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• MS 70-536 .NET Framework Foundation - info on Exam? Especially regex?

  - by Sebastian P.R. Gingter

  Hi, I know there are already some questions about this, but not that specific. I have the self-paced training kit and worked through the test exam tool that is on the CD coming with the book. I constantly fail on the test tool, mostly on the regex questions. I'm not a regex guru. In fact my regex-fu is more than weak. I know what regex'es are, how I can use them and where my 'Regular expressions - kurz und gut' book is in my drawer in case I really need them. And to be honest I feel like learning regex is a total waste of time, because if I need them I have either a colleague that is fit and can do them in just a few seconds or I need my book and get them right in a still fair amount of time. And from my experience I can tell that I need regex like once in two or three years. So just putting in a lot of time into learning just the expressions to pass the exam is.. something I like not to have to do. Can you tell me something about the real exam vs. the test exam tool on the book and about the need to know regex for passing it? Thank you for your time. Marked as Community Wiki. Hope that fits?

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• Install Firefox on Windows 7 for all users

  - by Pointy

  This has got to be among the simplest possible things in the word for those who know how to do it. However, I don't, and I have been astonished to find nothing about it from google searches other than unanswered copies of the exact same question. All I want is Firefox, and I want it for all users on a Windows 7 laptop. In fact, the real story is that I want it to work again for all users after updating from Firefox 5 to Firefox 8, which process has apparently left it unavailable to anybody but the administrator. I'll probably find the answer to this in the time it takes for this question to get answered, but I promise I'll upvote you anyway :-) I mainly wanted to get this question (hopefully with good answers) out there so that it turns up on a Google search.

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• Moving to an SSD with Windows 7

  - by Nick Gerakines

  Disclaimer: I've been digging around for a few days and didn't get what I was looking for in terms of answers, so I'm asking here. I've recently purchased an 80g SSD drive to use as my boot up and OS parition. I've got a windows 7 desktop with two 1TB (raid0) disks currently and I'm not sure where to start in terms of copying / moving the OS. I suppose that doing a fresh install isn't out of the question, but I've got an upgrade disk from Vista that I'd have to deal with. Where do I begin?

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• How long is the Windows 8 activation period if I do not connect to the internet?

  - by Moab

  This is not a duplicate of this question, since the OP had already connected to the internet. I installed Windows 8 Consumer Retail and was not connected to the internet, and remain unconnected so it cannot automatically activate. How long can I use Windows 8 this way (never connected to the internet) and without activating the license? I want documentation links, not just an answer you think is true or read somewhere, back up any statements with clear documentation please. Answers related to Vista-W7 activation or commands used in Vista-W7 to check license status are not acceptable as Microsoft completely changed activation technologies for windows 8.

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• Ruby, Python, or PHP?

  - by Gabe

  And so we return to the age old question - but with a few twists. This morning, I searched and read up on which web development language to learn first. I'm thinking Ruby, Python, or perhaps PHP. But I have a few questions before deciding. Background: I'm a year into C++ (through school), but want to get into web development. I have all summer to commit to one language, learn it, do some projects, get up some websites, and so on. Now my questions (and these are assuming that I should choose between Ruby, Python, and PHP - if I should choose a different language, let me know.): I hope to use whichever language I learn for websites/web apps. Some of the threads on stackoverflow suggested Python was the best overall language, but others were unanimous that Ruby was best specifically for web development. For a first language suited towards web development, which language do you recommend, and why? This might tie into the first question, but which language looks most promising for future work, future personal projects, and basically the future in general? I'm just a freshman in college. Ideally, the language I choose would be on the rise, community-wise and opportunity-wise. (One reason I'm leaning towards Ruby is that it seems a lot of the newer tech startups/successes are using it.)

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• French accents on a PC with US keyboard??

