Re: The server is not operational.

KentZhou — Tue, 17 Jun 2008 20:28:19 GMT

The LDAP connection string is oaky:

LDAP://Domainservername/OU=ABC,DC=abc,DC=ca

Things I don't understand is: at first time. LDAP://Domainservername/OU=ABC,DC=abc,DC=ca worked. Then it didn't work sometime later. Then I changed to

LDAP://domainservername/OU=ABC,DC=abc,DC=ca

It worked again. Then sometime later it didn't work again. Then I changed to

LDAP://Domainservername.abc.ca/OU=ABC,DC=abc,DC=ca

It worked again. It's crazy!

Re: The server is not operational.

bullpit — Tue, 17 Jun 2008 20:23:42 GMT

Can this be an issue?

http://support.microsoft.com/kb/325322

Re: The server is not operational.

raghu1 — Tue, 17 Jun 2008 20:20:14 GMT

What is the value of path? What was the value when it was working ? This I am assuming is the LDAP path and should be something like : LDAP://YourDomainName,DC=..DC=..

The server is not operational.

KentZhou — Tue, 17 Jun 2008 16:19:46 GMT

I have a testing code for AD. It works fine for a while. But next day I run it again and got the error

An exception of type 'System.Runtime.InteropServices.COMException' occurred in System.DirectoryServices.dll but was not handled in user code

The server is not operational.

What's the possible reason? The code is copied from this forum as below:

Dim context As HttpContext = HttpContext.Current
Dim userDS As DataSet = CType(context.Cache(sFilter), DataSet)

            If (userDS Is Nothing) Or Not useCached Then
                Dim deParent As DirectoryEntry = New DirectoryEntry(path)    '''Actually, the error caused at this line
                deParent.Username = myusrname
                deParent.Password = mypwd
                deParent.AuthenticationType = AuthenticationTypes.Secure

                Dim ds As DirectorySearcher = New DirectorySearcher(deParent, sFilter, columns, SearchScope.Subtree)
                ds.PageSize = 1000
                Using (deParent)
                    userDS = New DataSet("userDS")
                    Dim dt As DataTable = userDS.Tables.Add("users")
                    Dim dr As DataRow

                    For Each prop As String In columns
                        dt.Columns.Add(CType(prop, String))
                    Next

                    Dim src As SearchResultCollection = ds.FindAll()    ''''the error was thrown out at this line
                    Using (src)
                        For Each sr As SearchResult In src
                            dr = dt.NewRow()
                            For Each prop As String In columns
                                If (sr.Properties.Contains(prop)) Then
                                    dr(prop) = sr.Properties(prop)(0)
                                End If
                            Next
                            dt.Rows.Add(dr)
                        Next
                    End Using
                End Using
                context.Cache.Insert(sFilter, userDS, Nothing, DateTime.MaxValue, TimeSpan.FromSeconds(180))
            End If

Active Directory and LDAP

Re: The server is not operational.

Re: The server is not operational.

Re: The server is not operational.

The server is not operational.

The server is not operational.