Active Directory and LDAP

Re: Cont: A local error has occurred (formatting fixed)

achenar — Fri, 28 Aug 2009 01:10:30 GMT

Just FYI, I had this "local error" in a one-way trust dev environment: I was trying to search - using FindOne() - for a user in the downstream domain.

I fixed this by ensuring the upstream server's primary DNS was pointing to its own domain and the alternate DNS was pointing to the downstream domain.

Re: Cont: A local error has occurred (formatting fixed)

dorothyDorothy — Wed, 26 Aug 2009 12:57:09 GMT

Thanks for the tip. I have a windows application which was giving me a System.DirectoryServices.DirectoryServicesCOMException of "A local error has occurred" this was due to the user account under which the application was running being locked.

Re: Cont: A local error has occurred (formatting fixed)

sashidhar — Thu, 25 Jun 2009 15:55:15 GMT

One potential reason would be that the accound that the membership provider is running on is locked. Unlock the user, and you should be fine.

Re: Cont: A local error has occurred (formatting fixed)

Chris128 — Mon, 01 Dec 2008 10:25:14 GMT

I had this problem today when trying to access a windows 2003 AD domain from my vb.net app and this page was pretty much the only thing I found on google when searching for a solution. I eventually found a solution myself so thought I would post it just in case it helps anyone else. The way I got it working was to define the Authentication Type of the DirectoryEntry object as Secure. So for example, instead of this:

Dim MyUserDE As New DirectoryEntry(ldappath)

I now do this:

Dim MyUserDE As New DirectoryEntry(ldappath, username, password, AuthenticationTypes.Secure)

Hope that helps someone out.

Chris

Re: Cont: A local error has occurred (formatting fixed)

vbNullString — Tue, 25 Nov 2008 19:21:37 GMT

Hi,

I'm getting exactly the same error. Have you figured out how to resolve the issue?

Cont: A local error has occurred (formatting fixed)

andersoyvind — Wed, 04 Jul 2007 12:24:30 GMT

Expanding the error description, in case someone notice something familiar:

System.DirectoryServices.DirectoryServicesCOMException was unhandled by user code Message="A local error has occurred.\r\n" Source="System.DirectoryServices" ErrorCode=-2147016645 ExtendedError=-2146893052 ExtendedErrorMessage="" StackTrace: at System.DirectoryServices.DirectoryEntry.Bind(Boolean throwIfFail) at System.DirectoryServices.DirectoryEntry.Bind() at System.DirectoryServices.DirectoryEntry.get_AdsObject() at System.DirectoryServices.DirectorySearcher.FindAll(Boolean findMoreThanOne)

at System.DirectoryServices.DirectorySearcher.FindAll()

etc... ExtendedError gave a friend of mine the idea of System Error 772 :ERROR_ROWSNOTRELEASED - The data provider requires that previously fetched data is released before asking for more data. I've inserted a dispose on the DirectorySearcher, but the error occurred once again just now. In addition to the use of the DirectoryServices framework, I use System.Web.Security.ActiveDirectoryMembershipProvider to provide windows authentication to my web application. The following defines my setup in web.config.

<membership defaultProvider="ADMembershipProvider">
<providers>
<clear/>
<add name="ADMembershipProvider" type="System.Web.Security.ActiveDirectoryMembershipProvider, System.Web, Version=2.0.0.0, Culture=neutral,PublicKeyToken=b03f5f7f11d50a3a" connectionStringName="ActiveDirectory"/>
</providers>
</membership>

The connectionString-name is pointing to an LDAP-connectionString defined under the connectionStrings section of the web.config.

It really bothers me that I have to reset my computer every hour, so any tip is appreciated ofcourse.

Anders Ø

A local error has occurred (formatting fixed)

andersoyvind — Tue, 03 Jul 2007 14:50:22 GMT

I'm making an intranet webapplication in ASP.NET, using Windows auth and accessing Active Directory using the LDAP-pattern found in one of the stickies on top of the LDAP-threads-list here on forums.asp.net.

public static DataSet FindUsers(string sFilter, string[] columns, string path, bool useCached);

I've got a domain controller installed by my side, and using the following in a test-application:

string filter = "(objectClass=*)";
string[] columns = new string[]{"sn", "sAMAccountName", "cn"};
string path = "LDAP:///"; DataSet ds = FindUsers(filter, columns, path, false);
dataGridView1.DataSource = ds; dataGridView1.AutoGenerateColumns = true;
dataGridView1.DataMember = ds.Tables[0].ToString();

I fetch stuff easily, and the DataGridView is filled with it. Nice. BUT. Even if it works right now, tomorrow, or after some amount of hours (not sure how many though), I get DirectoryServicesCOMException thrown at me, saying:

"A local error has occurred.". It's triggered by the DirectorySearcher.FindAll()-function. Since it's working now, I don't have the exact output in front of me. Google gives me nada on the specific error message, and I get the error message in both my web app and the test-app I mentioned above.

Anyone with experiences on this? I've set up the domain controller myself, and started wondering if THAT is a potential error source.

Thanks in advance, Anders Øyvind