  - by frenchie

  My laptop has a US keyboard, and I need to write some French, with accents. I know there's a painful way to do it with combinations of the alt key and the ascii code alt-codes, but I was wondering if there was an easier way to do it. PS: Since the question is closed (but the answers no great) I thought I'd add this addendum. Basically, you need to set the keyboard to US International and then you can do accents using 'e or 'a; see this link: http://support.microsoft.com/kb/97738 PS: Much much better solution: http://keyxpat.com.

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• How can I redirect HTTPS(S) traffic to anothr gateway?

  - by PsyStyle

  I have a network like 192.168.0.0/15 with the default gateway set to 192.168.0.1. Al the workstations of the network use this gateway for all kind of accesses to the Internet. Now I am testing a new Internet connection with another provider and for this I am using a second gateway on the same subnet with 192.168.0.2 as IP address. I want to redirect only HTTP and HTTPS traffic to this second gateway without touching the address of the default gateway set inside every workstation. How can I accomplish this task? What I have to change inside the first's gateway firewall configuration or routes? I tried with a dnat like DNAT loc:192.168.0.1 loc:192.168.0.2 tcp 80 but nothing worked. I use Shorewall for simplicity in configuration but I can understand even theorical answers which I will try to adapt to my case

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• Run script after Jquery finish

  - by Felipe Fernández

  First let's explain the hack that I was trying to implement. When using Total Validator Tool through my web page and I get following error: [WCAG v1 6.3 (A), US-508-l] Consider providing a alternative after each tag As my page relies heavily on javascript I can't provide a real alternative, so I decided to add an empty noscript tag after every script appearence. Let's say I need to provide a clean report about accesibility about my web page even the hack is senseless. (I know the hack is unethical and silly, let's use it as example material, but the point of my post are the final questions) I tried the following approach: $(document).ready(function(){ $("script").each(function() { $(this).after("<noscript></noscript>"); }); }); The problem raises because I have a jQueryUI DatePicker component on my page. jQuery adds a script section after the DOM is ready so my hack fails as miss this section. So the questions are: How handles jQuery library to be executed after document is ready? How can I run my code after jQuery finish its labours?

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• What domain names are served by a host?

  - by pjmorse

  For a set of VPSes operated by my company, I'd like to get a list of domain names hosted by each. The list of names has grown in an ad-hoc way for a few years. Is there a simple way to query the Apache and/or Nginx configurations to see what domains the server answers to on port 80? It is safe to assume (a) that I have sudo on these systems, and (b) they aren't using wildcards, although a solution which acknowledged that a wildcard was in use would be useful too if it also provided a list of explicit domains.

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• Find all radio groups which haven't been selected

  - by nickf

  I have a basic quiz/survey type application I'm working on, and I'd like to give the user a prompt before they submit if they haven't answered all the questions. All the questions are multiple choice using radio buttons: <div class="question"> Q1: What is the second letter of the alphabet? <div class="choices"> <input type="radio" name="question_1" value="1" /> A <input type="radio" name="question_1" value="2" /> B <input type="radio" name="question_1" value="3" /> C </div> </div> <div class="question"> Q2: Which out of these is a berry? <div class="choices"> <input type="radio" name="question_2" value="1" /> Apples <input type="radio" name="question_2" value="2" /> Bananas <input type="radio" name="question_2" value="3" /> Carrots </div> </div> <div class="question"> ...etc How do you find which groups haven't got an option ticked? Or at least, if there are any which haven't been answered? jQuery is ok, and even preferred.

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• Chrome logs me out of everything when I exit--tried cookie-related stuff already

  - by GreatBigBore

  I've been using Chrome very successfully for a long time. It has always kept me logged in to all my sites even after exiting the app. Recently it started logging me out of everything when I exit Chrome. I've fooled around with all the various advanced cookie settings, and I've cycled through the options hoping that Chrome just needed a wakeup call or a reset or something. I've also deleted all the cookies in case a corrupted one is confusing Chrome. Nothing works! I see cookies when I log in, but they all go away when I exit Chrome. I've searched all over the place and seen only the standard answers relating to resetting cookies, local data, sessions, that sort of thing. Any Chrome gurus out there, please send a telepathic message to my browser asking it to resume its previous excellent behavior. Alternatively, you could suggest other possible solutions.

