.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
Sign In
Win Surprise Gifts!!!

Top 5 Contributors of the Month
Gaurav Pal
Post New Web Links

login authentication

Posted By:      Posted Date: September 07, 2010    Points: 0   Category :ASP.Net
Hi,I have a database with username and password. The password is stored in sql server with sha1 encryption. I want to retrieve the password from database and compare it with user entered password value. How can I do that? I need to decrypt it first.Regards,ap.

View Complete Post

More Related Resource Links

Forms based users being prompted for windows authentication login for My Sites photos in user lists

Here's an issue I didn't see coming for our forms based authentication users. 

We have a web application extended to an external url to handle forms based authentication for users outside of our domain. Our setup looks like this...

Internal Users/Windows Authentication - moss.domain.com
External Users/Forms Based - mossext.domain.com
My Site for Internal Users - mysites.domain.com

When our forms based users are accessing user lists, or discussion pages that display user pictures, they are getting a windows authentication login for our internal users (mysites.domain.com) who have populated their my site with personal photo.

How do we fix this? 

It's possible to using sharepoint services 3.0 hosted site without authentication login ?

It's that any way to able user read / write by without login authentication for sharepoint services 3.0. because i'm having problem when external user need to access to our sharepoint pages, but their can login to it.

Windows authentication login form issue


Hi guys,

I have an application that requires windows authentication to login, the problem is that every time an user logs in under IE and win XP, the username is pre filled with the IP address of the server as instance and the username. I need to replace the server ip with  XXXX instance name instead of doing this manually.

Could anyone pleas help me out with this one?

Thanks in advance,


Multiple Windows Authentication options on login after Web App restore

Hi I have a question regarding SharePoint Foundation 2010 and backup / restore jobs... I'm doing nightly farm backups using PowerShell: Add-PsSnapin Microsoft.SharePoint.PowerShell Set-location $home Backup-SPFarm -Directory \\same-server\***** -BackupMethod Differential This morning I decided to try and restore a single web application, just to make sure it works. In Central Administration I selected the latest farm backup and then selected the node for the Web Application and choose restore (using option: Same configuration) because it's the same server. Restore process went fine, no failure messages, and I can see that it has restored the content I deleted for testing. BUT when I enter the site. I'm presented with a Login page (that you would see if you have also configured Forms Authentication for the same zone, which I have not) and the drop down box show two options: "Windows Authentication" and "Windows Authentication". Both let me use windows credentials to login so basically the login page is pointless and it wasn't there before. I should note: The Web Application was and is configured to use Claims Based Authentication and for Windows Authentication: Kerberos. Nothing for forms. Default sign in page. And I was never presented with this redundant login page before the restore. Anyone knows why this could be happening and how to solve it?? Than

HttpWebRequest Form Authentication Not Getting Past Login Page

Hey Guys,I am trying to use HTTPWebRequest to login to a site and then retrieve the page after login. However, it seems as if I can't get past the login. I also investigated with Fiddler and tried mimicking Fiddler almost completely and still no luck.Any idea what I am doing wrong?Thanks,Mohammed    Dim webRequest As HttpWebRequest Dim responseReader As StreamReader Dim responseData As String Dim postData As String = "login=testexpert@yahoo.com&password=testexpert" Dim cookies As CookieContainer = New CookieContainer() Dim requestWriter As StreamWriter Try 'post form data to page strUrl = "https://www.ideeli.com/login" webRequest = HttpWebRequest.Create(strUrl) webRequest.Method = WebRequestMethods.Http.Post webRequest.ContentType = "application/x-www-form-urlencoded" webRequest.CookieContainer = cookies webRequest.ContentLength = postData.Length requestWriter = New StreamWriter(webRequest.GetRequestStream) requestWriter.Write(postData) requestWriter.Close() 'recieve cookie webRequest.GetResponse().Close() 'now we send the cookie webRequest = HttpWebRequest.Create("http://www.ideeli.com") webRequest.CookieContainer = cookies responseReader = New StreamReader(webRequest.GetResponse.GetResponseStream()) responseData = responseReader.ReadToEnd() res

Authentication required, redirect to login page

Hi,I want authentication required for all webpages in a site. If i copy the url of any of the web page in the current site and paste it in the url address i should redirect to login page. If you have any solution please suggest it.

