Login in asp.net - C# with Active Directory fails when I publish the Application in a Domain www.mydomain.com

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I've made a Login with Active Directory in Asp.net and C#, in my Local Pc it works fine, I can Login with Active Directory Users, but after I published the Application in the domain www.mydomain.com it doesn't work.
I don't know if this is happening because to get the connection with Active Directory is necessary to be in the same network of the company, or maybe the company have to give some permissions to LDAP connection to make it public.

This is my code to connect with Active Directory:

C#

user = this.MainLogin.UserName.ToUpper();
pass = this.MainLogin.Password;
domain = "gruposcare";
path = "LDAP://gcsbog-dc00.gruposcare.org.co";

string domainAndUsername = domain + @"\" + user;

DirectoryEntry entry = new DirectoryEntry(path, domainAndUsername, pass);

try
{
    DirectorySearcher search = new DirectorySearcher(entry);
    SearchResult result = search.FindOne();
    
    if (result == null)
    {
        //Authentication Failed
    }
    else
    {
        //Authentication Right
    }
}
catch (Exception ex)
{
    return false;
}

Thanks for your answers.

Posted 23-Feb-15 8:27am

judah9107

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ZurdoDev 23-Feb-15 14:37pm

What's the error?

judah9107 23-Feb-15 17:27pm

Request for the permission of type 'System.DirectoryServices.DirectoryServicesPermission, System.DirectoryServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' failed.

judah9107 23-Feb-15 14:44pm

When I test this Login Form in LocalHost it works fine, I mean compiling through VS2010, but after publishing this Login Form in the domain (www.mydomain.com) the authentication doesn't work

judah9107 23-Feb-15 14:50pm

Maybe it's because when I publish, the network where the application is hosted change, when I test it compiling in my local Pc the Application is in the same network that the company but after publishing I think the Login Form is not in the same network that the company, but I'm not sure if this is the error.

Richard Deeming 23-Feb-15 15:26pm

The server which hosts the application will need to be able to talk to a server in the AD domain, and will need suitable DNS configuration so that it can resolve the server name. Your network administrators should be able to help you resolve the issue.

judah9107 23-Feb-15 17:26pm

That's the error shown:
Request for the permission of type 'System.DirectoryServices.DirectoryServicesPermission, System.DirectoryServices, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' failed.

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anujshaarma · Answer 1 · 2015-02-23T17:43:00

Hi, you place your logic in a service or publish it on the server. Instead of writing the complete logic on aspx code behind. Also, add below filters in you code:

user = this.MainLogin.UserName.ToUpper();
pass = this.MainLogin.Password;
domain = "gruposcare";
path = "LDAP://gcsbog-dc00.gruposcare.org.co";

string domainAndUsername = domain + @"\" + user;

DirectoryEntry entry = new DirectoryEntry(path, domainAndUsername, pass);

try
{
DirectorySearcher search = new DirectorySearcher(entry);
search.Filter = "(SAMAccountName=" + username + ")";
search.PropertiesToLoad.Add("cn");
SearchResult result = search.FindOne();

if (result == null)
{
//Authentication Failed
}
else
{
//Authentication Right
}
}
catch (Exception ex)
{
return false;
}