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• Open table cache in MySQL

  - by vvanscherpenseel

  I have my open table cache set to 1800 and I have a total of 1112 tables. MySQL Tuning Primer reports that 100% of my table cache is used yet my table cache hit rate is 5%. I understand that this happens due to concurrent connections all opening tables. I think I should raise the cache limit. I understand that the cache size is limited by the file descriptor limit of my operating system, but are there any other practical limitations I should be aware of? Searching Google or this very website yields mostly posts explaining the connection-factor or come up with indecisive answers. My question: can I safely increase the open table cache limit? Is there a maximum?

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• Why is textbox.focus throwing the lostfocus event?

  - by cost

  I've seen a few similar questions on SO but nothing that seems to actually address the issue. Here's a simplified version of the function. Private Sub Check_Quantity(sender As System.Object, e As System.Windows.RoutedEventArgs) _ Handles textbox_quantity.LostFocus Dim worked As Boolean = Integer.TryParse(textbox_quantity.Text, quantity) If Not worked Then MsgBox("Enter a valid number for the quantity") textbox_quantity.Focus() textbox_quantity.SelectAll() quantity = 0 End If End Sub It's important to note that this is WPF. What I want to do is very simple. When someone finishes with the textbox the program checks that what they entered is a number. If it does it sticks this in an integer. If not, it tells them to fix it and keeps the focus on the textbox. The issue is a few things, but what it comes down to is this function runs in an infinite loop. This same function works fine in WinForms, but not in WPF. On some other questions people have said that the messagebox appearing causes focus to be lost, but in testing this isn't true. It still loops regardless of if the messagebox is called or not. The problem is the call to textbox_quantity.Focus(). Without that it works fine. Regardless of whether it's there or not though, focus is not set to the textbox, though textbox_quantity.Focus() still returns a value of true. Any thought of what's going on and maybe how I could fix it?

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• Software Suggestion for Managing Voice Recordings (Windows)

  - by Cbeppe

  I'm looking for Windows software that allows me to effectlively manage already made voice recordings. I have a series of recordings taken from an iPhone and I have extracted the files. The problem is that these are very long recordings and therefore I'm looking for software that allows me to: Bookmark a time in the recording Effectively manage multiple files (like Adobe Bridge does with images) Freeware or Payware Possibly other features, I haven't done this before and I'm sorry I'm unable to give a more professional description. Thanks in advance to everyone who can help! If you have any other questions, please don't hesitate to ask - I will try my best to provide useful answers.

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• Only show changed files while syncing from ext4 to NTFS

  - by qox

  I would like rsync to print modified and deleted files. The verbose option (-v) does print modified files but also the list of subdirectories, maybe because touched directories are considered modified. Since I sync a lot of files from a lot of subdirectories, it's impossible to see the actual changes. So, is there a way to not print directories using rsync ? Im not looking for grep -v "*/$" kind of answers since it would also exclude new directories. Command I am using: rsync -avh --delete /media/data/src /media/data/bkp And everytime it prints the list of all directories: src/dir1/ src/dir1/sdir1/ src/dir1/sdir2/ src/dir2/ ..... Thanks for your help. EDIT: Ok, after some intensive tests .. It doesn't print all directories when syncing from an ext4 partition to an ext4 and from NTFS to NTFS. It only does when syncing from ext4 to NTFS .. And options '-c' or '--omit-dir-times' don't change that.

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• Access denied for user 'root@localhost' (using password:NO)

  - by murgatroid99

  I am attempting to install a network management package called cacti onto Ubuntu running under Windows Virtual PC. I attempted to install MySQL as it is one of cacti's dependencies. I can install and start the MySQL server, but whenever I try to access it in any other way, such as to change the password, I get the error message Access denied for user 'root@localhost' (using password:NO). I would like to know what is causing this and how to fix it. Edit: (just in case my comments are not visible) The answers from HD and Devin Ceartas did not work for me.

