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• Pass User Data to AWS client

  - by bearrito

  Has anyone successful passed user data to the AWS CLI ? I have tried various incantations of the following but it does not work. Docs say string must be base64 encoded : http://docs.aws.amazon.com/cli/latest/reference/ec2/run-instances.html The instance logs never indicate the script is executed and chef is installed. aws ec2 run-instances --image-id ami-a73264ce --count 1 --instance-type t1.micro --key-name scrubbed --iam-instance-profile Arn=arn:aws:iam::scrubbed:instance-profile/scrubbed --user-data $(base64 chef_user_data.sh --wrap=0) chef_user_data.sh #!/bin/bash curl -L https://www.opscode.com/chef/install.sh | sudo bash

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• ProFTPD Virtual User Directory

  - by Nik

  Alright, I'm trying to replicate a web hosting company's basic setup here by authenticating virtual users via SQL and redirect/jail them to their directory. I've accomplished most of the goals here, with the exception of redirect/jailing them to their directory. The directories are stored in /home/ftp and that's what DefaultRoot is set to. I want each individual user to have and be jailed into their own directory. It doesn't appear that setting homedir in SQL has any effect. Upon logging into FTP with any user, it logs into the DefaultRoot with no directory jailing or redirect. How do I accomplish this last task?

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• Write hash password to LDAP when creating a new user

  - by alibaba

  I am working on a project with a central user database system. One of the requirements of the system is that there should be only one set of users for all the application. FreeRADIUS and Samba are two my applications that both use LDAP as their backend. Since users must be the same for the entire system that contains many other applications, I have to read the list of users from the central database and recreate them in the LDAP directories for Samba and FreeRADIUS. The problem is that users are sent to me from another entity and I can save them in the database with their hash passwords. I don't have access to their cleartext passwords. I am wondering if I could enter directly a hash password for a new user in LDAP with my preferred hash mechanism. If not, can any one tell me what strategy I have to use? I am running my server on UBUNTU 12.04 and all other applications are the latest versions. My database system is PostgreSQL 9.2. Thank you

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• How to block null/blank user-agents in IIS 7.5

  - by Jeremy

  We are going through a large scale DDOS attack, but it isn't the typical bot-net that our Cisco Guard can handle, it is a BitTorrent attack. This is new to me, so I am unsure how to stop it. Here are the stats IIS is processing between 40 and 100 requests per second from BitTorrent clients. We have about 20% of the User Agents, but the other 75% are blank. We want to block the blank user agents at the server level. What is the best approach?

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• Deployed Web Application Requests for User Name and Password

  - by user43175

  Deployed Web Application Requests for User Name and Password I recently deployed a .NET web application into the server. Authentication mode is set to Windows (since the application is accessible only to Intranet users. Testing some machines, the application loads up properly. For some machines, a logon dialog window appears asking for User Name or Password. These dialog windows are those that you also normally see when you are trying to log into a Windows domain. Any idea why this happens randomly? Thanks.

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• Folder redirect policy does not apply to one user

  - by Yoffe

  I'm running Windows Server 2008 R2, my station runs Windows 7. while defining folder redirection policy (and others) I find that the redirection does not apply (or appear) in rsop.msc checkout. First thing I've checked is restrictions on the folders where the My Documents folder will be redirected to, I have set full rights for my user on those folders (on the server), and yet I get no actual result. Eventually I decided to add my specific user to the scope under the Folder Redirection policy, and well - still nothing... Would love some clue about what can be wrong.

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• Logs show lots of user attempts from unknown IP

  - by rodling

  I lost access to my instance which I host on AWS. Keypairing stopped to work. I detached a volume and attached it to a new instance and what I found in logs was a long list of Nov 6 20:15:32 domU-12-31-39-01-7E-8A sshd[4925]: Invalid user cyrus from 210.193.52.113 Nov 6 20:15:32 domU-12-31-39-01-7E-8A sshd[4925]: input_userauth_request: invalid user cyrus [preauth] Nov 6 20:15:33 domU-12-31-39-01-7E-8A sshd[4925]: Received disconnect from 210.193.52.113: 11: Bye Bye [preauth] Where "cyrus" is changed by hundreds if not thousands of common names and items. What could this be? Brute force attack or something else malicious? I traced IP to Singapore, and I have no connection to Singapore. May thought is that this was a DoS attack since I lost access and server seemed to stop working. Im not to versed on this, but ideas and solutions for this issue are welcome.

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• Run preseed commands as specific user / switching users

  - by pduersteler

  Beside the usual setup where I create a normal user foo, I want to run a few d-i preseed/late_command commands as that foo user. My initial thought was to simply call those commands with sudo, e.g: d-i preseed/late_command in-target echo "<pwd>" | sudo -Si <command>. This works for some sort of commands. However the problem is that some of the commands load up shell scripts which require to not be run with sudo. Issuing a su -c "<command>" would be an alternative, but su does not offer the possibility to read the password from stdin. Is it safe to jump around between the users using su (And if yes, how do I provide the stdin? and does it work or just result in a su: must be run from a terminal) or would this cause issues?

