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  • Apache mod_header rule to change all cookies to secure

    - by Supowski
    I would like to change all cookies to be secure and http-only. I works fine for one cookie, but doesn't work when multiple cookies are set in response. Apache mod_header rule should change cookies from: Set-Cookie cookie1=value; Path=/somePath Set-Cookie cookie2=value; Path=/somePath to Set-Cookie cookie1=value; Path=/somePath; Secure; Http-Only Set-Cookie cookie2=value; Path=/somePath; Secure; Http-Only I use mod_headers for it with following rule: Header edit Set-Cookie ^(.*)$ $1;Secure;HttpOnly It works fine when only one cookie is set, but if there is more than one, it just removes all the following and they are not set at all. Any help how to write mod_headers rule for multiple values? or the problem is in something else?

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  • How to show users the reason for a message being bounced or rejected by Postfix?

    - by Ross Bearman
    A user would like to be able to view a web page showing any emails that a Postfix server has either been unable to send, or unable to receive. For example if the user was supposed to receive an email from a third party but it hasn't arrived, they'd be able to check the web page and see a list of emails rejected by Postfix, along with a clear reason as to why. I've been unable to find an existing application that offers this functionality. Does anyone know of any, or is the best way forward to write a script that parses the log and display the results?

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  • Excel: How do I copy hyperlink address from one column of text to another column with different text?

    - by OfficeLackey
    I have a spreadsheet where column A displays names in a certain format. There are 200-odd names and each has a different hyperlink (which links to that person's web page). I want to reformat the name order so it is "Surname, Name" rather than "Name Surname" and retain the hyperlink in the newly formatted column. I have achieved "Surname, Name" easily by splitting the names into two columns (using LEFT and RIGHT formulae) - forename and surname - then I have a new column with a formula to return "Surname, Name." However, the hyperlinks are not in that new column and I need them. I don't want to do this manually, for obvious reasons. I cannot find a way of copying just hyperlinks from column A without copying the text from column A. So, effectively, what I need is some sort of macro to take, for example, the hyperlink from A2 and copy it to H2, with H2 still retaining the updated ordering of name. I don't have the knowledge to write this myself, so would appreciate solutions.

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  • How to "paint" the data layer of a CD using a CD drive?

    - by Jens
    I am looking for software to "paint" geometric shapes, dots or lines on the data layer of a writable CD (or DVD) using a standard drive. These do not have to be visible to the naked eye; I'd try to abuse the small dot size on the CD for some scientific measurements. I am aware of the "LightScribe" feature of some drives and that is not what I am looking for. Most of the software available is of course limited to write music or data, on does not offer the low-level "place a dot at this radius, this angle"-functionality. Is there something out there for me?

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  • What is involved with writing a lobby server?

    - by Kira
    So I'm writing a Chess matchmaking system based on a Lobby view with gaming rooms, general chat etc. So far I have a working prototype but I have big doubts regarding some things I did with the server. Writing a gaming lobby server is a new programming experience to me and so I don't have a clear nor precise programming model for it. I also couldn't find a paper that describes how it should work. I ordered "Java Network Programming 3rd edition" from Amazon and still waiting for shipment, hopefully I'll find some useful examples/information in this book. Meanwhile, I'd like to gather your opinions and see how you would handle some things so I can learn how to write a server correctly. Here are a few questions off the top of my head: (may be more will come) First, let's define what a server does. It's primary functionality is to hold TCP connections with clients, listen to the events they generate and dispatch them to the other players. But is there more to it than that? Should I use one thread per client? If so, 300 clients = 300 threads. Isn't that too much? What hardware is needed to support that? And how much bandwidth does a lobby consume then approx? What kind of data structure should be used to hold the clients' sockets? How do you protect it from concurrent modification (eg. a player enters or exists the lobby) when iterating through it to dispatch an event without hurting throughput? Is ConcurrentHashMap the correct answer here, or are there some techniques I should know? When a user enters the lobby, what mechanism would you use to transfer the state of the lobby to him? And while this is happening, where do the other events bubble up? Screenshot : http://imageshack.us/photo/my-images/695/sansrewyh.png/

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  • running more than one command line commands inside for loop

    - by klijo
    i have a folder containing images and i want to determine its Compression method used. So i would loop through the folder and do a grep Compression like this and note i have installed grep for windows for %f in (*.jpg) do identify -verbose "%f" | grep Compression >> info.txt However i need to write the file name and compression technique used so i modified the above command for %f in (*.jpg) do identify -verbose "%f" | grep Compression & echo "%f" & echo: >> info.txt But the problem is that i get a blank txt file. Could someone pleas help me.

