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  • Linux Best Practices

    - by Zac
    I'm a life-long Windows developer switching over to Linux for the first time, and I'm starting off with Ubuntu to ease the learning curve. My new laptop will primarily be a development machine: 6GB RAM, 320 GB HD. I'd like there to be 2 non-root users: (a) Development, which will always be me, and (b) Guest, for anyone else. I assume the root user is added by default, like System Administrator in Windows. (1) I'd like to mount /home to its own partition, but how does this work if I have two user accounts (Development and Guest)? Are there 2 separate /home directories, or do they get shared? Is it possible to allocate more space for Development and only a tiny bit of space for Guest in GRUB2? How?!?! (2) I'm assuming that its okay that all of my development tools (Eclipse & plugins, SVN, JUnit, ant, etc.) and Java will end up getting installed in non-/home directories such as /usr and /opt, but that my Eclipse/SVN workspace will live under my /home directory on a separate partition... any problems, issues, concerns with that? (3) As far as partitioning schemes, nothing too complicated, but not plain Jane either: Boot Partition, 512 MB, in case I want to install other OSes Ubuntu & non-/home file system, 187.5 GB Swap Partition, 12 GB = RAM x 2 /home Partition, 120 GB I don't have any bulky media data (I don't have music or video libraries, this is a lean and mean dev machine) so having 320 GB is like winning the lottery and not knowing what to do with all this space. I figured I'd give a little extra space to the OS/FS partition since I'll be running JEE containers locally and doing a lot of file IO, logging and other memory-instensive operations. Any issues, problems, concerns, suggestions? (4) I was thinking about using ext4; seems to have good filestamping without any space ceiling for me to hit. Any other suggestions for a dev machine? (5) I read somewhere that you need to be careful when you install software as the root user, but I can't remember why. What general caveats do I need to be aware of when doing things (installing packages, making system configurations, etc.) as root vs "Development" user? Thanks!

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  • ASP .Net User Roles - ordering for a drop down.

    - by ilivewithian
    We are using the standard aspnet security features, we have need to set the order of the roles, purely for display purposes. We could just have a sequence number onto the end of the aspnet_roles table, but that feels kinds of hacky to me. Also if in future versions of asp the security get changed we will be in trouble. Is there a better way to do this that won't make me loose sleep each time a new version is pushed out?

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  • Any array function or user defned function to pick up only first occurance of value from the array?

    - by OM The Eternity
    If i have an array Array ( [0] => Array ( [0] => 137 [id] => 137 [1] => 153 [trackid] => 153 [2] => jos_menu [table_name] => jos_menu [3] => UPDATE [operation] => UPDATE [4] => 0 [oldvalue] => 0 [5] => 62 [newvalue] => 62 [6] => checked_out [field] => checked_out [7] => 0 [live] => 0 [8] => 2010-05-11 17:46:28 [changedone] => 2010-05-11 17:46:28 ) [1] => Array ( [0] => 138 [id] => 138 [1] => 153 [trackid] => 153 [2] => jos_menu [table_name] => jos_menu [3] => UPDATE [operation] => UPDATE [4] => 0000-00-00 00:00:00 [oldvalue] => 0000-00-00 00:00:00 [5] => 2010-05-11 12:16:28 [newvalue] => 2010-05-11 12:16:28 [6] => checked_out_time [field] => checked_out_time [7] => 0 [live] => 0 [8] => 2010-05-11 17:46:28 [changedone] => 2010-05-11 17:46:28 ) [2] => Array ( [0] => 139 [id] => 139 [1] => 153 [trackid] => 153 [2] => jos_menu [table_name] => jos_menu [3] => UPDATE [operation] => UPDATE [4] => Subhash [oldvalue] => Subhash [5] => Subhashgfhfgh [newvalue] => Subhashgfhfgh [6] => name [field] => name [7] => 0 [live] => 0 [8] => 2010-05-11 17:46:35 [changedone] => 2010-05-11 17:46:35 ) [3] => Array ( [0] => 140 [id] => 140 [1] => 153 [trackid] => 153 [2] => jos_menu [table_name] => jos_menu [3] => UPDATE [operation] => UPDATE [4] => subhash [oldvalue] => subhash [5] => subhashhfhf [newvalue] => subhashhfhf [6] => alias [field] => alias [7] => 0 [live] => 0 [8] => 2010-05-11 17:46:35 [changedone] => 2010-05-11 17:46:35 ) [4] => Array ( [0] => 141 [id] => 141 [1] => 153 [trackid] => 153 [2] => jos_menu [table_name] => jos_menu [3] => UPDATE [operation] => UPDATE [4] => 62 [oldvalue] => 62 [5] => 0 [newvalue] => 0 [6] => checked_out [field] => checked_out [7] => 0 [live] => 0 [8] => 2010-05-11 17:46:35 [changedone] => 2010-05-11 17:46:35 ) [5] => Array ( [0] => 142 [id] => 142 [1] => 153 [trackid] => 153 [2] => jos_menu [table_name] => jos_menu [3] => UPDATE [operation] => UPDATE [4] => 2010-05-11 12:16:28 [oldvalue] => 2010-05-11 12:16:28 [5] => 0000-00-00 00:00:00 [newvalue] => 0000-00-00 00:00:00 [6] => checked_out_time [field] => checked_out_time [7] => 0 [live] => 0 [8] => 2010-05-11 17:46:35 [changedone] => 2010-05-11 17:46:35 ) ) Now here u can see that the index "field" has repeated values i.e. "checked_out" and "checked_out_time" other indexes have single occurrence, now what should I do to select/grab the first occurrence of the repetitive values only?

