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• Installing the Apple Root Certificate Authority on CentOS CLI

  - by Daniel Hollands

  I could be barking up the wrong tree here, but I'm looking for help on installing Apple's Root certificate (http://www.apple.com/certificateauthority/) on a CentOS server via the command line - which I need to send messages to their APNS system. The code I'm using for this purpose is a variation on this: https://github.com/jPaolantonio/SimplePush/blob/master/simplepush.php - which works perfectly well on a Windows server, but as soon as we try to use it on a CentOS one, it falls over. We're lead to believe this has something to do with not having the CA installed on our CentOS box - but all efforts to do so have failed. As the CentOS server is headless, we need the ability to do this via the commandline. Can someone help?

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• Need help with ruby radiant cms

  - by AnimalCode

  I have some hidden pages like this: /staff John Bob Mike In all this pages i have extended content, like photo, bio and additional info. I make this, to have logical structure and quick edit without editing radiant code. My question is, how i can with base radius functional get access to this pages in this code: <r:find url="/staff"> <r:children:each by="title" order="asc"> <r:title /> </r:children:each> </r:find>

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• Download office document without the web server trying to render it

  - by Dan Revell

  I'm trying to download an InfoPath template that's hosted on SharePoint. If I hit the url in internet explorer it asks me where to save it and I get the correct file on my disk. If I try to do this programmatically with WebClient or HttpWebRequest then I get HTML back instead. How can I make my request so that the web server returns the actual xsn file and doesn't try to render it in html. If internet explorer can do this then it's logical to think that I can too. I've tried setting the Accept property of the request to application/x-microsoft-InfoPathFormTemplate but that hasn't helped. It was a shot in the dark.

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• Permission to see the expandable list of ISA Server 2006

  - by Hossein Mobasher

  I am working on ISA Server 2006 in Windows Server. I want to add some policy rules to my server, I followed this link. But It points to In the Microsoft Internet Security and Acceleration Server 2006 management console, expand the array name, and then click the Firewall Policy node. When I open the ISA Server 2006 Management Console, I can not show the expand list, how can I force ISA to show the expandable tree to start Firewall Policy? Could any one please help me to do this ? Note : I have administrator permission for my account. Thanks in advance :)

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• Learning Objective-C 2.0 and ASP.NET 4.0 simultaneously?

  - by Sahat

  (HOBBY) I own a Macbook Pro and iPod Touch so developing iPhone/iPod/iPad apps seems like a logical thing to do in order to get some experience in the programming field. Besides I want to write a new application similar to the Capsuleer (Character skills monitor app for EVE Online MMO) but with more features. It's something I'd love to have on my own iPod Touch and I am sure other people will welcome a new EVE Online app for their iPhone or iPod Touch. (CAREER) I want to learn ASP.NET (and possibly Silverlight later on) for my potential future job. I plan to work in the .NET field, so it's a good idea for me to start learning C# and ASP.NET ASAP. Is it a good idea to learn completely unrelated technologies at the same time? Or would it be better to learn one thing at a time? Objective-C first, and ASP.NET second. Or vice versa. Thanks, Sahat

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• How to increment a value using a C-Preprocessor in Objective-C?

  - by mystify

  Example: I try to do this: static NSInteger stepNum = 1; #define METHODNAME(i) -(void)step##i #define STEP METHODNAME(stepNum++) @implementation Test STEP { // do stuff... [self nextFrame:@selector(step2) afterDelay:1]; } STEP { // do stuff... [self nextFrame:@selector(step3) afterDelay:1]; } STEP { // do stuff... [self nextFrame:@selector(step4) afterDelay:1]; } // ... When building, Xcode complains that it can't increment stepNum. This seems logical to me, because at this time the code is not "alive" and this pre-processing substitution stuff happens before actually compiling the source code. Is there another way I could have an variable be incremented on every usage of STEP macro, the easy way?

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• How do I catalog files on several external hard drives that I want to store off-line? OSX

  - by raudi

  My partner, an artist, has more than 10 external hardisks both USB and firewire and every 2-3 months a new one has to be added (She's working with videos and pictures) currently its 10TB and growing so too much for a affordable NAS. Right now the files are not indexed and I think can not be searched with spotlight because not all drives can be connected at the same time. So if she wants to search for a file, she has to guess which disk/disks (based mostly on the date) and then search several drives. Now I'm looking for a solution to index/catalog the drives, something like GentibusCD Cathy Disclib (all these solutions are unfortunately Windows only) Is there any software for OSX that will catalog all the hard drives, so she can search the catalog, find the files, and get the ID of the disk / disk name that has the content? Preferably something with a GUI so my partner can also use it easily Preferably with Thumbnails for pictures/videos (But even an equivalent to "tree /F /A" would be better than nothing)

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• Tracking the linux config with git: how?