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  • How to know how much detailed requirements should be?

    - by user1620696
    This doubt has to do with the requirements gathering phase of each iteration in one project based on agile methodologies. It arose because of the following situation: suppose I meet with my customer to gather the requirements and he says something like: "I need to be able to add, edit, remove and see details of my employees". That's fine, but how should we register this requirement? Should we simply write something like "the system must allow the user to manage employees", or should we be more specific writing for points The system must allow the user to add employees; The system must allow the user to see details of employees; The system must allow the user to edit employees; The system must allow the user to delete employees; Of course, this is just an example of a situation I was in doubt. The main point here is: how to know how much detailed I must be, and how to know what I should register? Are there strategies for dealing with these things? Thanks very much in advance!

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  • Trac/SVN to DVCS Migration

    - by quanticle
    The project I'm currently working on is using Trac, with SVN integration. It's worked great until now. Now, however, we've taken on some additional developers and we're running into issues with branching and merging. Because of this, I think a move to a distributed version control system is in order. The problem is that Trac is very closely integrated with the SVN repository. We have tight integration between the tickets and the revision numbers of code changes corresponding to those tickets. In addition we have a support wiki that has a lot of data that helps the tech. support team. Is there a way we can migrate to git or mercurial without losing the benefits of Trac? I've looked at the git plugin for Trac, and I'm unsure of how well it works. Has anyone here used it with a project that's been migrated from SVN? EDIT: I should note that the most important priority for us is maintaining the links between Trac tickets and the corresponding changesets in SVN. That's a tool that we use every day, and it provides an easy way to jump to code changes when reviewing tickets. Wiki migration would be nice to have, but if it's not possible, we can continue to run the old system whilst we write some kind of a one-off script to migrate the content.

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  • How can I make Bash (or Zsh) run a particular command before each entered command?

    - by Peeja
    I'd like to configure Bash to run a particular command before running each command line I enter at the prompt. Specifically, I'd like to tell Vim (which is running in another terminal) to write all open buffers, because in my workflow if anything's unsaved when I leave Vim it's a mistake. Is there an option for this in Bash? If not, is there an option in Zsh? (There is a readline-based solution that somewhat fits this problem on another question, but it feels a bit hacky. It'll take it as a last resort.)

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  • Windows network: deny file access to another user if file is currently open

    - by Steve
    Some users on my network are having difficulties saving files, because the file is open elsewhere. Let's say Lemuel wants to edit a file, but Bernice in the next office over is working on it. Lemuel opens, edits, and tries to save, but then gets a "no write access" error. Bernice chortles with glee (since earlier that week Lemuel stole her sandwich). Unfortunately, various softwares will not warn the user that they have opened a read-only file. Is there a way (in Windows) to limit file access to ONE user only, i.e. 777 for the first user to open the file, and 000 for all users after that? (Sorry for the Linux terminology but it gets my point across).

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  • Javascript widgets: do links count as SEO backlinks? [closed]

    - by j0nes
    Possible Duplicate: How good is it for SEO if you have a widget that lives on other sites? On my website I offer an option to let users embed information from my site with some kind of "homepage widget". If a user wants to embed it in his website, he basically has to add one line of Javascript to his HTML files like this: <script src="http://mysite.com/myscript.php?some_options_here"></script> Inside the widget, I export some content from my website and of course create a link back to my website. This is done in Javascript with document.write. document.writeln("My great exported content"); document.writeln('<a href="http://mysite.com?ref=widget>Check mysite.com</a>'); I have Google Analytics set up to track whether the links in there get clicked, and they do. Now I am asking myself if Google recognizes these links as valid backlinks from the embedding domain. I know that Googlebot can parse and execute Javascript, but I have not found any references whether these links also count as "normal" backlinks.

