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  • The youtube API sometimes throws error: Call to a member function children() on a non-object

    - by Anna Lica
    When i launch the php script, sometime works fine, but many other times it retrieve me this errror Fatal error: Call to a member function children() on a non-object in /membri/americanhorizon/ytvideo/rilevametadatadaurlyoutube.php on line 21 This is the first part of the code // set feed URL $feedURL = 'http://gdata.youtube.com/feeds/api/videos/dZec2Lbr_r8'; // read feed into SimpleXML object $entry = simplexml_load_file($feedURL); $video = parseVideoEntry($entry); function parseVideoEntry($entry) { $obj= new stdClass; // get nodes in media: namespace for media information $media = $entry->children('http://search.yahoo.com/mrss/'); //<----this is the doomed line 21 UPDATE: solution adopted for ($i=0 ; $i< count($fileArray); $i++) { // set feed URL $feedURL = 'http://gdata.youtube.com/feeds/api/videos/'.$fileArray[$i]; // read feed into SimpleXML object $entry = simplexml_load_file($feedURL); if ( is_object($entry)) { $video = parseVideoEntry($entry); echo ($video->description."|".$video->length); echo "<br>"; } else { $i--; } } In this mode i force the script to re-check the file that caused the error

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  • [IE6] Cannot upload non-existent file

    - by geff_chang
    I am asking the same question as this: http://stackoverflow.com/questions/691323/trying-to-upload-a-non-existent-file-in-internet-explorer-form-is-not-submitted I'm not sure if the topic starter found a solution, since he did not post the answer. So, I'd like to ask you guys this question again. I have type=input in my form, and a submit button. If I type garbage input into the textbox (like the text "abc") in the file control's textbox, and click the submit button, the form is not submitted to the server. AND, no feedback is given to the user. Instead of this "Is-the-submit-button-broken?" behavior, is there a way I could notify the user that the file does not exist? (I am aware this is not possible, except with ActiveX, but I don't want to go into that) My client wants to hide the textbox of the file control, but I'm not sure if this is a good design. What do you guys suggest? (If it makes any difference, I am also using this jquery plugin: http://www.fyneworks.com/jquery/multiple-file-upload/)

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  • algorithm to find longest non-overlapping sequences

    - by msalvadores
    I am trying to find the best way to solve the following problem. By best way I mean less complex. As an input a list of tuples (start,length) such: [(0,5),(0,1),(1,9),(5,5),(5,7),(10,1)] Each element represets a sequence by its start and length, for example (5,7) is equivalent to the sequence (5,6,7,8,9,10,11) - a list of 7 elements starting with 5. One can assume that the tuples are sorted by the start element. The output should return a non-overlapping combination of tuples that represent the longest continuos sequences(s). This means that, a solution is a subset of ranges with no overlaps and no gaps and is the longest possible - there could be more than one though. For example for the given input the solution is: [(0,5),(5,7)] equivalent to (0,1,2,3,4,5,6,7,8,9,10,11) is it backtracking the best approach to solve this problem ? I'm interested in any different approaches that people could suggest. Also if anyone knows a formal reference of this problem or another one that is similar I'd like to get references. BTW - this is not homework. Edit Just to avoid some mistakes this is another example of expected behaviour for an input like [(0,1),(1,7),(3,20),(8,5)] the right answer is [(3,20)] equivalent to (3,4,5,..,22) with length 20. Some of the answers received would give [(0,1),(1,7),(8,5)] equivalent to (0,1,2,...,11,12) as right answer. But this last answer is not correct because is shorter than [(3,20)].

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  • Jquery (non-gem) plugin won't work in my rails 3.2 app

    - by jfdimark
    I'm trying to equalize columns in my rails 3.2 app, and while there may be a better way to do it then my current attempt, after hours of trying to make it work I'd like to see if anyone can point out specifically why this jQuery plugin (which isn't a gem) is not working. I'm not getting any errors in the developer console, so it's hard to pin point. Here's the relevant code: The index view, where I've followed the plugin's instructions: div id="column-group"> <div class="equalize span5 offset1 UserProfile"> <% if user_signed_in? %> <h3>Hello <%= current_user.name %>!</h3> </div> <div class="equalize span5 MemberDisplay"> My application.js file, where I've also included the specific js code, so it would definitely be picked up by the application: //= require jquery //= require jquery_ujs //= require bootstrap //= require equalize_column_heights //= require_tree . $(document).ready(function() { $("#column-group").equalize_column_heights("equalize"); }); The jQuery plugin code, which is saved in my vendor/assets/javascripts folder: (function ($) { $.fn.equalize_column_heights = function (equalize_class) { var tallest_column=0; parent_id = "column-group" + $(this).attr("id") + " ." + equalize_class; $(parent_id).each(function(index, value) { if (tallest_column < $(this).height()){ tallest_column = $(this).height(); } }); $(parent_id).each(function(index, value) { $(this).css({'min-height': tallest_column}); }); } }(jQuery)); I've read all the rails guides documentation on the asset pipeline and all the relevant jQuery-rails3 questions on SO, but after several hours, I just can't seem to figure this one out. If anyone can point to other tutorials on how to get non-gem jQuery plugins to work in a Rails 3.2 app then I'd be glad to take a look!