  - by Pierre

  I'd like to track my linux configurations with git. My idea is to have a branch for each server. /etc is not the only one directory to be tracked (I won't git init in '/etc' ) As far as I could see, it is possible to init a git for a distant directory. I tried this: # mkdir -p /git/.git # cd /git # git --work-tree=/ --git-dir=/git/.git init Initialized empty Git repository in /git/.git/ 1) Creating a new branch before everything is not possible # git branch server1 fatal: Not a valid object name: 'HEAD'. 2) adding a file in master/HEAD is not possible # touch README.md # git add README.md fatal: Unable to create '//.git/index.lock': No such file or directory how should I properly setup git to track my system-config ? Thanks. P.

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• Why do we still have to use drive letters to identify file systems?

  - by Charles E. Grant

  A friend has run into a problem where they installed Windows 7 from an external drive, and the internal boot drive is now assigned to H:. Theoretically this shouldn't cause problems because there are programming interfaces for getting the drive letter for the system drive. In practice though, there are quite a few programs that assume that C: is the only possible location for the system directories, and they refuse to run with the system directories on H:. That's not Microsoft's fault, but it's a pain none-the-less. The general consensus seems to be that a re-install, setting the internal boot drive to C:, is the only way to avoid fix these problems. UNIX-like systems display all file systems in a single unified directory tree and mostly seem to avoid problems like this. Is it possible to configure a Windows system without reference to drive letters, or does the importance of backwards compatibility mean that Windows will be working with drive letters from now until doomsday?

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• How do we know the correct moves of Tower of Hanoi?

  - by Saqib

  We know that: In case of iterative solution: Alternating between the smallest and the next-smallest disks, follow the steps for the appropriate case: For an even number of disks: make the legal move between pegs A and B make the legal move between pegs A and C make the legal move between pegs B and C repeat until complete For an odd number of disks: make the legal move between pegs A and C make the legal move between pegs A and B make the legal move between pegs B and C repeat until complete In case of recursive solution: To move n discs from peg A to peg C: move n-1 discs from A to B. This leaves disc n alone on peg A move disc n from A to C move n-1 discs from B to C so they sit on disc n Now the questions are: How did we get this two solutions? Only by intuition? Or by logical/mathematical computation? If computation, how?

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• Why my browsers display XML files as blank pages?

  - by n1313

  Every time I open an XML file, all I get is blank page instead of tag tree. The file itself is correct and loads okay, I can see it via View Source or in the Firebug. I've tried turning off all my addons and tried running Firefox in safe mode, but the problem was not solved. I'm guessing that I've messed up my configuration somehow and Firefox now tries to render XML files as HTML ones. I've tried googling, but with no success. Help, please? UPD: example file: http://lj.lain.ru/3/1273657698603.sample.xml Also I've noticed that somehow all of the browsers on the machine are now acting the same, so I'm changing the question accordingly

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• Oracle sequence but then in MS SQL Server

  - by Raymond

  In Oracle there is a mechanism to generate sequence numbers e.g.; CREATE SEQUENCE supplier_seq MINVALUE 1 MAXVALUE 999999999999999999999999999 START WITH 1 INCREMENT BY 1 CACHE 20; And then execute the statement supplier_seq.nextval to retrieve the next sequence number. How would you create the same functionality in MS SQL Server ? Edit: I'm not looking for ways to automaticly generate keys for table records. I need to generate a unique value that I can use as an (logical) ID for a process. So I need the exact functionality that Oracle provides.

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• Determine display or VNC session based on PID

  - by Daniel Kessler

  I frequently VNC into a server where we run many concurrent computationally intensive matlab processes. Sometimes, one of my processes misbehave, which I can see from top, but I have a hard time figuring out which VNC session it's running on, or more specifically, which display it's running on. Suppose I see that PID 8536 looks like a resource hog, and I want to investigate. Because it's a matlab session, I know there is likely an IDE open somewhere, and I want to check to see if anything important is happening before I kill it. We've solved this somewhat awkwardly in the past by identifying which PTY 8536 was launched from, then looking at a process tree to figure out things launched in that context, scrolling up, and seeing the VNC initialization. Seems like there must be a better way to go PID - X Display (or VNC Session).

