We created a Web Site in our IIS that points to a folder with several simple HTML pages. The application pool is set to asp.net v4.0.
Only certain users can view these html pages, but everyone that logs on to the company's intranet can view them. I want to implement authorization rules, but the icon to add them is not displayed in IIS manager, even though Management Services is installed according to this MSDN link.
Is it possible to add these authorization rules without doing it through the IIS Manager? I know it wan be done by adding several keys to web.config, but what happens if web.config doesn't exist? This website doesn't have anything related to asp.net.
The server is running Windows Server 2008 and IIS 7.
Wanted to add that I created a web.config for this particular folder that is supposed to block everyone, but nothing changed:
<configuration>
<system.web>
<authorization>
<deny users="*"/> // deny everyone else
</authorization>
</system.web>
</configuration>
Related
How can I prevent a User to see the file system in asp.net ? Do I need to change something in my IIS settings or on my Web.config ?
Thanks for help and fast answer
Lets starts from the fact that a remote user to been able to see a file is must know the full path of it on the browser.
To prevent that you disable the directory browsing and/or you have a default.aspx page on each directory. When there is a default page, then the IIS show that page.
Now the second security measure is not let the asp.net application user that runs yous site to have accesss to any file beyond the site running files.
The site is run under two accounts. One for the IIS, and one for the Pool. both this accounts must have limited access only to your site directory and only for read, and for write only on the files/directories that needed to your application.
Additional you can use a web.config on some directories to prevent the run of any aspx page as:
<configuration>
<system.web>
<authorization>
<deny users="*" />
</authorization>
</system.web>
</configuration>
but this is not prevend to see files that are not pass from asp.net (like images)
Also you can read
How to find out which account my ASP.NET code is running under?
I'm currently working on a page within one of my company's internet sites that is in response to some production issues we have. The page will be published with the rest of the web site to our DMZ, however I'd like to set-up some quick authentication so only users on our domain (assuming they access the site internally) can access the page. I'd like to use Windows authentication to do so.
Is there a quick way to accomplish this?
If I understand the question correctly, you want to enable security just on one page in your application - not the entire app.
Under IIS, you can manage the security settings on a page by page basis. In the IIS manager, pick the page, and change the security settings so that anonymous is off, and only Windows auth is accepted. You should get prompted for a login when you visit that page.
From Scott Gu's blog
To enable Windows Authentication
within an ASP.NET Application, you
should make sure that you have
“Integrated Windows Authentication”
(formerly called NTLM authentication)
enabled within IIS for the application
you are building. You should then
add a web.config file to the root
directory of your ASP.NET application
that contains an
section which sets the mode to
“Windows”.
You should also then add an
section to the same
web.config file that denies access to
“anonymous” users visiting the site.
This will force ASP.NET to always
authenticate the incoming browser user
using Windows Authentication – and
ensure that from within code on the
server you can always access the
username and Windows group membership
of the incoming user.
The below web.config file demonstrates
how to configure both steps described
above:
<configuration>
<system.web>
<authentication mode="Windows" />
<authorization>
<deny users="?"/>
</authorization>
</system.web>
</configuration>
EDIT:
You can apply the auth settings to just a path in this way:
<location path="mypath.axd">
<system.web>
<authorization>
<allow roles="MyRole, AnotherRole" />
<deny users="*" />
<deny users="?" />
</authorization>
</system.web>
</location>
You can simply use Windows Authentication settings in IIS. Just turn off Anonymous Access in IIS and set your NTFS permissions on the Web folder to the users whom you want to have access to the site. Your IIS admin should be able to handle this quite easily.
I've created web site in c:\website folder using visual studio 2010. Then, I've created web site in IIS 7.5 that maps to that folder. However when I access Default.aspx page and request to css is issued like
http://localhost/webapp/Styles/Site.css
it's redirected to something like this:
http://localhost/website/Account/Login.aspx?ReturnUrl=%2fwebsite%2fStyles%2fSite.css
Any ideas what is going on?
Thanks , Paweł
It looks as if you have restricted security settings in your web.config? Check out the
attribute in this file.