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• Why can’t I create a database in an empty ASP MVC 2 project using Project->Add->New Item->SQL Server

  - by Dr Dork

  I'm diving head first into ASP MVC and am playing around with creating and manipulating a database. I did a search and found this tutorial for creating a database, however when I follow it, I get this error right at the start when trying to add a new database to my fresh, empty ASP MVC 2 project... A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified) The only requirement the tutorial mentioned was SQL Server Express, but when I went to download it, it said it was already installed. I'm assuming it was part of the VS 2010 RC I installed and am running. So I don't know what else I need if I am missing something. This is all new to me, so I'm sure I'm missing something obvious here and after I'm done posting this question, I plan to do some more research into the topic of databases and how they work with ASP MVC. In the meantime, I was you could help me answer a couple high level questions... What am I missing/forgetting to do that is causing this error? Any suggestions for good resources/tutorials that focus on using databases with ASP MVC? I've done a lot of database programming in the past, so I'm familiar with the concepts of relational databases and the SQL language. I wish I could find a good resource for learning how to work with them in an ASP dev environment, as well as a good breakdown of all the related technologies used for working with them (i.e. LINQ to SQL). Thanks so much in advance for all your help! I'm going to start researching these questions right now.

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• Is there a multi-user Remote Desktop app for Mac OS X?

  - by Peter Walke

  Is there a remote desktop app for the Mac that allows multiple people to be remoted in at the same time, similar to RDP in Windows? I've used VNC, but that only allows one person to control the computer. For some background: I'd like to set up a mac that many users can RDP into from PC's to do XCode development. I did some searching and didn't find anything, so I'm assuming it's just not possible, but I want to confirm. Thanks. Update: Thanks to a link in one of the answers, I found a reasonable solution: AquaConnect

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• choose javascript variable based on element id from jquery

  - by phoffer

  I feel like this is a simple question, but I am still relatively new to javascript and jquery. I am developing a site for a touch interface that uses unordered lists and jquery .click functions to take input data. I have a section to input a m:ss time, with 3 divs, each containing a list of digits for time. I need to get the input for each column and set it as a variable. I originally designed the inputs to change form inputs, because I didn't understand javascript very much. It was easy to change the 3 hidden inputs by using div id's, but I can't figure out how to do it now with javascript variables. Here is my original jquery code... $("div#time>div>ul>li").click(function() { var id = $(this).parents(".time").attr("name"); var number = $(this).html(); $("input#"+id).val(number); }); The last line sets one of 3 hidden inputs equal to whatever was clicked. I need to make it so separate variables take the inputs, then I can manipulate those variables however I want. Here's a short snippet of the html, to have an idea of how jquery grabs it. <div id="time"> <h1>Time</h1> <div name="minute" class="time" id="t_minute"> M : <ul> The full time html is here: link text Thanks everyone! I've been using SO to answer many questions I've had, but I couldn't find something for this, so I figured I would join, since I'm sure I will have more questions along the way.

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• Running VMWare EXS(i) on Apple Xserve

  - by xzyfer

  So we're running VMWare Esx(i) (I'm not completely sure which as I'm out of the office) running on Windows Server 2008. However it turns out the machine we're running it on has serious hardware limitations, most importantly it's restricted to 4gb of ram. We've since inherited a much more powerful server. The problem being the new server is an Apple Xserver running, I believe, Snow Leopard Server. My question is, can I run VMWare Exs(i) on Xserver, or an equivalent? I'm done some hardcore Googling and the best that I can find is that it's not supported, but it might work, but there are no guarantees (this has been stated many times on the VMWare forums by the VMWare support staff). But all these search results are years old, so I can't find any recent answers regarding this. Has anyone accomplished this?