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  • Large free block of english non-pronoun text

    - by Tom
    As part of teaching myself python I've written a script which allows a user to play hangman. At the moment, the hangman word to be guessed is simply entered manually at the start of the script's code. I want instead for the script to choose randomly from a large list of english words. This I know how to do - my problem is finding that list of words to work from in the first place. Does anyone know of a source on the net for, say, 1000 common english words where they can be downloaded as a block of text or something similar that I can work with? (My initial thought was grabbing a chunk of a novel from project gutenburg [this project is only for my own amusement and won't be available anywhere else so copyright etc doesn't matter hugely to me btw], but anything like that is likely to contain too many names or non-standard words that wouldn't be suitable for hangman. I need text that only has words legal for use in scrabble, basically). It's a slightly odd question for here I suppose, but actually I thought the answer might be of use not just to me but anyone else working on a project for a wordgame or similar that needs a large seed list of words to work from. Many thanks for any links or suggestions :)

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  • Why extremely occasionally will one of bof/eof be true for a new non-empty recordset

    - by jjb
    set recordsetname = databasename.openrecordset(SQLString) if recordsetname.bof <> true and recordsetname.eof <> true then 'do something end if 2 questions : the above test can evaluate to false incorrectly but only extremely rarely (I've had one lurking in my code and it failed today, I believe for the first time in 5 years of daily use-that's how I found it). Why very occasionally will one of bof/eof be true for a non-empty recordset. It seems so rare that I wonder why it occurs at all. Is this a foolproof replacement: if recordsetname.bof <> true or recordsetname.eof <> true then Edit to add details of code : Customers have orders, each order begins with a BeginOrder item and end with an EndOrder item and in between are the items in the order. The SQL is: ' ids are autoincrement long integers ' SQLString = "select * from Orders where type = OrderBegin or type = OrderEnd" Dim OrderOpen as Boolean OrderOpen = False Set rs = db.Openrecordset(SQLString) If rs.bof <> True And rs.eof <> True Then myrec.movelast If rs.fields("type").value = BeginOrder Then OrderOpen = True End If End If If OrderOpen F False Then 'code here to add new BeginOrder Item to Orders table ' End If ShowOrderHistory 'displays the customer's Order history ' In this case which looks this this BeginOrder Item a Item b ... Item n EndOrder BeginOrder Item a Item b ... Item n EndOrder BeginOrder Item a item b ... Item m BeginOrder <----should not be there as previous order still open

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  • Access to SQL Server 2005 from a non-domain machine using Windows authentication

    - by user304582
    Hi, I have a Windows domain within which a machine is running SQL Server 2005 and which is configured to support only Windows authentication. I would like to run a C# client application on a machine on the same network, but which is NOT on the domain, and access a database on the SQL Server 2005 instance. I thought that it would be a simple matter of doing something like this: string connectionString = "Data Source=server;Initial Catalog=database;User Id=domain\user;Password=password"; SqlConnection connection = new SqlConnection(connectionString); connection.Open(); However, this fails: the client-side error is: System.Data.SqlClient.SqlException: Login failed for user 'domain\user' and the server-side error is: Error 18456, Severity 14, State 5 I have tried various things including setting integrated security to true and false, and \ instead of \ in the User Id, but without success. In general, I know that it possible to connect to the SQL Server 2005 instance from a non-domain machine (for example, I am working with a Linux-based application which happily does this), but I don't seem to be able to work out how to do it from a Windows machine. Help would be appreciated! Thanks, Martin

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  • Call to a member function find() on a non-object simpleHTMLDOM PHP

    - by wandersolo
    I am trying to read a link from one page, print the url, go to that page, and read the link on the next page in the same location, print the url, go to that page (and so on...) All I'm doing is reading the url and passing it as an argument to the get_links() method until there are no more links. This is my code but it throws a Fatal error: Call to a member function find() on a non-object. Anyone know what's wrong? <?php $mainPage = 'https://www.bu.edu/link/bin/uiscgi_studentlink.pl/1346752597?ModuleName=univschr.pl&SearchOptionDesc=Class+Subject&SearchOptionCd=C&KeySem=20133&ViewSem=Fall+2012&Subject=&MtgDay=&MtgTime='; get_links($mainPage); function get_links($url) { $data = new simple_html_dom(); $data = file_get_html($url); $nodes = $data->find("input[type=hidden]"); $fURL=$data->find("/html/body/form"); $firstPart = $fURL[0]->action . '<br>'; foreach ($nodes as $node) { $val = $node->value; $name = $node->name; $name . '<br />'; $val . "<br />"; $str1 = $str1. "&" . $name . "=" . $val; } $fixStr1 = str_replace('&College', '?College', $str1); $fixStr2 = str_replace('Fall 2012', 'Fall+2012', $fixStr1); $fixStr3 = str_replace('Class Subject', 'Class+Subject', $fixStr2); $fixStr4 = $firstPart . $fixStr3; echo $nextPageURL = chop($fixStr4); get_links($nextPageURL); } ?>

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  • apt-get install and update fail