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  • How can I reduce the amount of time it takes to fully regression test an application ready for release?

    - by DrLazer
    An app I work on is being developed with a modified version of scrum. If you are not familiar with scrum, it's just an alternative approach to a more traditional watefall model, where a series of features are worked on for a set amount of time known as a sprint. The app is written in C# and makes use of WPF. We use Visual C# 2010 Express edition as an IDE. If we work on a sprint and add in a few new features, but do not plan to release until a further sprint is complete, then regression testing is not an issue as such. We just test the new features and give the app a good once over. However, if a release is planned that our customers can download - a full regression test is factored in. In the past this wasn't a big deal, it took 3 or 4 days and the devs simply fix up any bugs found in the regression phase, but now, as the app is getting larger and larger and incorporating more and more features, the regression is spanning out for weeks. I am interested in any methods that people know of or use that can decrease this time. At the moment the only ideas I have are to either start writing Unit Tests, which I have never fully tried out in a commercial environment, or to research the possibilty of any UI Automation API's or tools that would allow me to write a program to perform a series of batch tests. I know literally nothing about the possibilities of UI automation so any information would be valuable. I don't know that much about Unit testing either, how complicated can the tests be? Is it possible to get Unit tests to use the UI? Are there any other methods I should consider? Thanks for reading, and for any advice in advance.

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  • Migrating Identity Providers - specifying a new users password hash.

    - by Stephen Denne
    We'd like to switch Identity Provider (and Web Access Manager), and also the user directory we use, but would like to do so without users needing to change their password. We currently have the SSHA of the passwords. I'm expecting to write code to perform the migration. I don't mind how complex the code has to be, rather my concern is whether such a migration is possible at all. MS Active Directory would be our preferred user store, but I believe that it can not have new users set up in it with a particular password hash. Is that correct? What user directory stores can be populated with users already set up with a SSHA password? What Identity Provider and Access Management products work with those stores?

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  • Over 300 "NetBeans Platform for Beginners" Sold

    - by Geertjan
    I've noticed that the authors of "NetBeans Platform for Beginners" have started exposing the number of sales they have achieved. Below, notice the '304' (which will probably change quite quickly) at the lower left end of this screenshot: That's pretty good since the book has only existed for a few months and developers tend to share books they buy in PDF format. That probably means there are 300 teams of software developers around the world who are using the book, which is pretty awesome. (Though it would help the authors significantly, I'm sure, if individual developers on teams would buy the book, rather than sharing one between them. Come on, let's support these great authors so that they'll write more books like this.) Also note that there is a set of reviewer comments on the page above: Plus, the book is updated at the end of each month, so it continues to grow and improve from month to month, for free for everyone who has bought it. If you've read the book and want to contribute a review like the above, contact walternyland @ yahoo dot com. Great work, guys! For anyone out there who hasn't got it yet: https://leanpub.com/nbp4beginners

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  • Proper way to encapsulate a Shader into different modules

    - by y7haar
    I am planning to build a Shader system which can be accessed through different components/modules in C++. Each component has its own functionality like transform-relevated stuff (handle the MVP matrix, ...), texture handler, light calculation, etc... So here's an example: I would like to display an object which has a texture and a toon shading material applied and it should be moveable. So I could write ONE shading program that handles all 3 functionalities and they are accessed through 3 different components (texture-handler, toon-shading, transform). This means I have to take care of feeding a GLSL shader with different uniforms/attributes. This implies to know all necessary uniform locations and attribute locations, that the GLSL shader owns. And it would also necessary to provide different algorithms to calculate the value for each input variable. Similar functions would be grouped together in one component. A possible way would be, to wrap all shaders in a own definition file written in JSON/XML and parse that file in C++ to get all input members and create and compile the resulting GLSL. But maybe there is another way that is not so complex? So I'm searching for a way to build a system like that, but I'm not sure yet which is the best approach.

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  • Percona system tables corrupted.