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• how to create a .swf file with video controls on it, with out any coding?

  - by manraj82

  how to create a .swf file with video controls on it, with out any coding? thanks

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• user management in linux

  - by sdr

  what isThe difference between user management in Linux and networks with active directory?

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• Solaris NFS: user permissions

  - by cjavapro

  I am very new to NFS. I would like to make sure I am clear. If the NFS server shares a directory rw,, and all the files in the directory are permissions 700 and user/group for those files is root/root,,, On the client you would have to log in as root to see it. Is this correct? I am aware that a non root user on the client could make a direct connection to override this. (as in don't use the mount, just use an NFS client hack.) It really seems like anyone who has access to the client machine should have access to the files and that the client machine should be ignoring permissions. Only the server should handle permissions. Am I correct in my understanding? Is it normal to have this type of layout? Is there a way to ignore the permissions on the client side?

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• How to check currently authorized ftp user/password ?

  - by wamp

  It should be different from the ssh login user/password,right?

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• Chrooted user does not start in his home directory and does not load his bash_profiles

  - by Stuffy

  If the users logs in, he starts in / of the chroot (Which is /var/jail on the real machine). I would like him to start in his home-dir. Also, he seems not to load any of his profile-files (.bash.rc etc). I followed this tutorial to create the chroot environment. This is what my /etc/passwd looks like: test:x:1004:1008:,,,:/var/jail/home/test:/bin/bash this is what my /var/jail/etc/passwd file looks like: test:x:1004:1008:,,,:/home/test:/bin/bash I also found out that, if I remove Match User test ChrootDirectory /var/jail AllowTCPForwarding no X11Forwarding no from my /etc/ssh/sshd_config, the user starts in his correct home-folder and with his bash-settings loaded. However, he is able to leave the chroot-environment if I remove that part. This question I asked before is somewhat related, since I think the wrong look of the commandline is caused from the not loaded profile-files. So any ideas how to fix this?

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• how to manage a multi user server on linux?

  - by user1175942

  I'm working on a university project, where I have Tomcat as a web server, and I want to create a multi user environment on top of linux, so every user that logs into my website has his own credentials, and he can access only his own data (files and folders...). The main issue is that the purpose of the website is executing code on the server-side, so I must have a good (reasonable) protection against malicious code. (a user destroying his own user is fine by me) I thought that defining a linux-user for every website-user is the best solution - it isolates each user from the other, and I can define each one's permissions. Can I create users in linux using shell commands? Can I configure max quota/memory/cpu for a user? Anyone has another idea for managing that kind of multi-user environment?

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• Rewrite (or add) "Sender: " header when MAIL FROM is not the authenticated user

  - by nbevans

  I need to get Postfix to inspect the MAIL FROM of the envelope and determine whether it matches the authenticated user of the session. If it does not, it should then add or update the "Sender: " header inside the e-mail so that its value is that of the authenticated user. I understand that this can be done using sender_canonical_maps but, having tried a few remedial tests, I'm unable to get it working. More than anything I would like to know whether this is actually possible with Postfix, and secondly whether I am in the right ball park. Lastly, an example of how to do it would be fantastic. Thanks very much.

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• Bing maps silverlight control custom pushpin

  - by Razvi

  I tried to make a custom pushpin for the Bing Maps silverlight control, but I can only add 1 pushpin. At the second pushpin I get the following error: System.ArgumentException: Value does not fall within the expected range. at MS.Internal.XcpImports.CheckHResult(UInt32 hr) at MS.Internal.XcpImports.Collection_AddValue[T](PresentationFrameworkCollection`1 collection, CValue value) at MS.Internal.XcpImports.Collection_AddDependencyObject[T](PresentationFrameworkCollection`1 collection, DependencyObject value) at System.Windows.PresentationFrameworkCollection`1.AddDependencyObject(DependencyObject value) at System.Windows.Controls.UIElementCollection.AddInternal(UIElement value) at System.Windows.PresentationFrameworkCollection`1.Add(T value) at MapInfo.Silverlight.CitiesControl.MainPage.c_GetCitiesCompleted(Object sender, GetCitiesCompletedEventArgs e) Does anyone know what I might be doing wrong? I am setting the following properties before adding it to the map: public Location Location { get { return this.GetValue(MapLayer.PositionProperty) as Location; } set { this.SetValue(MapLayer.PositionProperty, value); } } this.SetValue(MapLayer.PositionOriginProperty, PositionOrigin.BottomLeft);

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• Books about Advanced WPF control building

  - by Carlo

  Hello. I'm really interested in learning really advanced features of WPF to learn how to create advanced controls, but apparently I'm running out of resources, and possibly, imagination. I have these 4 books: WPF Control Development Unleashed Experiences Pro WPF 2008 Presentation Professionals Programming WPF Chris Sells WPF in Action Visual Studio 2008 One finished, two other half way, the other one just started. I sort of expected more from the "WPF Control Development Unleashed" one. Anyway, do you know any more books about advanced WPF features, and control building? Or even about how WPF works internally. Let me know what are your favorite WPF books, maybe I've overlooked some of them. Thanks!