    - by sepehr
    I've got a problem with apt-get update and apt-get install ... commands . every time update or installing fails and errors are : Get:1 http://dl.google.com stable Release.gpg [198B] Ign http://dl.google.com/linux/chrome/deb/ stable/main Translation-en_US Get:2 http://dl.google.com stable Release [1,347B] Get:3 http://dl.google.com stable/main Packages [1,227B] Err http://32.repository.backtrack-linux.org revolution Release.gpg Could not connect to 32.repository.backtrack-linux.org:80 (37.221.173.214). - connect (110: Connection timed out) Err http://32.repository.backtrack-linux.org/ revolution/main Translation-en_US Unable to connect to 32.repository.backtrack-linux.org:http: Err http://32.repository.backtrack-linux.org/ revolution/microverse Translation-en_US Unable to connect to 32.repository.backtrack-linux.org:http: Err http://32.repository.backtrack-linux.org/ revolution/non-free Translation-en_US Unable to connect to 32.repository.backtrack-linux.org:http: Err http://32.repository.backtrack-linux.org/ revolution/testing Translation-en_US Unable to connect to 32.repository.backtrack-linux.org:http: Err http://all.repository.backtrack-linux.org revolution Release.gpg Could not connect to all.repository.backtrack-linux.org:80 (37.221.173.214). - connect (110: Connection timed out) Err http://all.repository.backtrack-linux.org/ revolution/main Translation-en_US Unable to connect to all.repository.backtrack-linux.org:http: Err http://all.repository.backtrack-linux.org/ revolution/microverse Translation-en_US Unable to connect to all.repository.backtrack-linux.org:http: Err http://all.repository.backtrack-linux.org/ revolution/non-free Translation-en_US Unable to connect to all.repository.backtrack-linux.org:http: Err http://all.repository.backtrack-linux.org/ revolution/testing Translation-en_US Unable to connect to all.repository.backtrack-linux.org:http: Ign http://32.repository.backtrack-linux.org revolution Release Ign http://all.repository.backtrack-linux.org revolution Release Ign http://32.repository.backtrack-linux.org revolution/main Packages Ign http://all.repository.backtrack-linux.org revolution/main Packages Ign http://32.repository.backtrack-linux.org revolution/microverse Packages Ign http://32.repository.backtrack-linux.org revolution/non-free Packages Ign http://32.repository.backtrack-linux.org revolution/testing Packages Ign http://all.repository.backtrack-linux.org revolution/microverse Packages Ign http://all.repository.backtrack-linux.org revolution/non-free Packages Ign http://all.repository.backtrack-linux.org revolution/testing Packages Ign http://32.repository.backtrack-linux.org revolution/main Packages Ign http://32.repository.backtrack-linux.org revolution/microverse Packages Ign http://32.repository.backtrack-linux.org revolution/non-free Packages Ign http://all.repository.backtrack-linux.org revolution/main Packages Ign http://all.repository.backtrack-linux.org revolution/microverse Packages Ign http://all.repository.backtrack-linux.org revolution/non-free Packages Ign http://all.repository.backtrack-linux.org revolution/testing Packages Err http://all.repository.backtrack-linux.org revolution/main Packages Unable to connect to all.repository.backtrack-linux.org:http: Err http://all.repository.backtrack-linux.org revolution/microverse Packages Unable to connect to all.repository.backtrack-linux.org:http: Ign http://32.repository.backtrack-linux.org revolution/testing Packages Err http://32.repository.backtrack-linux.org revolution/main Packages Unable to connect to 32.repository.backtrack-linux.org:http: Err http://32.repository.backtrack-linux.org revolution/microverse Packages Unable to connect to 32.repository.backtrack-linux.org:http: Err http://all.repository.backtrack-linux.org revolution/non-free Packages Unable to connect to all.repository.backtrack-linux.org:http: Err http://all.repository.backtrack-linux.org revolution/testing Packages Unable to connect to all.repository.backtrack-linux.org:http: Err http://32.repository.backtrack-linux.org revolution/non-free Packages Unable to connect to 32.repository.backtrack-linux.org:http: Err http://32.repository.backtrack-linux.org revolution/testing Packages Unable to connect to 32.repository.backtrack-linux.org:http: Err http://source.repository.backtrack-linux.org revolution Release.gpg Could not connect to source.repository.backtrack-linux.org:80 (37.221.173.214). - connect (110: Connection timed out) Err http://source.repository.backtrack-linux.org/ revolution/main Translation-en_US Unable to connect to source.repository.backtrack-linux.org:http: Err http://source.repository.backtrack-linux.org/ revolution/microverse Translation-en_US Unable to connect to source.repository.backtrack-linux.org:http: Err http://source.repository.backtrack-linux.org/ revolution/non-free Translation-en_US Unable to connect to source.repository.backtrack-linux.org:http: Err http://source.repository.backtrack-linux.org/ revolution/testing Translation-en_US Unable to connect to source.repository.backtrack-linux.org:http: Ign http://source.repository.backtrack-linux.org revolution Release Ign http://source.repository.backtrack-linux.org revolution/main Packages Ign http://source.repository.backtrack-linux.org revolution/microverse Packages Ign http://source.repository.backtrack-linux.org revolution/non-free Packages Ign http://source.repository.backtrack-linux.org revolution/testing Packages Ign http://source.repository.backtrack-linux.org revolution/main Packages Ign http://source.repository.backtrack-linux.org revolution/microverse Packages Ign http://source.repository.backtrack-linux.org revolution/non-free Packages Ign http://source.repository.backtrack-linux.org revolution/testing