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  • How to mark a method as "ignore all handled exception" + "step through"? Even when user has selected

    - by Wolf5
    I want to mark a method as "debug step through" even if an exception is thrown (and catched within) the function. This is because 99% of the times I know this function will throw an exception (Assembly.GetTypes), and since this function is in a library I wish to hide this normal exception. (Why did MS not add an exceptionless GetTypes() call?) I have tried this but it still breaks the code when debugging: [DebuggerStepThrough] [DebuggerStepperBoundary] private Type[] GetTypesIgnoreMissing(Assembly ass) { Type[] typs; try { typs = ass.GetTypes(); } catch (ReflectionTypeLoadException ex) { typs = ex.Types; } var newlist = new List<Type>(); foreach (var type in typs) { if (type != null) newlist.Add(type); } return newlist.ToArray(); } Anyone know of a way to make this method 100% stepthrough even if ass.GetTypes() throw an exception in debug mode? It has to step through even when "Break on Thrown exceptions" is on. (I do not need to know I can explicitly choose to ignore that exact type of exception in the IDE)

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  • Why I am not that user after I load cookies?

    - by MoreFreeze
    I want to grab some site data, but it must be a login account. So I register it and login, I found some API about this site that can be used to grab data. I use this Chrome plugin "cookie.txt export" export cookies.txt, I copy all content it export and use following cmd like wget -x --load-cookies cookies.txt http://www.example.com/api/name=xxxx but it doesn't work. It download the page that need I login. So I think this site has some other verification strategy, how can I pass it? Whether I must input in browser manually?

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  • How can I stop the browser viewport moving to the top of the page when the user clicks on a jQueryUI radio button?

    - by ben
    I have got some radio buttons setup like this: <div id="typeRadios"> <input id="note_notetype_note1" name="note[notetype]" type="radio" value="note1" /><label for="note_notetype_note1">note1</label> <input id="note_notetype_note2" name="note[notetype]" type="radio" value="note2" /><label for="note_notetype_note2">note2</label> </div> That I turn into jQueryUI buttons like this: $("#typeRadios").buttonset(); This is the resulting HTML: <input type="radio" value="note1" name="note[notetype]" id="note_notetype_note1" class="ui-helper-hidden-accessible"> <label for="note_notetype_note1" aria-pressed="false" class="ui-button ui-widget ui-state-default ui-button-text-only ui-corner-left" role="button" aria-disabled="false"><span class="ui-button-text">note1</span></label> <input type="radio" value="note2" name="note[notetype]" id="note_notetype_note2" class="ui-helper-hidden-accessible"> <label for="note_notetype_note2" aria-pressed="false" class="ui-button ui-widget ui-state-default ui-button-text-only ui-corner-left" role="button" aria-disabled="false"><span class="ui-button-text">note2</span></label> The buttons work, but whenever I click one, the browser view-port gets returned to the top of the page, the same way it happens when you click on a <a href="#">link</a> link. I am using jQuery 1.4.2 and jQueryUI 1.8.7. How can I prevent this behaviour? Thanks for reading. EDIT: The <a href="#">link</a> part was missing.

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  • How bad is for SEO to "redirect" an user depending on his browser locale ?