If it looks anything like this:
<authorization>
<deny users="?"/>
</authorization>
Then this is likely the issue. Alternatively if you are using Windows authentication then review the user account settings within IIS.
I have an asp.net (dynamic data) website set up as an application in a subdirectory of another site. This site requires different security settings from the top level site. Something like:
<authorization>
<allow roles="ADMIN"/>
<deny users="*"/>
</authorization>
These settings are ignored in the sub site. However, they work on the top level site, but even when set on the top level site, they are not inherited by the sub-site, and it's freely accessible. What could cause these settings to be ignored? I've tried adding:
<location path="." inheritInChildApplications="false">
to the top level web.config and then setting the above authorization rule in the sub site, even tried just denying all users. When visiting the site it looks like: http://mysite/mybrokensite
I am using windows authentication.
I think the key thing is this
website set up as an application in a
subdirectory of another site
If it's a separate application within IIS it should have it's own web.config file and the security settings can be set from there. So you'll have one web.config for the main site and one for the subsite. really they are two applications.
If it's just a subfolder under your website then this doesn't apply. It depends how you've set it up under IIS. If it's a seperate app then the icon will be a world/cabbage type icon. If it's a sub-folder they the icon will be ... well a folder.
To elaborate on Tim's answer, make sure in IIS that it is set up as a virtual directory. Look at the property page for that directory in IIS Admin, Directory (or Home Directory) tab. If the Application label is greyed out, hit the Create button. Now IIS will load the web.config from that directory.
I typed up a summary since many were facing the same situation regarding subfolder authentication.
Subfolder Authorization
ASP.NET can only have a single
authentication mode for one
application.
The different
applications CANNOT share resource
among them.
Scenario
Let's say the home page should not prompt login dialog. It should let users pass through without whatever login is. However, in the same applicatiopn, in a different folder presumably, another page needs to check user permission against database table using user network login ID. By default IE treats all web site with only hostname a Intranet. By its default intranet setting, it will not prompt the login dialog and pass user login and password to the application if Windows Authentication is used. However, the tricky party is, if the application has an actual domain, IE will think it is an Internet site, and it will prompt the login and password if Windows Authentication is used.
The only way to not to promopt login dialog for Internet site using Windows Authentication, is to also turn on the anonymous authentication in IIS. However, you will lose the ability to capture the login info because the Anonymous has precedence over the Windows Authentication. The good news is there is a way to resolve that issue. If an application subfolder needs to capture the login information, you will need to overwrite the parent authorization in Location element in web.config.
1 In IIS, configure Authentication as follows:
Enable Anonymous Authentication,
Enable Windows Authentication
2 Add the followings in Web.Config.
<authentication mode="Windows" />
<authorization>
<allow users="*" />
</authorization>
<!-- secured is the relative subfolder name. deny anonymous user, so only the authenticated login will pass through -->
<location path="secured" allowOverride="true">
<system.web>
<authorization>
<deny users="?" />
</authorization>
</system.web>
</location>
How would I go about setting different authentication tags for different parts of my web app? Say I have:
/
/folder1/
/folder2/
Would it be possible to specify different <authentication/> tags for each folder?
I want folder1 to use Windows authentication but folder2 use Forms authentication.
I tried doing in a <location/> tag but it doesn't look like you can have <authentication/> tags in a <location/> tags, at least not via VS 2008 with it's built in webserver.
This errors out saying - Error 3 It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS.
<location path="/folder1">
<system.web>
<authentication mode="Forms" />
<authorization>
<deny users="?"/>
</authorization>
</system.web>
</location>
You can only have <authentication /> on the top level web.config. You may have to create multiple applications. ie you can create an application within an application and use different authentication modes in each one.
I think you can set the forms authentication authorization on folder1 to
<allow users="*" />
then control the windows access via setting windows permissions on the folder.
I haven't tried it, but I can't think of why that wouldn't work.
These settings are only valid at the root level of your ASP.Net application. To use different settings in a sub folder you will need to go into IIS and set that sub folder to be a new application.
Once you done this, the folder will have a different icon in the IIs manager. Inside your subfolder, create a new web.config file and add the new authentication settings there.
More information available at Creating Applications.