Packages Err http://source.repository.backtrack-linux.org revolution/main Packages Unable to connect to source.repository.backtrack-linux.org:http: Err http://source.repository.backtrack-linux.org revolution/microverse Packages Unable to connect to source.repository.backtrack-linux.org:http: Err http://source.repository.backtrack-linux.org revolution/non-free Packages Unable to connect to source.repository.backtrack-linux.org:http: Err http://source.repository.backtrack-linux.org revolution/testing Packages Unable to connect to source.repository.backtrack-linux.org:http: Fetched 2,772B in 1min 3s (44B/s) W: Failed to fetch http://all.repository.backtrack- \linux.org/dists/revolution/Release.gpg Could not connect to all.repository.backtrack-linux.org:80 (37.221.173.214). - connect (110: Connection timed out) W: Failed to fetch http://all.repository.backtrack-linux.org/dists/revolution/main/i18n/Translation-en_US.bz2 Unable to connect to all.repository.backtrack-linux.org:http: W: Failed to fetch http://all.repository.backtrack-linux.org/dists/revolution/microverse/i18n/Translation-en_US.bz2 Unable to connect to all.repository.backtrack-linux.org:http: W: Failed to fetch http://all.repository.backtrack-linux.org/dists/revolution/non-free/i18n/Translation-en_US.bz2 Unable to connect to all.repository.backtrack-linux.org:http: W: Failed to fetch http://all.repository.backtrack-linux.org/dists/revolution/testing/i18n/Translation-en_US.bz2 Unable to connect to all.repository.backtrack-linux.org:http: W: Failed to fetch http://32.repository.backtrack-linux.org/dists/revolution/Release.gpg Could not connect to 32.repository.backtrack-linux.org:80 (37.221.173.214). - connect (110: Connection timed out) W: Failed to fetch http://32.repository.backtrack-linux.org/dists/revolution/main/i18n/Translation-en_US.bz2 Unable to connect to 32.repository.backtrack-linux.org:http: W: Failed to fetch http://32.repository.backtrack-linux.org/dists/revolution/microverse/i18n/Translation-en_US.bz2 Unable to connect to 32.repository.backtrack-linux.org:http: W: Failed to fetch http://32.repository.backtrack-linux.org/dists/revolution/non-free/i18n/Translation-en_US.bz2 Unable to connect to 32.repository.backtrack-linux.org:http: W: Failed to fetch http://32.repository.backtrack-linux.org/dists/revolution/testing/i18n/Translation-en_US.bz2 Unable to connect to 32.repository.backtrack-linux.org:http: W: Failed to fetch http://source.repository.backtrack-linux.org/dists/revolution/Release.gpg Could not connect to source.repository.backtrack-linux.org:80 (37.221.173.214). - connect (110: Connection timed out) W: Failed to fetch http://source.repository.backtrack-linux.org/dists/revolution/main/i18n/Translation-en_US.bz2 Unable to connect to source.repository.backtrack-linux.org:http: W: Failed to fetch http://source.repository.backtrack-linux.org/dists/revolution/microverse/i18n/Translation-en_US.bz2 Unable to connect to source.repository.backtrack-linux.org:http: W: Failed to fetch http://source.repository.backtrack-linux.org/dists/revolution/non-free/i18n/Translation-en_US.bz2 Unable to connect to source.repository.backtrack-linux.org:http: W: Failed to fetch http://source.repository.backtrack-linux.org/dists/revolution/testing/i18n/Translation-en_US.bz2 Unable to connect to source.repository.backtrack-linux.org:http: W: Failed to fetch http://32.repository.backtrack-linux.org/dists/revolution/main/binary-i386/Packages.gz Unable to connect to 32.repository.backtrack-linux.org:http: W: Failed to fetch http://32.repository.backtrack-linux.org/dists/revolution/microverse/binary-i386/Packages.gz Unable to connect to 32.repository.backtrack-linux.org:http: W: Failed to fetch http://32.repository.backtrack-linux.org/dists/revolution/non-free/binary-i386/Packages.gz Unable to connect to 32.repository.backtrack-linux.org:http: W: Failed to fetch http://all.repository.backtrack-linux.org/dists/revolution/main/binary-i386/Packages.gz Unable to connect to all.repository.backtrack-linux.org:http: W: Failed to fetch http://all.repository.backtrack-linux.org/dists/revolution/microverse/binary-i386/Packages.gz Unable to connect to all.repository.backtrack-linux.org:http: W: Failed to fetch http://all.repository.backtrack-linux.org/dists/revolution/non-free/binary-i386/Packages.gz Unable to connect to all.repository.backtrack-linux.org:http: W: Failed to fetch http://all.repository.backtrack-linux.org/dists/revolution/testing/binary-i386/Packages.gz Unable to connect to all.repository.backtrack-linux.org:http: W: Failed to fetch http://32.repository.backtrack-linux.org/dists/revolution/testing/binary-i386/Packages.gz Unable to connect to 32.repository.backtrack-linux.org:http: W: Failed to fetch http://source.repository.backtrack-linux.org/dists/revolution/main/binary-i386/Packages.gz Unable to connect to source.repository.backtrack-linux.org:http: W: Failed to fetch http://source.repository.backtrack-linux.org/dists/revolution/microverse/binary-i386/Packages.gz Unable to connect to source.repository.backtrack-linux.org:http: W: Failed to fetch http://source.repository.backtrack-linux.org/dists/revolution/non-free/binary-i386/Packages.gz Unable to connect to source.repository.backtrack-linux.org:http: W: Failed to fetch http://source.repository.backtrack-linux.org/dists/revolution/testing/binary-i386/Packages.gz Unable to connect to source.repository.backtrack-linux.org:http: E: Some index files failed to download, they have been ignored, or old ones used instead. I Don't know how to get out of this ! I want to install RPM and YUM package on my backtrack ! I also searched over internet for answer . in backtrack forums or any other sites or weblogs i could'nt find a good answer ! can anyone help ??