    - by bgy
    For a personnal page I use the MultiViews options in Apache to determine which page he should see depending on his locale. Here is what I do. Options MultiViews AddLanguage fr .fr AddLanguage en .en <IfModule mod_negotiation.c> LanguagePriority fr en </IfModule> I am wondering if it is bad for SEO to do this since Googlebot will probably fall on 'fr' or 'en' but not both. Would it be fixed if I add a link inside my page to the different language page.

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  • Can a password change in Active Directory be reverted?

    - by Jordan Milne
    I often need to log in with a user's domain account to make sure that I've set up their profile correctly, but there's no easy way to do this other than to call them and give them a temp pass and force them to change it (bad, since they often forget it,) or ask for their password (worse.) Is there any way to change a user's password, then set it back to the original later? I tried to see if there was any way to get the NTLM hash so I could set it back later, but there doesn't seem to be a facility for that built into AD.

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  • Obtaining a DHCP IP address if static address is not available

    - by user142485
    I have seen some questions that are similar to my problem but not a good solution. Ex. User has a laptop and has a static IP address at the office. They also take the laptop off site where they also need internet. Is there a way to configure their computer so that it will obtain an IP address automatically when the configured static address is not available (without making the user go into network configuration and changing to obtain automatically)?

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  • Seam log4j credential logs

    - by Marc
    In Seam, using log4, I would like to have my info, warn and error always logging the logged in user (if so) name to be logged with whatever the log message is. Being a consistant thing I do not want to have to grab the logged-in user name, and prefix the message. so I attempted to populate the log4j NDC to have it as a field of the log message. Pushing the user name on successful login: NDC.push(credentials.getUsername()); Which works, but the NDC is managed per thread, so once another thread processes a request from the same logged in user, the trace of this user name is lost. I was thinking that there should be a common pattern to accomplish this simple task which is attaching each log message to the logged user, using the NDC or not, to know exactly what user triggered what action. Anyone knows the appropriate way to accomplish this?

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  • how to group fields in crystal reports usingf vb.net code?

    - by meenakshi
    I am using vb.net 2005. i am trying to set report groupings of a crystal report at runtime based on user defined options. MSDN says this: Dim FieldDef As FieldDefinition FieldDef = Report.Database.Tables.Item(0).Fields.Item(comboBox1().Text) Report.DataDefinition.Groups.Item(0).ConditionField = FieldDef but error shows invalid group number

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  • How do you map a composite id to a composite user type with Fluent NHibernate?

    - by gabe
    i'm working w/ a legacy database is set-up stupidly with an index composed of a char id column and two char columns which make up a date and time, respectively. I have created a icompositeusertype for the date and time columns to map to a single .NET DateTime property on my entity, which works by itself when not part of the id. i need to somehow use a composite id with key property mapping that includes my icompositeusertype for mapping to the two char date and time columns. Apparently w/ my version of Fluent NHibernate, CompositeIdentityPart doesn't have a CustomTypeIs() method, so i can't just do the following in my override: mapping.UseCompositeId() .WithKeyProperty(x => x.Id, CommonDatabaseFieldNames.Id) .WithKeyProperty(x => x.FileCreationDateTime) .CustomTypeIs<FileCreationDateTimeType>(); is something like this even possible w/ NHibernate let alone Fluent? I haven't been able to find anything on this.

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  • MYSQL Query with 2 columns in Table A related to 1 column in Table B

    - by CYREX
    I have 2 Tables, User and Mail. In User Table i have 2 columns that i will use, the ID column which makes the relation with the Mail Table and it is the Index of User Table and the Name column. In Mail Table i have Receiver Column and Sender Column. Both columns, Receiver and Sender have a number that relates to the ID Column in the User Table. In the User Table is where the name columns resides and i want to make a query that shows me the Receiver and Sender Columns but with the name of the user, not the ID. Up to this point i have this: SELECT name AS Send, name AS Receive FROM mail,user WHERE sender=guid; I know there is still a part of the query missing but i can not figure out what else to put to tell it to show in the SEND output column the name of the sender and in the RECEIVE output column the name of the receiver.

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  • Want to add a new property to a class, can I use anonymous functions for this?

