Security :: How To Check Authentication In Webpage
Apr 28, 2010
I am new to this so forgive my lack of techical jargon/understanding.
We have and active directory setup in our dmz for 'external' user authentication to our web sites. This works fine...
We also have 'internal' users who have been authenticated to our 'internal' active directory. That works fine.
The problem is that we would like the internal users to be able to access the web sites on the web server in the dmz without getting prompted for authentication a second time...the user has already logged into the AD internally. Is there a way for this to happen? Currently they are being prompted for their credentials any time they go to login to a web site that is located in the dmz.
I currently have a website which I want everyone to be able to view, authenticated or not. But if someone does sign in, I want different controls and different C# code to be run on the page.
At the moment I have not put any asp security in. I just have two text boxes that check against the database then keep the user logged in using a session variable. Each page then checks to see if the logged in session variable has a user in it and runs the code.
I'm assuming this is not the most secure way, is there a way to do this correctly?
I need to know how we can add OpenID Authentication in asp.net. For example, in some web site we can login using gmail account or wordpress account or twitter account some other public sites. I want know how we can add that in our site too. Let me know the code for that or can you give me more details where I can get that information or sample code.
I want to check if user is autheneicated in control (ascx). I use HttpContext.Current.User.Identity.IsAuthenticated; for this purpose.
When I browse pages using ASP.Net Developement server -VS 2008- it works fine, But when I use IIS 7 then it always return false , even if user is authenicated.
Note that it's even work fine with IIS 6 but With IIS no hope (Classic/Integrated mode). does it related to IIS 7 or what the method that I use?
My requirements is when one other website call my service (httphandler) and in response i will provide one parameter which is
value of form authentication cookie
now that website call my website with that cookie value as query string , how to check from that cookie value that particular use is authenticated or not ?
This could be very straight forward for some of you, but I got caught up. I am doing very simple test - browsing from IIS Manager to see the default page or "under Construction", however I am being challenged to provide my login credential . When I provide my login credential, I am able to see the default page. I wanted to see the default page without providing my credential since Enable anoymous access + basic authentication I am simply wanted to see the default page asit is working on other servers except this one. I have included screen print to make sure may question is clear.
I set authentication mode to Windows in the web.config and I enable Windows Authentication and disable the Anonymous Authentication in IIS 7 on win 7, but HttpContext.Current.User is always null.It works fine when I host the web app in IIS 6.0.
I have a web farm web project, and want to make sure windows authentication is working well without any problem in web farm, can any one give me some web sites or information about that?
I needed information regarding the capabilities & integration of AzMan tool with Asp.net.Currently, I got a Sharepoint 2007 website along with ASP.NET 2008 where I am using Form Based Authenication.Now, the requirement is any user within a domain registered in AD should be able to login in website through intranet.
Can I acheive this using AzMan, or I need to create two websites one with FBA for internet users and the other one for the intranet users with AD authenication. Also my intenet website is deployed and in use where usermapping and roles are already created, so using this tool what will be the impact on existing webiste.
I have one login page which contains popup control for entering login details. When user successfully logged in then Itemlist page will get open and login page also remains open (as per my requirement) with some text. Now if user reloads the login page then it will open second Itemlist page though first Itemlist page is opened. So i want to check on login page that if Itemlist page is already open then it doesn't open second itemlist page.
I'm trying to hit my intranet website and get it to run a simple sql query as the windows user I'm logged in as.
When I debug through Visual Studio, everything works great. When I hit the webserver though, I get an error from sqlconnection saying, "ERROR:Login failed for user 'YOUR_DOMAINYOUR_WEBSERVER_NAME'."
Request.ServerVariables[AUTH_USER]: YOUR_DOMAINUserBob System.Security.Principal.WindowsIdentity.GetCurrent().Name: NT AUTHORITYNETWORK SERVICE Page.User.Identity.Name: YOUR_DOMAINUserBob System.Threading.Thread.CurrentPrincipal.Identity.Name: YOUR_DOMAINUserBob
I have developed the authenticated rss feed using the basic http authentication for my site.I also have the admin module for the site which uses the Asp.net Forms Authentication .Both are in the same project.When i turn on the forms authentication module to None in my web.config.My rss feed authentication works fine(the browser pop up the dialog box for the username and password) and upon entering the username and password the rss feed gets displayed.But with forms authentication turn on when i click the rss feed link i am getting redirected to the administrator login page.
If i set my authentication mode to none than the feed works like dream but the admin module do not work as it uses forms authentication.
How can i resolve the conflict for that one.I am using the asp.net mvc filter on my feed contoller to pop up the dialog box for the username and password.
I'm developing an internal booking sytem. Users log in to the sytem and can view existing bookings and search for bookings. They can also create new or edit existing bookings. When completing such actions I need a confirmation prior to completing the booking or updating the recorded. The confirmation is based on a reauthentication of the user.... in otherwords he needs to enter his passord again.
How can I achieve this? The system is internam and I'm using Forms Authentication. I an also using roles as som of the admin forms can only be viewed by administrators.
I've a user registration page in which i take email address as input by user. But i wanna check that the given email address is a valid (I mean registerd address or not) or not. It's not syntax validity check.I want to check the availability that means the given address is there in web or not.
My requirement is that I have a few hyperlinks on a webpage and when the user clicks on these hyperlinks I should redirect the user to an asp.net web page(Default.aspx) in a different website.
For the 1st time when the user clicks on one of the hyperlinks it will launch a new browser window with the Default.aspx loaded and then if the user clicks on some other hyperlink I want to redirect the user to the existing browser window(in which deafult.aspx is already loaded)with the content related to this particular hyperlink loaded,instead of launching a new browser window/tab.
But I am not sure of how to achieve this.I wonder if I can add some js to the asp.net Default.aspx page to achieve this.
The reason i need to do this is because of Facebook Connect - which is another story, so i'll save you the drama for that. =) Anyway, i have this function that runs on window.onload:
function userAuth() { SomeFunctionWhichGetsFacebookCookes(); if (!loggedInUsingFormsAuth && loggedInViaFacebook) { window.location.reload(); // refresh page, so i can perform auto-login } }
So, i need help in getting the flag "loggedInUsingFormsAuth". I dont care what is in the cookie, just need to know if the current user is authenticated. Why am i doing this? Well, on window load, if the user is logged into Facebook but not on my website (according to the Forms Authentication cookie), i want to reload the page - which allows my ASP.NET website to read the Facebook cookies in the HttpContext and log the user in. I need to do this in JavaScript, because i dont have the Facebook cookies until i call "SomeFunctionWhichGetsFacebookCookies" - which can only be done in JavaScript.
So, how can i work out if the current user is authenticated via JavaScript? Do i have to manually traverse through the cookies, find the one i want, and inspect it? Is this a safe thing to do? Or should i alternatively write out the flag to the client from the server using RegisterClientScript?
i have an application and a user must log-in before he/she can access pages. now once the user logs in i keep the user details in a session variable (say Session["CurrentUser"]).now if a user tries to jump to a page directly i will check if the Session["CurrentUser"] has a value or not...if not then the user will be directed to the login page...my problem is that i have done this or rather say written this "Checking Code" on almost all the pages.
It looks like JavaScript does not have access to authentication cookies ('ASP.NET_SessionId', '.ASPXFORMSAUTH') in the http headers I can see cookies but document.cookie object does not have them.
