Hi Guys
First of all i want to say hi to everyone. I'm making a simple Active Directory application that you can add and remove users but when i try to run it in a webpage the server raises a message saying "The specified domain either does not exist or could not be contacted". I have about 1 week trying to figure out why is doing that. I tried to run the same example code in a windows application form but work's fine. But when i tried to write an ASP.NET error i receive this connection error (i guess is maybe the protocol LDAP that get's the error but i don't know why). can somebody please help me??. I write an Visual Basic NET Active directory example to check this error. In Windows Forms and vbscript Works fine. In ASP.NET doesn't
Imports System.DirectoryServices
Dim a As New DirectoryEntry("LDAP://CN=
Dim b As New DirectoryEntry("LDAP://CN=
Dim isMember As Boolean = Convert.ToBoolean(a.Invoke
If isMember Then
MsgBox("User " & b.Properties("cn").Value & " is already a member of the group")
'
' Remove the user from the group by invoking the remove method
'
a.Invoke("Remove", New Object() {b.Path})
Else
'
' Add the user to the group by invoking the Add method
'
a.Invoke("Add", New Object() {b.Path})
MsgBox("User added")
End If
'
' Cleanup our allocated objects
'
If Not IsNothing(b) Then
b.Dispose()
End If
If Not IsNothing(a) Then
a.Dispose()
End If
Like i say, this code works in visual Basic .NET Windows Forms and VBScript, but doesn't work in ASP.NET webpages. I need it in webpage because is an extension of a website that i'm creating
Best regards
ZeldaDX
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Hi ihenry
Thanks for your answer. I'm still checking your suggestion but for now i don't have any result. But first let me check my permissions so i can be sure that i have enough priviledges to access AD.
As soon as i found something i let you know
Thanks for your answer and i tell you as soon as i have an answer
Best regards
ZeldaDX
Hi iHenry:
Look i found the problem that cause this connection error:
1--on the LDAP path i changed to this
LDAP://my.domain.com/CN=Te
2--after that i add my username and password as you say in your last post:
a.Username = "theDomain\theUsername"
a.Password = "thePassword"
after that i make a simple web application like this to test the connection
Imports System.DirectoryServices
Dim a As New DirectoryEntry("LDAP://my.
a.Username = "theDomain\theUsername"
a.Password = "thePassword"
response.write(a.name & " " & a.guid.tostring)
When i run this code the error message dissapears and works without problems.
But when i try to run a similar code like the one i post on my question appears this error message:
Exception from HRESULT: 0x80005000.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Runtime.InteropServ
Source Error:
a.Invoke("IsMember", New Object() {b.Path})
end sub
this is the test code that makes me this error:
Imports System.DirectoryServices
Dim a As New DirectoryEntry("LDAP://my.
Dim b As New DirectoryEntry("LDAP://CN=
dim IsMember as boolean
a.Username = "my\Username"
a.Password = "Password"
isMember = a.Invoke("IsMember", New Object() {b.Path})
If isMember = True Then
Response.Write("valid user")
Else
Response.Write("Not a valid user")
End If
Hope that somebody can help me or give me a clue of what i'm doing wrong with
Thanks in advance
ZeldaDX
Hi again iHenry
Only to say thanks again and to say that i found the problem of that error.That was only to put the directoryentry of the user like this:
Dim b As New DirectoryEntry("LDAP://my.
And now this one works like a charm
Thanks to everyone
ZeldaDX
Business Accounts
Answer for Membership
by: ihenryPosted on 2006-08-24 at 09:34:12ID: 17383059
The problem could be as simple as lack of permission to access the domain. Depending on IIS security settings, a web application typically runs anonymously. Here I assume that your webpage is running under aspnet user or network service user (or IUSER_MACHINE, if you enable impersonation). This account has very limited access to external resources. It's also possible your IIS server used different authentication method, e.g. basic or iwa. In either case, the user account of which your web application is running under does not have enough permissions to access the active directory server.
Now, how to deal with this error. Well, first I need to make sure that my guess above is right. Try to hard code a user name and password. If the error dissapears, please check back here cause I'll have more suggestion to make.
<off topic>
Come to think of it, active directory was my favorite topic and it's been a while since my last post in this forum :o)
</off topic>