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  • Make curl download using non-Privacy extension IPv6 address?

    - by Azendale
    I currently use net.ipv6.conf.all.use_tempaddr=2 to get IPv6 privacy addresses (which have a random host part are regenerated a couple times a day). I need dynamic DNS because the computer is connected to different networks and that changes the network part of the address. I'm using curl to download a dynamic DNS url and want it to use the Non-random address that uses my MAC. How can I make curl prefer the non-privacy address?

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  • Visual Studio 2010 Beta 2 Startup Failures

    - by Rick Strahl
    I’ve been working with VS 2010 Beta 2 for a while now and while it works Ok most of the time it seems the environment is very, very fragile when it comes to crashes and installed packages. Specifically I’ve been working just fine for days, then when VS 2010 crashes it will not re-start. Instead I get the good old Application cannot start dialog: Other failures I’ve seen bring forth other just as useful dialogs with information overload like Operation cannot be performed which for me specifically happens when trying to compile any project. After a bit of digging around and a post to Microsoft Connect the solution boils down to resetting the VS.NET environment. The Application Cannot Start issue stems from a package load failure of some sort, so the work around for this is typically: c:\program files\Visual Studio 2010\Common7\IDE\devenv.exe /ResetSkipPkgs In most cases that should do the trick. If it doesn’t and the error doesn’t go away the more drastic: c:\program files\Visual Studio 2010\Common7\IDE\devenv.exe /ResetSettings is required which resets all settings in VS to its installation defaults. Between these two I’ve always been able to get VS to startup and run properly. BTW it’s handy to keep a list of command line options for Visual Studio around: http://msdn.microsoft.com/en-us/library/xee0c8y7%28VS.100%29.aspx Note that the /? option in VS 2010 doesn’t display all the options available but rather displays the ‘demo version’ message instead, so the above should be helpful. Also note that unless you install Visual C++ the Visual Studio Command Prompt icon is not automatically installed so you may have to navigate manually to the appropriate folder above. Cannot Build Failures If you get the Cannot compile error dialog, there is another thing that have worked for me: Change your project build target from Debug to Release (or whatever – just change it) and compile again. If that doesn’t work doing the reset steps above will do it for me. It appears this failure comes from some sort of interference of other versions of Visual Studio installed on the system and running another version first. Resetting the build target explicitly seems to reset the build providers to a normalized state so that things work in many cases. But not all. Worst case – resetting settings will do it. The bottom line for working in VS 2010 has been – don’t get too attached to your custom settings as they will get blown away quite a bit. I’ve probably been through 20 or more of these VS resets although I’ve been working with it quite a bit on an internal project. It’s kind of frustrating to see this kind of high level instability in a Beta 2 product which is supposedly the last public beta they will put out. On the other hand this beta has been otherwise rather stable and performance is roughly equivalent to VS 2008. Although I mention the crash above – crashes I’ve seen have been relatively rare and no more frequent than in VS 2008 it seems. Given the drastic UI changes in VS 2010 (using WPF for the shell and editor) I’m actually impressed that the product is as stable as it is at this point. Also I was seriously worried about text quality going to a WPF model, but thankfully WPF 4.0 addresses the blurry text issue with native font rendering to render text on non-cleartype enabled systems crisply. Anyway I hope that these notes are helpful to some of you playing around with the beta and running into problems. Hopefully you won’t need them :-}© Rick Strahl, West Wind Technologies, 2005-2010

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  • ICMP Redirect Theory VS. Application

    - by joeqwerty
    I'm trying to watch ICMP redirects in a lab using Cisco Packet Tracer (version 5.3.2) and I'm not seeing them, which leads me to believe that either my lab configuration isn't correct or my understanding of ICMP redirects isn't correct or that Packet Tracer doesn't support/use ICMP redirects. Here's what I believe to be true regarding ICMP redirects: Routers send ICMP redirects when all of these conditions are met: The interface on which the packet comes into the router is the same interface on which the packet gets routed out. The subnet or network of the source IP address is on the same subnet or network of the next-hop IP address of the routed packet. The datagram is not source-routed. The router kernel is configured to send redirects. I have the lab set up in Cisco Packet Tracer as displayed in the image and would expect to see an ICMP redirect from Router1 when pinging from PC1 to PC3. I'm not seeing the ICMP redirect and it looks like Router1 is actually routing all of the packets via Router2. I have IP ICMP debugging enabled on Router1 (and Router2) and I'm not seeing any ICMP redirect activity in either console. I'm also not seeing a route to the PC3 network in the routing table on PC1, which I think confirms that the ICMP redirect is not occurring. I'm using only static routing on Routers 1 and 2. Is my understanding of ICMP redirects incorrect, or is there a problem with my lab configuration or does Packet Tracer not support/use ICMP redirects?