Form based authentication Sharepoint 2007 gets redirected to login page

Hi We have sharepoint 2007 site deployed on Windows server 2008, IIS 7.0.  We extended the web application to enable forms based authentication referring to link http://msdn.microsoft.com/en-us/library/bb975136(office.12).aspx#MOSS2007FBAPart1_Intro, we selected Kerberos instead of NTLM, behavior is like, when user tries to login into the site using OOB login.aspx, user again gets redirected to the login page. We tried to extend the web application again but this time we selected NTLM, but this time farm account (also is application pool identity) is not able login and exhibits same behavior as above, but for other users we are able to login. Has anyone come across this behavior? can anyone please guide me in correct the behavior? Regards, RK  Radhakrishna

Cannot Login with Forms Based Authentication to SharePoint 2010 - Issue with the SecurityTokenServic

Please be advised I have followed the steps on http://donalconlon.wordpress.com/2010/02/23/configuring-forms-base-authentication-for-sharepoint-2010-using-iis7/. I have tried to fix the following issue for a week using different farms and SharePoint 2010 installations, however I am getting the following error when trying to authenticate using Forms Based into a Claims site: Cannot get Membership Provider with name FBARoleProvider The membership provider for this process was not properly configured. You must configure the membership provider in the .config file for every SharePoint process. 1. I am certain the membership provider is configured in the SecurityTokenServiceApplication webservice as I can manage users and roles in IIS7 using the SecurityTokenServiceApplication website. 2. I am certain that membership provider is configured in the both the Claims Web Application and Central Admin as I can manage users and roles in IIS7 using their websites. 3. I know the issue is the SecurityTokenServiceApplication service as I had to set <serviceDebug includeExceptionDetailInFaults="true" /> to get the error above. 4. I can log into the Claims Based Application using windows authentication, however I am unable to see the users on the people picker despite that I can see them from the application's site on IIS

Login issue using authentication mode="Forms"

Hi,I am using authentication mode="Forms" with ldap, i manage to login and logour fine but when user 1 is logged and when user2 logs, user1 gets the user2 session. Any idea why this might be happening? Here is some code:     <authentication mode="Forms">            <forms name="login" loginUrl="Login.aspx" />        </authentication>        <authorization>            <allow roles="auditor"/>            <allow roles="approver"/>            <allow roles="user"/>            <deny users="?"/>        </authorization>        <identity impersonate="true"/>protected Boolean ValidateUser(String strUsername, String strPassword)        {            //Return true if the username and password is valid, false if it isn't             &n

PassThrough authentication fails: Login failed for user 'NT AUTHORITY\NETWORK SERVICE'

I've tried it with every AuthenticationMode! But no one seems to work correctly in my case. I thought that PassThrough should work with a preset User ID and password. This would be enough for the moment, but even this doesn't work!! With WindowsCredentials I get the following error: The Property with name 'SsoApplicationId' is missing on the LobSystemInstance. SsoApplicationId I tried to set this with the SharePoint SSO but I've no such services. How can I set this just for the current WindowsCredentials (of the current Sharepoint user)? With RevertToSelf I get the following error: "An error occurred while retrieving data from MyLOBInstance. Administrators, see the server log for more information." The server log contained no useful information for me. With PassTrough I get the following error: "Login failed for user 'NT AUTHORITY\NETWORK SERVICE'. [CLIENT: <local machine>]" Why are the lines <Property Name="RdbConnection User ID" Type="System.String">MyDomain\Administrator</Property><Property Name="RdbConnection Password" Type="System.String">mYpAssWoRd</Property> being ignored? Everything (MOSS, SQLServer,...) is on a single machine, so I don't need to activate Kerberos, do I? <LobSystemInstance Name="SEPInstance1207">   <Properties>    <Property Name="DatabaseAccessProvider" Type="Micros