    - by Anand Jeyahar
    I am having problems setting up mysql replication with a percona as server. accidentally, took a full dump from mysql and restored it on percona and then started,the replication. now when i stop slave and start slave, i am getting the error "[ERROR] Failed to open the relay log './s5-bin.000003' (relay_log_pos 2029993) 110103 9:15:59 [ERROR] Could not find target log during relay log initialization " But show local variables shows the relay_log variable as set in the cnf file.. But the relay-log variable is set to slave-relay-bin alright. I am able to start mysql as a service. But mysqld_safe fails with error "110103 9:19:39 [ERROR] /usr/sbin/mysqld: Can't create/write to file '/var/run/mysqld/mysqld.pid' (Errcode: 2) 110103 9:19:39 [ERROR] Can't start server: can't create PID file: No such file or directory " Am now lost as to what is the problem.

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  • Computer freeze at night

    - by matmat07
    Every night except one this week my laptop froze over night. I tried to check the event viewer, but there's no real help there. Tonight I'll do a memtest to check the RAM. And this shouldn't be a temperature issue since I can play game without any problem (Diablo 3, League of legend) Is there any diagnosys tool I could use. Maybe something that would write time down every minute so I know the precise time when it freeze? I have win7 and 8gb of RAM I installed myself Answer to comment:Asus N71JQ Unknown time, but it seems differents if I look at the last entry in the logs I have no information to tell you, that's why I ask for tool and not the solution. I usualy go to sleep after midnight, but I have AVG free edition as antivirus

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  • How do I develop database-utilizing application in an agile/test-driven-development way?

    - by user39019
    I want to add databases (traditional client/server RDBMS's like Mysql/Postgresql as opposed to NoSQL, or embedded databases) to my toolbox as a developer. I've been using SQLite for simpler projects with only 1 client, but now I want to do more complicated things (ie, db-backed web development). I usually like following agile and/or test-driven-development principles. I generally code in Perl or Python. Questions: How do I test my code such that each run of the test suite starts with a 'pristine' state? Do I run a separate instance of the database server every test? Do I use a temporary database? How do I design my tables/schema so that it is flexible with respect to changing requirements? Do I start with an ORM for my language? Or do I stick to manually coding SQL? One thing I don't find appealing is having to change more than one thing (say, the CREATE TABLE statement and associated crud statements) for one change, b/c that's error prone. On the other hand, I expect ORM's to be a low slower and harder to debug than raw SQL. What is the general strategy for migrating data between one version of the program and a newer one? Do I carefully write ALTER TABLE statements between each version, or do I dump the data and import fresh in the new version?

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  • How do you synchronise huge sparse files (VM disk images) between machines?

    - by chrisdew
    Is there a command, such as rsync, which can synchronise huge, sparse, files from one linux server to another? It is very important that the destination file remains sparse. It may be longer (but not bigger) than the drive which contains it. Only changed blocks should be sent across the wire. I have tried rsync, but got no joy. groups.google.com/group/mailing.unix.rsync/browse_thread/thread/94f39271980513d3 If I write a programme to do this, am I just reinventing the wheel? http://www.finalcog.com/synchronise-block-devices Thanks, Chris.

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  • Photos being copied all over the place

    - by plua
    We have a rather popular website with plenty of photos. Our whole business depends on our content - and the photos are important in this. We invest a lot of time, effort, and money into taking these pictures. On our website we have clear copyright notices, we have the website name and logo in the photos, and we have a Photo Licensing page which states the prices of licensing our photos. Despite all this, our photos are copied by personal and commercial websites alike. We really want to do something about this. We do not want them to take out the photos and leave it at that. We want them to pay for the usage, as we clearly state on our website. Now a few questions come to mind: Can we legally force them to pay right away? Or are we obligated to first write a "Cease and Desist" letter? Photos are used on websites throughout the world. Are there any worldwide rules for this? Has anybody experience with doing these things outside of their home country? Should we hire a lawyer in any country? Or could a local lawyer contact oversees companies directly?

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  • Mitigating the 'firesheep' attack at the network layer?