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  • Installing MySQL without root access

    - by vinay
    I am trying to install MySQL without root permissions. I ran through the following steps: Download MySQL Community Server 5.5.8 Linux - Generic Compressed TAR Archive Unpack it, for example to: /home/martin/mysql Create a my.cnf file in your home directory. The file contents should be: [server] user=martin basedir=/home/martin/mysql datadir=/home/martin/sql_data socket=/home/martin/socket port=3666 Go to the /home/martin/mysql directory and execute: ./scripts/mysql_install_db --defaults-file=~/my.cnf --user=martin --basedir=/home/martin/mysql --datadir=/home/martin/sql_data --socket=/home/martin/socket Your MySQL server is ready. Start it with this command: ./bin/mysqld_safe --defaults-file=~/my.cnf & When I try to change the password of MySQL it gives the error: Cannot connect to mysql server through socket '/tmp/mysql.sock' How can I change this path and see whether the mysql.sock is created or not?

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  • Hosting a javascript api file for third party sites the way sharethis, uservoice, analytics do it.

    - by Dayson
    I'm preparing to launch a service soon which will provide third party websites a widget. The widget requires my javascript file in the website's code. Exactly the same way services like analytics, uservoice, sharethis, getclicky, etc provide you with a javascript snippet to add to your page. Therefore, my javascript file is going to be hotlinked by tons of websites which possibly receive a lot of requests too. I need advice/opinions on the following aspects: What's the right location for hosting this file? Should I use a sub-domain for it? I was thinking of something like http://api.myservice.com/js/foo.js . Remember, once websites start embedding this file, its location CANNOT change under any circumstances. Right now we can afford just one dedicated server. So I have minified my file, enabled gzip and plan to use some good cache control headers through apache. Also, in the near future when the requests pickup, I will use a http proxy like Varnish. Is this a good plan for the near future? Should I be considering a CDN in the future (since we can't afford it now)? If so how do I make sure we're prepared to migrate to it without breaking services. Pros/Cons of moving just this file to a CDN? Also, since its just one javascript file(50kb), any affordable CDN so we could consider it in the beginning itself? Any other word of advice I could use? Anything I shouldn't overlook at this stage which I would regret later? (both in terms of server + javascript ajax limitations) Thanks in advance.

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  • AWS VPN Tunnel going down without traffic

    - by Asfura
    I managed to setup a site-to-site VPN connection from Amazon VPC to a company's network, and after a lot of configuration it was working fine, but now i realized that the VPN tunnel is DOWN every time there's no traffic going trough for a couple minutes. The only way that i have found to generate traffic is to reach the amazon instance from the company's network and then the tunnel goes up again. I had a cronjob doing ping every minute, but i think it should have a keepalive option somewhere, or at least a log file of the tunnels to find out what's going on. Any ideas to keep the tunnel up and/or bring it up from amazon? The firewall is a Checkpoint R75.20, it only allows one tunnel at a time for the same subnet, so i cant have both tunnels active. Thank you, any questions just ask. EDIT I forgot to add, the ping keepalive was working great (maybe generating a bit of traffic, but nothing to worry about), the connection dropped because i had to restart the instance, and it that little time it dropped me.

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  • Can I run a mix of static addressing and NAT?

    - by aroth
    Let's say that an ISP offers a plan with 5 static IP addresses, but I have more than 5 devices, many of which (such as a networked printer, for instance) I do not want or need to have a static IP address. So the topography I'm planning goes something like: ISP -> Router -> Switch -> Computer (static address) -> Computer (static address) -> Printer (DHCP/NAT) -> Tv (DHCP/NAT) -> (...) -> Wireless Devices (DHCP/NAT) Generally speaking, is it possible to run a network like that? If not, then what sort of setup do I need so that I can assign static addresses just to the things that need them, and use DHCP/NAT for everything else? Also, what internal networking devices will consume a static IP address? I'm pretty sure the router will, correct? Does the switch also?

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  • What is the best answer for: "my Internet is not working"?

    - by Maciek Sawicki
    Hi, I look for work in IT Support. One of interview questions is: what would you first say if user call You and tell my Internet is not working? I think about it a lot and still don't know what is correct answerer nor what answer my future employer expects. My choice would be something like: What part of Internet? (but more polite). For example I could ask for opening web page that works on my PC. Please give only serious answers. If You want BOFH or "The website is down" style answers I can create separate question for that.

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  • What is the best answer for: "my Internet is not working"?

    - by Maciek Sawicki
    Hi, I look for work in IT Support. One of interview questions is: what would you first say if user call You and tell my Internet is not working? I think about it a lot and still don't know what is correct answerer nor what answer my future employer expects. My choice would be something like: What part of Internet? (but more polite). For example I could ask for opening web page that works on my PC. Please give only serious answers. If You want BOFH or "The website is down" style answers I can create separate question for that.