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• How to make Subversion use Linux system accounts for authentication?

  - by Alejandro García Iglesias

  Hi all, I've set up a Ubuntu Server for Subversion with Apache/WebDAV interface to share repositories with other developers. My question is, how can I make Subversion use the linux system accounts for authentication? This would lead to very easy Subversion account management. Subversion with Apache/WebDAV is currently working with this configuration: Contents of /etc/apache2/mods-available/dav_svn.conf: <Location /svn> DAV svn SVNParentPath /home/svn SVNListParentPath On AuthType Basic AuthName "Subversion Repository" AuthUserFile /etc/apache2/dav_svn.passwd Require valid-user </Location> I have tried changing AuthUserFile /etc/apache2/dav_svn.passwd with AuthUserFile /etc/shadow with no success. This makes the server to respond with a error 500 internal server error. It's logical, why the Web service should have access to system authentication file? Thanks a lot in advance!

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• Disable link with the prototype observe method...

  - by enyo

  I want to create a link like this: <a href="http://example.com">text</a> and replace the behavior so that the link downloads the content with Ajax instead when clicking. It is important for me not to replace the href attribute (so copying the link still works). One solution would be to do: $('link').onclick = function() { return false; }; but I would like to use the .observe method. But this doesn't work: $('link').observe('click', function() { return false; }); (which is quite logical). Any ideas on how I could achieve this? Thanks.

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• Life Cycle Navigator?

  - by C.W.Holeman II

  In many environments the file system directory structure and naming conventions attempt to allow one to use a file manager to navigate the life cycle of a document. This overloading of functions makes it difficult for users to handle the complexity. A file browser is a tool that lets the user navigate among files located in a directory structure to find a specific file. Whereas, when given a specific file, a life cycle navigator is a tool that lets the user navigate its life cycle from source to published copy and across versions. Does a Life Cycle Navigator exit? I see a user pointing at an object: Left mouse button displays the document Right mouse button has a Life Cycle Navigator (LCN) The LCN displays a tree for a specific document within a file manger, for example: Published 3.2 Current 3.1 3.0 +2.x +1.x +Archived +All Source Draft 3.2 Current 3.1 3.0 +2.x +1.x +Archived +All +Work Flow +Properties Or from a command line: $ lcn x.pdf --open_source_document | my_favorite_editor $ lcn x.pdf --show_published_version_info $ lcn x.pdf --show_previous_publish_versions_info See also, Life Cycle Navigator.

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• Applications not installing due to unmet dependencies

  - by Vineet Sharma

  I was running Apache on Linode. I recently shifted to Lighttpd and removed apache, now whenever I try to install any application I get the following error. ivineet:~# apt-get install subversion Reading package lists... Done Building dependency tree Reading state information... Done You might want to run `apt-get -f install' to correct these: The following packages have unmet dependencies: libapache2-mod-php5: Depends: apache2-mpm-prefork (> 2.0.52) but it is not going to be installed or apache2-mpm-itk but it is not going to be installed subversion: Depends: libsvn1 (= 1.6.12dfsg-6) but it is not going to be installed E: Unmet dependencies. Try 'apt-get -f install' with no packages (or specify a solution). ivineet:~#

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• Exception Handling in MVP Passive View

  - by ilmatte

  Hello, I'm wondering what's the preferred way to manage exceptions in an MVP implemented with a Passive View. There's a discussion in my company about putting try/catch blocks in the presenter or only in the view. In my opinion the logical top level caller is the presenter (even if the actual one is the view). Moreover I can test the presenter and not the view. This is the reason why I prefer to define a method in the view interface: IView.ShowError(error) and invoke it from the catch blocks in the presenter: try { } catch (Exception exception) { ...log exception... view.ShowError("An error occurred") } In this way the developers of future views can safely forget to implement exception handling but the IView interface force them to implement a ShowError method. The drawback is that if I want to feel completely safe I need to add redundant try/catch blocks in the view. The other way would be to add try catch blocks only in the views and not introducing the showerror method in the view interface. What do you suggest?

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• Is it inefficient to have symbolic links to symbolic links?