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• Performance difference between functions and pattern matching in Mathematica

  - by Samsdram

  So Mathematica is different from other dialects of lisp because it blurs the lines between functions and macros. In Mathematica if a user wanted to write a mathematical function they would likely use pattern matching like f[x_]:= x*x instead of f=Function[{x},x*x] though both would return the same result when called with f[x]. My understanding is that the first approach is something equivalent to a lisp macro and in my experience is favored because of the more concise syntax. So I have two questions, is there a performance difference between executing functions versus the pattern matching/macro approach? Though part of me wouldn't be surprised if functions were actually transformed into some version of macros to allow features like Listable to be implemented. The reason I care about this question is because of the recent set of questions (1) (2) about trying to catch Mathematica errors in large programs. If most of the computations were defined in terms of Functions, it seems to me that keeping track of the order of evaluation and where the error originated would be easier than trying to catch the error after the input has been rewritten by the successive application of macros/patterns.

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• cakephp group based permissions

  - by Elwhis

  Hey guys, I would like to have group based restrictions that would allow users to access only specified parts of the web. I am new to the whole ACL stuff and I didn't quite get it from the manual :/ therefore I would like to ask some questions. But before any questions, my routes look like this: Router::connect('/', array('controller' => 'users', 'action' => 'login')); Router::connect('/admin/:controller/:action/*', array('prefix' => 'admin', 'admin' => true)); Router::connect('/registered/:controller/:action/*', array('prefix' => 'registered', 'registered' => true)); 1.) How do I restrict users from any other group than Administrator to access ONLY the /registered/ part of the web 2.) How do I prevent anyone from using the default addresses like www.example.com/users/add on a global scale (I want only www.example.com/admin/users/add or www.example.com/registered/users/add type of addresses)? This kind of addresses is not event set in the routes.php but they still work. Any answers apprecated

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• UID /GID with NFS and ZFS

  - by profy

  Hi, I have a server with a zfs file system (nexenta core), and I'm sharing files overs nfs with zfs share share_nfs. When I mount the file system on my client (a ubuntu workstation) I can't have the original UID/GID :( I mount my client with the following options : 192.168.1.4:/home /media/testnfs nfs rw,dev,noexec,nosuid,auto,nouser,noatime,rsize=8192,wsize=8192 0 0 If I configure idmapd I have nobody:nogroup and without idmapd I have 4294967294:4294967294, how can I get the original ID's ? Is it a problem with the nfs server or the client ? Thanks for answers.

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• How should oracle vbox look like in terms of Memory, CPU and Performance? [duplicate]

  - by Nicholas DiPiazza

  This question already has an answer here: Can you help me with my capacity planning? 2 answers I've got a need for a ton of VMs to simulate some realistic load testing scenarios. I've got a bunch of different host machines that differ in ram, cpu's, etc. What should my resource manager look like? Is there a standard way to know what the CPU, Memory and Disk Utilization should be given your CPUs + Memory available + Disks available? For example, I have a box: MemTotal: 50 Gb CPUs: 8 CPUs are pretty much 100% all day long. Memory is at about 60%. Swap not getting hit. Little bewildered by why the VMs, while doing the exact same test script, are showing different virtual memory consumption. Huh.

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• Limiting a search to records from last_request_at...

  - by bgadoci

  I am trying to figure out how to display a count for records that have been created in a table since the last_request_at of a user. In my view I am counting the notes of a question with the following code: <% unless @questions.empty? %> <% @questions.each do |question| %> <%= h(question.notes.count) %> end end This is happening in the /views/users/show.html.erb file. Instead of counting all the notes for the question, I would only like to count the notes that have been created since the users last_request_at datetime. I don't neccessarily want to scope notes to display this 'new notes' count application wide, just simply in this one instance. To accomplish I am assuming I need to create a variable in the User#show action and call it in the view but not really sure how to do that. Other information you may need: class Note < ActiveRecord::Base belongs_to :user belongs_to :question end class Question < ActiveRecord::Base has_many :notes, :dependent => :destroy belongs_to :user end

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