Connection string to connect to Active Directory using LDAP

Question

my system admin gave me this:

Domain : capp.net USER : capp\dhr2

Pass : admin@12345

what will the connection string be?

I am very very new to adfs. So i tried this:

<add name="ADConnectionString"
      connectionString="LDAP://capp.net/CN=dhr,DC=capp,DC=net"  />

<authentication mode="Forms">
  <forms name=".ADAuthCookie" timeout="43200"/>
</authentication>
<authorization>
</authorization>

<membership>
  <providers>
    <clear/>

    <add name="MyADMembershipProvider"
     type="System.Web.Security.ActiveDirectoryMembershipProvider"
     connectionUsername="cn=dhr2"
     connectionPassword="admin@12345"
    connectionStringName="ADConnectionString"/>

  </providers>
</membership>

I am always getting this error: Unable to establish secure connection with the server

I am doing someting wrong with the connection string. I just dont know how to fix it.

Answer 1

Whenever I've accessed AD from .net I've done the following:

var directoryEntry = new DirectoryEntry("LDAP://capp.net");
directoryEntry.Username = "capp\dhr2";
directoryEntry.Password = "admin@12345";

Then you can query "AD" using the DirectorySearcher.

var directorySearcher = new DirectorySearcher(directoryEntry);

...

Answer 2

Thanks to everyone for your help and support. The correct address in my case was:

LDAP://192.168.0.146/CN=USERS,DC=capp,DC=net

What i didnt realize in the beginning was that i was trying to connect to Active Directory in a different domain than my current domain. So the Ip address was the missing part. thanks a million to Luis who realized that there was something wrong was with the domain.

And thanks Shadow Walker for explaining the ldap connection string in more details.