for shell-level processing but in a few cases it does. The problem is, SQL+ is really meant to be an end user app and not an API that can communicate with other clients programmaticaly. That is why people have invented APIs such as DBD::DBI for Perl, JDBC for Java, ODBC etc. The way it is done is they invoke SQL+ and then parse the output, which is clearly designed for human eye consumption, using tools like sed and awk. The whole thing is at best a hack and very prone to bugs. Since this client is rather conservative with their technology, they don't want to scale their scripts up to Perl or Python where there are data access APIs. So I am wondering whether there are similar APIs for shell, e.g. K or bash. What I would like is if an API would return data in a 2-dimensional array or strings (for the lack of type setting) so that I can just read DB data like that. The way they do it now is akin to parsing regular web page HTML to get a single stock quote rather than cleanly calling a web service and be done with it. Anybody know of a product I can use? Thanks

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• Bash command substitution not working as expected

  - by Joe Fruchey

  I'd like to view the last few lines of a file, but I want the columns aligned. Basically, I want to disable wordwrap. This is straightforward with: tail $FILE | cut -c -80 But I'm trying to generalize my script for other users, and I'd like to cut to the actual terminal width, which I can get with: stty size | cut -d" " -f2 So I would imagine that I could just tail $FILE | cut -c -`stty size | cut -d" " -f2` but it doesn't work: stty: standard input: Invalid argument cut: invalid range with no endpoint: - Try `cut --help' for more information. (Same results with the 'new' $() expansion.) Now, if I echo it, it seems fine: echo cut -c -`stty size | cut -d" " -f2` cut -c -103 Am I just missing an escape char? Or is this somehow just not possible? Thanks.

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• Is it possible to re-lock a bitlocker drive?

  - by Sean Edwards

  I'm running a partition with bitlocker on a Windows 7 Ultimate machine, which contains secure data that I have to recover infrequently. Unlocking it to access the data is obviously no problem, but is there a way to re-lock the partition when I'm done? The best I've found so far is this: http://social.technet.microsoft.com/Forums/en-US/w7itprosecurity/thread/41607938-7452-440d-8253-67fe8657bc0f Currently I have a .bat script on that drive that I can run as administrator, and that re-locks the drive, but it feels like kind of a hackish solution. Does anyone have anything better? Any idea when Microsoft might release a fix for this?

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