  - by Ogre Psalm33

  We're setting up a series of Makefiles where we want to have a project-level include directory that will have symbolic links to sub-project-level include files. Many sub-project developers have chosen to have their include files also be symbolic links to yet another directory where the actual software is located. So my question is, is it inefficient to have a symbolic link to a symbolic link to another file (for, say, a C++ header that may be included dozens or more times during a compile)? Example directory tree: /project/include/ x_header1.h -> /project/src/csci_x/include/header1.h x_header2.h -> /project/src/csci_x/include/header2.h /project/src/csci_x/ include/ header1.h -> /project/src/csci_x/local_1/cxx/header1.h header2.h -> /project/src/csci_x/local_2/cxx/header2.h local_1/cxx/ module1.cpp header1.h local_2/cxx/ module2.cpp header2.h

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• iPhone UI: No edit button for UITableView, bad idea?

  - by Nic Hubbard

  I have a UITableViewController which lets the user drill down into different records. On the second level/view, the user can add and edit new records. But, I am not sure what to do, since the back button is on the top left, and I need to put the "Add" button on the top right, so there is no room (keeping to HIG) for the edit button, which would normally go where the back button is. (I am using a tab bar, so can't put it at the bottom.) Do you think that it is logical, to expect users to know to swipe to delete a record? Or, do I need to have an edit button? If I DO need an edit button, where should I put it if I am following HIG?

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• How to represent datetime of deifferent time zomes in C#

  - by Mohoch

  Hi. I have a .NET WebService (written in C#), that is supposed to serve people around the world. With each request I get the user's datetime in his own time zone with the format : "yyyy/MM/dd HH:mm ZZZZ". I have to convert the string to something representing the original date and time and specifying the time zone in GMT. I have to make some logical calculations and keep it in the database. The regular DateTime doe's not support this. it does not have a property specifying the time zone. When I try to convert my string into DateTime - it simply converts it to my local time. I do not want to keep my time in UTC, because I have some logic that has to run per user by his own time. Does anyone know a C# class that handles this? Thanks!

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• PHP script unable to email on OpenBSD Apache

  - by MattC

  I have a webserver running OpenBSD 4.7 and PHP 5.2.12 out of the ports tree. There is a small contact page that is supposed to send an email to a specific address. When I fill in the form using a web browser, it sends the AJAX request to the PHP page which claims it worked successfully but there is no email. The maillog is empty as well. I created a small php script that replicates this functionality and when I run it by hand using the "php -f" command, it sends an email without a problem. I think this has to do with being chrooted but I can't seem to get it to work. Furthermore, I can't seem to get PHP to log. I told it to log to /var/www/logs/php_errors.log and restarted but can't get it to send anything to the file. Does anyone have any tips for debugging these sort of things in OpenBSD?

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• Robocopy to copy only new folders and files

  - by Valery Shampal

  A task: To find all new files and subfolders under some root folder (let us say Documents) and to copy them to other disk (j: in this case) Command line used: robocopy c:\users\valery\documents j:\robocopy /XO /E /MAXAGE:20131030 /XD Result: A full folders tree created. Only new files copyed, as supposed. It's good A point is, that I do not want to create all subfolders on a target disk, if there are no new files in them. Results are exeptable, but there is a lot of work to go through all folders and to find new files, as well, as to understand, what subfolders are a new ones Regards, Valery

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• Where is the best place to put <script> tags in HTML markup?

  - by mipadi

  When embedding JavaScript in an HTML document, where is the best place to put the <script> tags and included JavaScript? I seem to recall that you are not supposed to place these in the <head> section, but placing at the beginning of the <body> section is bad, too, since the JavaScript will have to be parsed before the page is rendered completely (or something like that). This seems to leave the end of the <body> section as a logical place for <script> tags. So, where is the best place to put the <script> tags? (This question references this question, in which it was suggested that JavaScript function calls should be moved from <a> tags to <script> tags. I'm specifically using JQuery, but more general answers are also appropriate.)

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• How to block access to files in the current directory with .htaccess

  - by kfir

  I have a few private files in a public folder and I want to block access to them. For example lets say I have the following files tree: DictA FileA FileA FileB FileC I want to block access to FileB and FileA in the current directory and allow access to the FileA in the DictA directory. The first thing that came to mind was to use the FilesMatch directive as follows: <FilesMatch "^(?:FileA)|(?:FileB)$"> Deny from all </FilesMatch> The problem here is that FileA inside DictA will also be blocked, which is not what I wanted. I could override that by adding another .htaccess file to DictA but I would like to know if there is a solution which wont involve that. P.S: I can't move the private files to a separate folder.

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