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  • Eclipse And Linux: Keyboard unusable after gnome-screen-saver

    - by martijn-courteaux
    Hi, I know this is not programming related. But I can't find any topics on Google or UbuntuForums. So the problem is: When gnome-screensaver starts on the moment Eclipse has the focus and I wake up again my laptop, Eclipse doesn't listen to keyboard-events. To solve this I have to change the focus to another program and then back to Eclipse. Than it works again. This isn't a real problem, but it would be nice if someone can solve it. Thanks

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  • Centos 6.2 Fresh 'Basic Server' install networking issues

    - by RWC
    I've had a /29 provisioned on a network port for a server and am trying to at least configure the machine so I can ssh into it. It's Centos 6.2 x64 with the Basic Server install. Currently not able to ping gateway or any address for that matter. For reference: Default Interface: em2 Network ID: 66.*.*.0/29 Gateway: 66.*.*.1 Broadcast: 66.*.*.7 Please see my following configs: /etc/sysconfig/network-scripts/ifcfg-em2 DEVICE=em2 NM_CONTROLLED=yes ONBOOT=yes HWADDR=Not Important TYPE=Ethernet BOOTPROTO=none IPADDR=66.*.*.2 PREFIX=29 DNS1=8.8.8.8 DNS2=8.8.4.4 DEFROUTE=yes IPV4_FAILURE_FATAL=yes IPV6INIT=no NAME="System em2" NETMASK=255.255.255.248 USERCTL=no $: route -n Destination // Gateway // Genmask // Flags // Metric // Ref // Use // Iface 66.*.*.0 0.0.0.0 255.255.255.248 U 0 0 0 em2 169.254.0.0 0.0.0.0 255.255.0.0 U 0 1003 0 em2 0.0.0.0 66.*.*.1 0.0.0.0 UG 0 0 0 em2 $: route Destination // Gateway // Genmask // Flags // Metric // Ref // Use // Iface 66.*.*.0 * 255.255.255.248 U 0 0 0 em2 link-local * 255.255.0.0 U 0 1003 0 em2 default 66.*.*.1 0.0.0.0 UG 0 0 0 em2 $: cat /etc/sysconfig/network NETWORKING=yes HOSTNAME=excalibur.domain.com GATEWAY=66.*.*.1 Keep in mind that I cannot even currently ping the gateway which is quite confusing for me. My /etc/hosts are configured correctly with the *.2 address. I'm not concerned with getting all of the addresses on the /29 up and running yet, just one so I can at least ssh in. Thanks! Edit: Adding in ifconfig. $: ifconfig em2 Link encap:Ethernet HWaddr XX:XX:XX:XX:XX:XX inet addr:66.*.*.2 Bcat:66.*.*.7 Mask:255.255.255.248 inet6 addr: UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:5536 errors:0 dropped:0 overruns:0 frame:0 TX packets:10 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:2599469 (2.4 MiB) TX bytes: 748 (748.0 b) Interrupt:48 Memory:dc000000-dc012800 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:34 errors:0 etc etc

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  • Run Flyff without elevating user to Admin or requiring Admin Password

    - by AnonJr
    Bottom Line: I need to set up one game on my little sister's laptop to run without requiring an admin password/account. Its the only game that seems to insist on it... so far. Detailed Version: I set up my 14-year-old sister as a regular user on her Windows 7 Home Premium laptop, and almost everything has been fine - until she found a new game (Flyff) that doesn't seem to want to run without an Admin Password (or being logged in as an Admin). For what should be obvious reasons, I'm not going to make her an Admin. or give her the Admin password (which she swears she'll only use to run this game... anyone else buying that? Bueller?) Also, the parents aren't admins on her laptop (they are on their own, but that's another discussion for another day) and I'm not going to set them up as one as I know from past experience that the 3rd time my sister asks them to put in their password, they'll just tell her what it is - at which point I might as well as have just set her up as an admin from the outset. This is a Win7 Home Premium (64-bit, but I doubt that makes a difference) laptop, so using GPEdit is out. I also tried an answer provided in a related (but less specific) question. The app has read/write permissions for its folder in Program Files (x86), yet that doesn't seem to make a difference. I have not yet dug through the registry as mentioned in another answer to the aforementioned question. Just to be thorough, I have checked the "Run as Admin" option on the shortcut's properties to no avail. Am I missing something? Addendum 2010-11-11: Re-Checked permissions as per Joel's answer, and it didn't make a difference. Followed Jane T's suggestion (and Aeo's second) and created a "Games" folder outside Program Files, installing the game there - and making sure regular users had all the permissions they would need. No joy. After the latter of the above two changes, it occurred to me that it may be a UAC issue, so for kicks I turned off UAC - still the damn message. Last item noted: could it be a result of the publisher not being specified/verified? I've been taking a closer look at the error message and it occurred to me that the missing/unverified publisher info could have been the problem all along... Correct me if I'm wrong, but if that's the case, that means there's nothing I can do short of giving her some sort of Admin privileges (i.e. elevating her account, or giving her the password to a separate Admin account) or giving Mom an Admin account.

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  • The use of Test-Driven Development in Non-Greenfield Projects?

    - by JHarley1
    So here is a question for you, having read some great answers to questions such as "Test-Driven Development - Convince Me". So my question is: "Can Test-Driven Development be used effectively on non-Greenfield projects?" To specify: I would really like to know if people have had experience in using TDD in projects where there was already non-TDD elements present? And the problems that they then faced.

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  • Announcing the Winnipeg VS.NET 2012 Community Launch Event!

    - by D'Arcy Lussier
    Back in May 2010 the local Winnipeg technical community got together and put on a launch event for VS.NET 2010. That event was such a good time that we’re doing it again this year for the VS.NET 2012 launch! On December 6th, the Winnipeg .NET User Group is hosting a full day VS.NET 2012 Community Launch Event at the Imax theatre in Portage Place! We have 4 sessions planned covering dev tools, ALM/TFS, web development, and cloud development, presented by Dylan Smith, Tyler Doerksen, and myself. You can get all the details and register on our Eventbrite site: http://wpgvsnet2012launch.eventbrite.ca/ I’ve included the details below as well for convenience: Winnipeg VS.NET 2012 Community Launch Event Join us for a full day of sessions highlighting the new features and capabilities of Visual Studio .NET 2012 and the .NET 4.5 Framework! Hosted by the Winnipeg .NET User Group, this community event is FREE thanks to the generous support from our event sponsors: Imaginet Online Business Systems Prairie Developer Conference Event Details When: Thursday, Decemer 6th from 8:00 AM - 4:00 PM Where: IMAX Theatre, Portage Place Cost: *FREE!* Agenda 8:00 - 9:00 Continental Breakfast and Registration 9:00 - 9:15 Welcome 9:15 - 10:30 End-To-End Application Lifecycle Management with TFS 2012 10:30 - 10:45 Break 10:45 - 12:00 Improving Developer Productivity with Visual Studio 2012 12:00 - 1:00 Lunch Break (Lunch Not Provided) 1:00 - 2:15 Web Development in Visual Studio 2012 and .NET 4.5 2:15 - 2:30  Break 2:30 - 3:45 Microsoft Cloud Development with Azure and Visual Studio 2012 3:45 - 4:00 Prizes and Thanks Session Abstracts End-To-End Application Lifecycle Management with TFS 2012 Dylan Smith, Imaginet In this session we'll walk through the application development lifecycle from end-to-end and see how some of the new capabilities in TFS 2012 help streamline the software delivery process. There are some exciting new capabilities around Agile Project Management, Gathering Feedback, Code Reviews, Unit Testing, Version Control, Storyboarding, etc. During this session we’ll follow a fictional software development team through the process of planning, developing, testing, and deployment focusing on where the new functionality in VS/TFS 2012 fits in to make teams more effective. Improving Developer Productivity with Visual Studio 2012 Dylan Smith, Imaginet Microsoft Visual Studio 2012 enables developers to take full advantage of the capability of Windows using the skills and technologies developers already know and love to deliver exceptional and compelling apps.  Whether working individually or in a small, medium or large development team Visual Studio 2012 sets a new standard for development tools, helping teams deliver superior results for their customers that help set them apart from their competitors.  In this session we’ll walk through new features in Visual Studio 2012 specifically focusing on how these improve Developer Productivity. Web Development in Visual Studio 2012 and .NET 4.5 D’Arcy Lussier, Online Business Systems It’s an exciting time to be a web developer in the Microsoft ecosystem! The launch of Visual Studio 2012 and .NET 4.5 brings new tooling and features, and the ASP.NET team is continually releasing updates for MVC, SignalR, Web API, and other platform features. In this session we’ll take a tour of the new features and technologies available for Microsoft web developers here in 2012! Microsoft Cloud Development with Azure and Visual Studio 2012 Tyler Doerksen, Imaginet Microsoft’s public cloud platform is nearing its third year of public availability, supporting web site/service hosting, storage, relational databases, virtual machines, virtual networks and much more. Windows Azure provides both power and flexibility.  But to capture this power you need to have the right tools!  This session will demonstrate the primary ways you can harness Windows Azure with the .NET platform.  We’ll explain cloud service development, packaging, deployment, testing and show how Visual Studio 2012 with the Windows Azure SDK and other Microsoft tools can be used to develop for and manage Windows Azure.Harness the power of the cloud from the comfort of Visual Studio 2012!

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  • Website deployment - managing uploaded content?

    - by Legion
    I'm a programmer by trade, "server administrator" by company necessity. We're looking at dumping the old painful "update site by FTP upload" style of deployment. Having the webserver check out the latest code base from version control into a folder and having a "current" symlink point to the latest checkout (allowing for easily stepping back to an older version by changing the symlink) seems to be the way we want to go. But I have a question: what's a good practice for dealing with user-uploaded content? This stuff isn't in version control. I have a couple of ideas for dealing with this, but what is the smart, accepted practice?

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  • Managing an application across multiple servers, or PXE vs cfEngine/Chef/Puppet

    - by matt
    We have an application that is running on a few (5 or so and will grow) boxes. The hardware is identical in all the machines, and ideally the software would be as well. I have been managing them by hand up until now, and don't want to anymore (static ip addresses, disabling all necessary services, installing required packages...) . Can anyone balance the pros and cons of the following options, or suggest something more intelligent? 1: Individually install centos on all the boxes and manage the configs with chef/cfengine/puppet. This would be good, as I have wanted an excuse to learn to use one of applications, but I don't know if this is actually the best solution. 2: Make one box perfect and image it. Serve the image over PXE and whenever I want to make modifications, I can just reboot the boxes from a new image. How do cluster guys normally handle things like having mac addresses in the /etc/sysconfig/network-scripts/ifcfg* files? We use infiniband as well, and it also refuses to start if the hwaddr is wrong. Can these be correctly generated at boot? I'm leaning towards the PXE solution, but I think monitoring with munin or nagios will be a little more complicated with this. Anyone have experience with this type of problem? All the servers have SSDs in them and are fast and powerful. Thanks, matt.

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