    - by pobk
    What are the sysadmin's thoughts on mitigating the 'firesheep' attack for servers they manage? Firesheep is a new firefox extension that allows anyone who installs it to sidejack session it can discover. It does it's discovery by sniffing packets on the network and looking for session cookies from known sites. It is relatively easy to write plugins for the extension to listen for cookies from additional sites. From a systems/network perspective, we've discussed the possibility of encrypting the whole site, but this introduces additional load on servers and screws with site-indexing, assets and general performance. One option we've investigated is to use our firewalls to do SSL Offload, but as I mentioned earlier, this would require all of the site to be encrypted. What's the general thoughts on protecting against this attack vector? I've asked a similar question on StackOverflow, however, it would be interesting to see what the systems engineers thought.

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  • Web Hosting Checklist

    - by Chris
    I am a web developer that is starting to look into hosting his own website. I would like to showcase my programming skills (PHP, MySQl, C#, Wordpress). My knowledge of languages I am OK with but the actually hosting site is where my knowledge starts to get a little shaky. I know the basics (bandwidth, sub-domains, re-write rules) but I would love your input, to help me formulate a check list of certain web-hosting services that I should be on the look-out for. Also I was wondering if there were any reliable hosting providers who give you the option to host both c# code-behinds and PHP code. As I would like to have two versions of my site, one in C# and one in PHP the hope is that if I need to look for another job this website will help me show possible employers my server side knowledge. I hope this is enough info, I did some researching online but found a bunch of unless articles and I've always have had luck on the StackExchange sites. So hopefully you, can help me. Thanks alot.

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  • Throwing and catching exceptions in the same function/method

    - by usr
    I've written a function that asks a user for input until user enters a positive integer (a natural number). Somebody said I shouldn't throw and catch exceptions in my function and should let the caller of my function handle them. I wonder what other developers think about this. I'm also probably misusing exceptions in the function. Here's the code in Java: private static int sideInput() { int side = 0; String input; Scanner scanner = new Scanner(System.in); do { System.out.print("Side length: "); input = scanner.nextLine(); try { side = Integer.parseInt(input); if (side <= 0) { // probably a misuse of exceptions throw new NumberFormatException(); } } catch (NumberFormatException numFormExc) { System.out.println("Invalid input. Enter a natural number."); } } while (side <= 0); return side; } I'm interested in two things: Should I let the caller worry about exceptions? The point of the function is that it nags the user until the user enters a natural number. Is the point of the function bad? I'm not talking about UI (user not being able to get out of the loop without proper input), but about looped input with exceptions handled. Would you say the throw statement (in this case) is a misuse of exceptions? I could easily create a flag for checking validity of the number and output the warning message based on that flag. But that would add more lines to the code and I think it's perfectly readable as it is. The thing is I often write a separate input function. If user has to input a number multiple times, I create a separate function for input that handles all formatting exceptions and limitations.

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  • Wifi won't connect to certain networks

    - by Dave M G
    As I write this, I'm in a coffee shop on my laptop, and I am trying to connect to the free wifi network they offer. Every time I select their network from the wifi applet drop down menu, it connects for a second and then disconnects. At the same time, I have my Android phone with me, and it connects to the coffee shop's network without problem. There are a couple of people around me also using the same network with no issues. I asked the staff to check and as far as they can tell there is no problem with their router or anything. I have tried rebooting, but it has not made a difference. I have double and triple checked that I am using the correct WEP password. As an added wrinkle, when I connect to another network, it seems to connect (although I can't use them because they are paid gateway services). So I'm able to ask this question now because I have tethered my laptop to my phone, but it's slow and a workaround, not a solution. All indications are that it's a problem with my computer against this one network. Why would that be and how can I fix it?

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  • Adding a new automatic number sequence

    - by Paul
    We write test case documents. In these documents, each test case is numbered. E.g. Foobar-UI-1 to Foobar-UI-23 or Foobar-Device-1 to Foobar-Device-87 I'd like to autonumber these. I don't think I want just a new numbered list format, I want something like the list of figures - where figures (or test case) can be defined anywhere in the doc with other headings and paragraphs between them, and I can insert a "List of figures" table at the beginning. So how do I do "test cases" and a "list of test-cases" table in the same way as figures work out of the box?

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