Redirecting to login page while accessing document from document library In FBA Authentication

Hi all,            I have FBA site. When i open document from share point document library, it takes me to login page. After i enter credentials it will open page in client application ( ex. Microsoft word, microsoft powerpoint).   Regards Milan chauhan

Forms Authentication shared between 2 Applications, but still getting directed to login page

my scenario is: Single Sign-on Within a Sub Domain (two virtual directories under the same sub domain)I've setup both sites using the same forms authentication info in my web.config. both sites have the same machine key's as well. I sign into site1. i click a link that directs to site2. site2 still redirects me to the login page, however on the login page I test HttpContext.Current.User.Identity.IsAuthenticated and it returns true. I also tested on site2's login page to pull the ticket's information and it's pulling everything. so it looks like SSO is working as far as sharing the authentication ticket, yet I cannot figure out why it still puts me on the login page? site 1: https://mysub.mydomain.com/site1/ link in site1 that directs to site2: site 1: https://mysub.mydomain.com/site2/mypage.aspx any ideas? appreciate any help someone could give.

Forms Based Authentication - problem with custom master page and login page



I have successfully enabled and set up FBA (Forms Based Authentication) on my SharePoint 2010 Foundation server. The thing is that I need to customize the look and feel of the login page. I have successfully customized the page (and master page) to look the way I want, however, when I try to log in, I get the following error/message on the page:
"Forms Based Authentication on classic Web applications has been deprecated".

What I've done:
Made copies of /_layouts/simple.master and /_layouts/login.aspx and renamed the copies. The markup in the master page is MUCH simpler than the original, but I've kept all the ContentPlaceholders that I don't use (most of them) in a hidden <asp:Panel at the bottom of the page.

I've changed the web.config file:
<authentication mode="Forms">
      <forms loginUrl="/_layouts/loginCustom.aspx" />

So, I'm not getting any errors on the page until I try to log in. When I use the default settings (login.aspx and simple.master) it works just fine (but damn that page looks ugly!).

Does anyone know what I might be missing?

Update: I believe the reason it doesn't work is because my custom login aspx is not part of the Claims Based Web Application (because it's sitting

Windows Authentication install and the sa login


If you install SQL2005 and above with Windows Authentication does the sa login get created? If it does is it disabled?




Active Directory Authentication with Login Control ASP.Net 3.5 or 4


Hello, I am trying to follow instructions on how to create a login page that tests against active directory.  My issue is all of the tutorials seem to be written for ASP.NET 2.0.  When I try to follow them I cannot get them to work.  Does anyone have any tutorial or information for .NET 3.5 or 4.0?


asp.net forms authentication with route handling - error, routes not recognized, returns to login


 I just created a small site with form authentication with route handling.  Without forms authentication, the pages route just fine.  With forms, it returns back to the login page as it is not one of my allowed locations specified in my web.config file.


I know I probably need to write a custom route handler.  Does anyone have an example I can follow for this?  Thanks.

Authentication (login - username/password)



I have a website developed in ASP.NET created by someone else, sitting on another server... until now... a simple(ish) setup with login to update content.

The site was zipped up and I was told it would be a simple case of uploading all the files onto the new server.  I've managed to upload the site and it works fine... but I can't access the editing pages as it will no longer accept the username and password when I go to login.

The host server is running ASP.NET v4 and IIS v7.  Hosting is with godaddy.com so I'm also getting used to their way of doing things.

Hope someone can help.


ASP.NetWindows Application  .NET Framework  C#  VB.Net  ADO.Net  
Sql Server  SharePoint  Silverlight  Others  All   

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend