Configuration :: When And Why Use Impersonation
Aug 10, 2010what is impersonation and when, why to use it?I am not getting it.
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Configuration :: .NET Windows 2003 Security Patch And Impersonation. IIS 6
Jun 30, 2010I have an ASP.NET site that uses impersonation. As the impersonated user I use a domain user (not a local machine user). The site is hosted in IIS 6 running on Windows 2003. In IIS 6 for directory security windows authentication is ticked.The site has been running now for about 6 months without any problem. However since about a week back the site has started spuring up really wierd errors. For one, users cannot access the site anymore. When accessing a windows authentication dialog box appears having the user to enter the credentials. However these credentials are not accepted and the standard unauthorized page is displayed
View 7 RepliesImpersonation + Error Reading Configuration Information From The Registry?
Jul 6, 2010have registered keys in the registry for impersonation for my application (asp.net 2.0 running in IIS 7.0)
<identity impersonate="true" userName="registry:HKLMSOFTWAREMY_SECURE_APPAPPNAMEASPNET_SETREG,userName" password="registry:HKLMSOFTWAREMY_SECURE_APPAPPNAMEASPNET_SETREG,password" />
Can Allow .NET Impersonation By Role
Sep 7, 2010I modified the ASP.NET login control to also allow specifying UserRole ('Employee' or 'Volunteer'). Users are authenticated via a call to a webservice written by our client, which accepts username/password/role and returns true or false.If role is 'Employee' it represents an active directory user. The application should impersonate the user with the given username/password.If role is 'Volunteer' the application should run under a set Windows account whose username/password are known in advance (i.e. hard-coded in web.config file).
View 1 RepliesSecurity :: Impersonation In .net 2.0
Mar 4, 2010what is impersonation in asp.net? Is authentication and impersonation both are same ?I googled and found both are one type of security.
View 3 RepliesC# - Impersonation And NetworkCredential?
Jan 14, 2010I need to pass a NetworkCredential object with the credentials of the currently impersonated user to a web service from an asp.net application.My code looks like this:
WindowsIdentity windowsIdentity = HttpContext.Current.User.Identity as WindowsIdentity;
WindowsImpersonationContext context = windowsIdentity.Impersonate();
try {
[code]...
Can Use Masterpages With Selective Impersonation
Feb 25, 2010The masterpage of my site is using a control that reads data from a network share. To make this work on all pages I'm having to enable impersonation for the whole site. But what I want to do is only enable it for the pages that actually read/write to the share. Eg:
<location path="SystemAdmin">
<system.web>
<identity impersonate="true" password="abcdefgh" userName="MYDOMAINAdministrator" />
<authorization>
<allow roles="Admin" />
<deny users="*" />
</authorization>
</system.web></location>
Security :: .NET Impersonation / How To Do The DB Connection
Mar 13, 2011We are in the process of building ASP.NET windows auth application. Where user need to interact with other internal system using the same single sign on. To interact application DB the system relies on App Pool account, for this we are every time doing the imporsanation to before every DB call. We can not have all useres added to DB, or create an SQL account. Which requires password and user to store in Web Config. We can encrypt it again you encrypt with what and etc ..So we have one windows account wihich same windows account used for our app pool as well.
I would like to know from the team is what is the best way to do the DB connection in this case?What is the implcations if we imporsanate the DB calls based on the app pool account ? Is it a best practice? I have read it creates its own thred and stuff, Do we need to worry ?
C# - Impersonation Memory Leak
Feb 9, 2011On http://msdn.microsoft.com/en-us/library/w070t6ka(v=VS.100).aspx there is an example on how to do impersonation with .net 4.0. We have used this example in a class that inherits IDisposable for ease of use. However, when we use this class in a asp.net web application, we notice a slight but steady increase of Pool Paged Bytes in performance monitor. After a week, the application crashes.
I've tried different implementations of the impersonation-class, using http://msdn.microsoft.com/en-us/library/w070t6ka(v=VS.90).aspx and http://support.microsoft.com/kb/306158 as reference, but they all show the same leak.
Where does this leak come from? Is there a problem with the windows api? We are running Windows 2008 R2.
This is our current version of the impersonation class:
public class Impersonator : IDisposable
{
public Impersonator(string username, string domain, string password)
{
if (!ImpersonateValidUser(username, domain, password))[code]....
And this is the performance monitor graph of two webservers using different versions of the class:
When we disable the class, and use global impersonation via web.config, those lines are completely flat.
Update,I have made a test-application that successfully reproduce the problem. It can be downloaded here:
http://rapidshare.com/files/447325211/ImpersonationTest.zip
The result over 18 hours looks like this:
Security :: Impersonation In SharePoint?
Apr 13, 2010I noticed impersonation is turned on by default in MOSS web configs. I tried disabling it but the web app returns an error. So my question, is it possible to disable impersonation in MOSS? If it is possible are there any special considerations I should be aware of?
If you're interested in why I need to do this...I need to have a custom web part (developed with SmartPart) talk to a separate SQL server using the application pool rather than the current user (Kerberos is enabled). If I set the authentication mode to NTLM I get NTAuthority/ANonymous login errors from my SQL connection. If I turn Kerberos on, the currently logged in user's credentials are passed. If I hard code the user id and password in the connection string it seems to ignore it and default to whichever security model is in place (NTLM or Kerberos).
Security :: Impersonation Not Working?
Jun 30, 2010I've added the identity tag for impersonation. I've configured my site under IIS 5.1. The identity i've added is my domain username/password. But when I run any exe file from my asp.net file, it still runs under "aspnet" user name.
View 1 RepliesSecurity :: Looking For Video About How To Use Impersonation
Aug 6, 2010suggest me a good Video to look at that can give me a start on how to use Impersonation?
View 1 RepliesSecurity :: Impersonation And Directoryentry?
Dec 27, 2010I am trying to use impersonation on an IIS server while I access Active Directory data. The following code works fine on the localmachine but when I put this same code on an IIS server I get an error: System.DirectoryServices.DirectoryServicesCOMException: An operations error occurred.
If I remove the top 4 lines and add my ID and passcode to the DirectoryEntry, everything works fine. I would prefer to not have my id and passcode anywhere on the web. Any ideas on how to fix this? Dim impersonationContext As System.Security.Principal.WindowsImpersonationContext
Security :: .NET Impersonation In IIS 6 Is Not Working?
Sep 2, 2010I am using impersonation in my ASP.NET application to access network resources. It works fine when I run on my computer, however when I setup the site on IIS6, it does not work. Is there some extra configuration, I need make in IIS for it?1. I created an account "TestUser" with the privilege as "act as operating system" on a server that has the resources which I want to access.2. The impersonation works fine on my computer, when I run from visual studio. My computer is on the network under same domain where the "TestUser" is created.
View 5 RepliesIIS 7.5, .NET, Impersonation, And Access To C:WindowsTemp?
Jun 7, 2010Summary: One of our web applications requires write access to C:WindowsTemp. However, no matter how much I weaken the NTFS permission, procmon shows ACCESS DENIED.Background (which might or might not be relevant for the problem): We are using OLEDB to access an MS Access database (which is located outside of C:WindowsTemp). Unfortunately, this OLEDB driver requires write access to the user profile's TEMP directory (which happens to be C:WindowsTemp when running under IIS 7.5), otherwise the dreaded "Unspecified Error" OleDbException is thrown.
View 1 RepliesSecurity :: How To Enable Impersonation On IIS 7.5
Sep 14, 2010I am running ASP.MVC 2 with LINQ2SQL on IIS 7.5. I have enabled Windows Authentication with ASP.NET Impersonation. Application pool is running on different domain account [AsiaTestWebUser] is part of windows group [AsiaTestUserGrp]When i enable Asp.net impersonation on MVC web site. Once i hit LogOn from the default page , it's throwing me with below error message
[Code]....