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• How do I prevent flickering on CListCtrl?

  - by Sorin Sbarnea

  I'm using a CListCtrl/CListView report view (LVS_REPORT) in virtual mode (LVS_OWNERDATA) with LVS_EX_DOUBLEBUFFER enabled and I encounter ugly flickering. Double buffer have a real effect but it doesn't stop all flickering (without it very slow). I'm not looking for switching to other controls that would require a high amount of rework (like ObjectListView) How does the flickering behaves: * on column resize - the background is first clean using lightgray and after this is displayed the text (background is white) * on mouse scroll (animated) - for a very short time there is lightgray-bar displayed in the area where new lines are to be displayed. It looks like it does clean the background using the default window background color (lightgray) for the area where it has to redraw. How do I solve the flickering problem?

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• Closing ASPxPopupControl and Reset Login Dialogs

  - by Fitzroy Wright

  I am creating a login usercontrol. I have added the following buttons: Recover Password, Change Password & Edit Profile. I am using DevExpress's ASPxPopupControl to host the functions associated with those three buttons. There are two problems When the popup is opened I need to be able to close/hide it using a command button When a user starts using one of the login controls and chooses to close the dialog the next time the dialog is opened it does not start at the beginning. (e.g. Start the change password dialog, enter some information, close the popup; the information you started with is not cleared) Any ideas?

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• intercept RelativeSource FindAncestor

  - by Pradeep

  I have a WPF application which runs as a excel plugin, it has its visual tree like so Excel ElementHost WPF UserControl WPF ribbon bar control Now any controls sitting on the WPF ribbon bar control are not enabled when the plugin is loaded within excel. See error below System.Windows.Data Error: 4 : Cannot find source for binding with reference 'RelativeSource FindAncestor, AncestorType='System.Windows.Window', AncestorLevel='1''. BindingExpression:Path=IsActive; DataItem=null; target element is 'Ribbon' (Name=''); target property is 'NoTarget' (type 'Object') If I nest the ribbon bar control in a standalone Window(outside excel) it works fine. Is there a way to intercept the FindAncestor call for a Window and wire it to something else.? Note that I cannot change the above binding as it isn't my control.

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• How to represent "options" for my plugin architecture (C# .NET WinForms)

  - by Joshua

  Okay basically here's where I'm at. I have a list of PropertyDescriptor objects. These describe the custom "Options" fields on my Plugins, aka: public class MyPlugin : PluginAbstract, IPlugin { [PluginOption("This controls the color of blah blah blah")] [DefaultValue(Color.Red)] public Color TheColor { get; set; } [PluginOption("The number of blah blah blahs")] [DefaultValue(10)] public int BlahBlahBlahs { get; set; } } So I did all the hard parts: I have all the descriptions, default values, names and types of these custom "plugin options". MY QUESTION IS: When a user loads a plugin, how should I represent these options for them to config? On the back end I'll be using XML for the config, so that's not what I'm asking. I'm asking on the front end: What kind of WinForms control should I use to let users configure the options of a plugin, when there will be an unknown amount of options and different types used etc.?

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• Delphi and prevent event handling

  - by pKarelian

  How do you prevent a new event handling to start when an event handling is already running? I press a button1 and event handler start e.g. slow printing job. There are several controls in form buttons, edits, combos and I want that a new event allowed only after running handler is finnished. I have used fRunning variable to lock handler in shared event handler. Is there more clever way to handle this? procedure TFormFoo.Button_Click(Sender: TObject); begin if not fRunning then try fRunning := true; if (Sender = Button1) then // Call something slow ... if (Sender = Button2) then // Call something ... if (Sender = Button3) then // Call something ... finally fRunning := false; end; end;

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• DataSource Control for List<T>

  - by diamandiev

  I know all the data source controls like LinqDataSource, ObjectDataSource etc. They are cool but they are intended to be used in conjunction with a database. I actually need a simple data source control that can work with a plain old List (That supports delete, update, select, insert ofcourse). I was thinking of using the objectdatasource but the select, update... methods are not present in the List. So is there such a control or do i have to roll my own? Should i inherit from the objectdatasource?

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• wpf trigger events after a few milli-seconds!!!

  - by Rev

  Hi What was that "wpf trigger events after a few Milli-seconds" ;) Let me explain about that: I have a wpf form with few controls. some of these control over-writing template. for example a textblock with an effect will be trigger on Mouse-Enter event and change color of foreground to something else. But after running program when mouse enter on textBloc, it takes a few Milli-seconds until Mouse-enter event triggers. also all control or better say all control which use mouse-events have this problem. How solve this problem???

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• how can i add a Customcontrol to another Customcontrol

  - by scatman

  i want to create a CustomControl: TextList that extends a listBox. TextList : ListBox on CreateChildControls of the TextList i tried to put the followig code in order to create a textbox for every listBox: protected override void CreateChildControls() { TextBox t = new TextBox(); t.ID ="1"; //just an example this.Controls.Add(t); base.CreateChildControls(); } the textbox is not displayed when i call TextList in aspx. i don't think that this is the right way of doing it. so is there a possible workaround to add a control to another control?

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