    - by Blankman
    I have 2 Lists: List<User> List<UserStats> So I want to add a property Count to User (it doesn't have one now, and I can't change the implementation at this point). For a web service call, that returns json, I want to modify the User object. Basically I add the Users to a collection. So I want to add a modified user class (via anonymous functions?) to the collection before I serialize it to json. So something like: loop users { user.Count = userstats[user.ID].Count; list.Add(user); } is this possible? how?

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  • Multiple [Stand-alone] zip files creation?

    - by im_chc
    How can I automatically zip a group of files into multiple zip files (say, 2mb in size for each file), and that each zip file is a stand-alone zip file? (i.e. not mult-volume zip files, that you can't lost any one of the files, otherwise you can't unzip) Is there any tools available to do so? Actually I just need to group the files into many groups, 2mb each etc, zipped or not zipped doesn't matter thx!

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  • Virtual PC on Windows 7 doesn't have adjustment for video card size?

    - by Jian Lin
    The current VirtualBox has a place where the video card size can be set by the user. It seems that Win 7's Virtual PC doesn't have one? Will it auto adjust -- but what if the screen size is 800 x 600 and the user resize it to 1600 x 1200, then the original video size may not be enough and will that cause any issue? I do sometimes see blinking random pixel region showing on the VPC's screen... maybe it is cause by not enough video RAM size?

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  • Where should i save my images that user uploads? java web application

    - by Nitesh Panchal
    Hello, I am saving the image at this location :- private static String photoGalleryPath = "/Common/PhotoGallery/"; In PhotoGallery. I create userid wise folders and save images. Everything works fine. But when i clean and build my project. The whole folder of PhotoGallery gets deleted. This looks very funny to me :). Why does it delete my whole folder everytime? And what more should i do to tell the extra smart Glassfish to not to delete my folders?

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  • Saving table yields "Record is too large" in Access

    - by C. Ross
    I have an access database that I gave to a user (shame on my head). They were having trouble with some data being too long, so I suggested changing several text fields to memo fields. I tried this in my copy and it worked perfectly, but when the user tries it they get a "Record is too large" messagebox on saving the modified table design. Obviously the same record is not too large in my database, why would it be in theirs?

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  • rails: has_many :through + polymorphism validation?

    - by ramonrails
    I am trying to achieve this. Any hints? A project has many users through join model A user has many projects through join model Admin class inherits User class. It also has some Admin specific stuff. Admin like inheritance for Supervisor and Operator Project has one Admin, One supervisor and many operators. Now I want to 1. submit data for project, admin, supervisor and operator in a single project form 2. validate all and show errors on the project form. Project has_many :users, :through = :projects_users User has_many :projects, :through = :projects_users ProjectsUser = :id integer, :user_id :integer, :project_id :integer, :user_type :string ProjectUser belongs_to :project, belongs_to :user, :polymorphic = true Admin < User Supervisor < User Operator < User Is the approach correct? Any and all suggestions are welcome.

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  • Why does my ASP.NET user control's field value reset to 0?

    - by Innogetics
    In the code below, why does the groupId value reset to 0 during Page_Load event? Maybe perhaps the AccountGrid created with groupId 1 is not the one that is loaded to the page? public partial class AccountGrid : System.Web.UI.UserControl { int groupId = 0; public AccountGrid() { } // an aspx page creates AccountGrid with "new AccountGrid(1)" public AccountGrid(int groupId) { this.groupId = groupId; } protected void Page_Load(object sender, EventArgs e) { DataAccessFacade facade = new DataAccessFacade(); // groupId resets to 0 here... grdAccount.DataSource = facade.GetAccountsByAccountGroupId(this.groupId); grdAccount.DataBind(); } } In my page, I have public partial class Default : System.Web.UI.Page { public Default() { } public void Page_Load(object sender, EventArgs e) { ctlAccountGrid = new Views.Controls.Account.AccountGrid(1); // should I do databind? ctlAccountGrid.DataBind(); } }

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  • Rails: include related object in JSON output

    - by Codezy
    I have a note class that belongs to a user (ie a user can create many notes). clip from my notes controller class NotesController < ApplicationController before_filter :authenticate_user! respond_to :html, :xml, :json # GET /notes # GET /notes.xml def index @notes = Note.includes(:user).order("created_at DESC") respond_with @notes end When I ask for the index in json results for example /notes.json, it returns the notes but only returns user_id for the user object. I would like it to also include user.username (and would be curious how to have the whole user object embedded). Bonus question: I could not find a way to make the column show as author_id and have it relate back to user. If this is easy to do, how do you do it?

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