Impersonation Fails On First Try But Succeeds On Second?
Jun 3, 2010We are using RDLC's in a Asp.net web application. For reasons beyond our understanding, the first call to the database server fails with the following error:
An error has occurred during report processing. Cannot open database "TryParkingIt2" requested by the login. The login failed. Login failed for user 'EXTRANETOurServerNameHere$'.
Run the report again, it works.
Update Click the button the first time, it fails. Click the button again, it works. The account being impersonated is a domain account. Also, this error occurs on all five different report pages, which is why I didn't include any code.
WCF / ASMX :: Impersonation Not Working?
Jan 13, 2011I have a website using Windows Authentication. Note: The accounts are domain accounts.The website is configured to impersonate in the Web.Config using
[Code]....
C# - Impersonation Not Shared With Com Object?
Aug 18, 2010So I have an ASP DOT NET web service which needs to impersonate Windows Authenticated users. This web service calls into a Com Api to perform database operations.
It seems like the Impersonation does not persist into the Com Api. Is this because the Com DLL is loaded into its own memory space and treated as a separate process? Also what would be some ways to deal with this issue and persist the Impersonation into the Com Api Dll?
Moving the functionality of the Com Api into the dot net code is not an option at this point. Also the Com Api was written in C++.
Passthrough (impersonation) Authentication With TFS Api?
Oct 25, 2010I'm trying to enable passthrough or impersonation authentication inside an ASP.NET website that uses the TFS2010 API.I've got this working correctly with Cassini, however with IIS 7.5 (Windows 7) something is going wrong.I found this blog post on the subject, and tried the following:
private static void Test()
{
TfsTeamProjectCollection baseUserTpcConnection =
[code]...
WCF / ASMX :: Impersonation For Web Services?
Mar 18, 2011From my following code snippet:
ExchangeServiceBinding binding = new ExchangeServiceBinding();
binding.Credentials = new NetworkCredential(username, password);
binding.Url = "http://servername/ews/exchange.asmx";
The above web services throws Unauthorized Access Error (Error : 401) for newly created users.I would like to know how to impersonate this user for accessing this exchange web services.
Call A WCF Service Outside Of The Impersonation Context?
Jul 30, 2010I'm having problems with impersonation in WCF. Namely, I'm calling a named pipe service from within ASP.NET with impersonation turned on. This fails (due to permissions on the pipe blocking anyone from the network). So, is there any way I can make the call outside of the impersonation context? I don't need to be impersonating to make this call, but can't see any way of doing this.
PS. I need to do this declaratively, through config...
Security :: .NET Impersonation And IIS 6 Application Pools
Jun 14, 2010In my Web.config of my ASP.NET app I have set below:
<authentication
mode="Windows"/>
<identity
impersonate="true"
/>
Security :: How To Set The Authentication To Basic And Impersonation
Oct 12, 2010I have an Intranet which is on IIS 7.0. I want to authenticate my users and know who is logged in. What options do I have to set in IIS Authentication part that my users do not need to type their user name and password to login to Intranet. I have set the Authentication to Basic and Impersonation, but it is asking user name and password.
View 3 RepliesSecurity :: Impersonation In Exchange Web Service API
Apr 9, 2010I have a service account SvcAcc to manage contacts (add/update/delete contacts) for all the exchange users. I Impersonate using the below cmdlet to manage contacts but it also allows SvcAcc to perform other functions (such as send email etc) on behalf of the user.
cmdlet
New-ManagementRoleAssignment -Name:impersonationAssignmentName -Role:ApplicationImpersonation -User:serviceAccount
//impersonation code
service.Credentials = new NetworkCredential(ServiceAccountUserName, ServiceAccountPassword, domain);
service.ImpersonatedUserId = new ImpersonatedUserId(ConnectingIdType.SmtpAddress, userEmail);
