change and Reset LDAP user Password with C# code.

Question

_{Thursday, June 26, 2014 9:32 AM}

Hi Dear All,

I have been  trying to change and reset password of user in LDAP.

I tried several ways to accomplish  the task but could not succeed , please Guid me the correct way to accomplish this

I need urgent Help.

Thanks!

All replies (3)

_{Thursday, July 3, 2014 5:58 AM ✅Answered | 3 votes}

Hi,

You can try some codes below:

public static string ChangePassword20(string adminUser, string adminPassword,
    string container, string domainController, string userName, string newPassword)
{
    const AuthenticationTypes authenticationTypes = AuthenticationTypes.Secure |
        AuthenticationTypes.Sealing | AuthenticationTypes.ServerBind;

    DirectoryEntry searchRoot = null;
    DirectorySearcher searcher = null;
    DirectoryEntry userEntry = null;

    try
    {
        searchRoot = new DirectoryEntry(String.Format("LDAP://{0}/{1}", 
            domainController, container), 
            adminUser, adminPassword, authenticationTypes);

        searcher = new DirectorySearcher(searchRoot);
        searcher.Filter = String.Format("sAMAccountName={0}", userName);
        searcher.SearchScope = SearchScope.Subtree;
        searcher.CacheResults = false;

        SearchResult searchResult = searcher.FindOne(); ;
        if (searchResult == null) return "User Not Found In This Domain";

        userEntry = searchResult.GetDirectoryEntry();

        userEntry.Invoke("SetPassword", new object[] { newPassword });
        userEntry.CommitChanges();

        return "New password set";
    }
    catch (Exception ex)
    {
        return ex.ToString();
    }
    finally
    {
        if (userEntry != null) userEntry.Dispose();
        if (searcher != null) searcher.Dispose();
        if (searchRoot != null) searchRoot.Dispose();
    }
}

Usage:

ChangePassword20(@"DOMAIN\Administrator", "password", "DC=Domain,DC=COM",
    "domainControllerName", "userName", "newPassword");

Best Wishes！

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_{Thursday, June 26, 2014 10:49 AM}

If you can share the code, we can try helping you

Muthukrishnan Ramasamy
net4.rmkrishnan.net
Use only what you need, Reduce global warming

_{Thursday, June 26, 2014 11:08 AM}

Hello ,

i am getting the error at FindOne()  method. is there i am missing , please help me.

string AdminAccountName = "admin";
                string AdminPassword = "pwd";
                string Username = "user1";
                string NewPassword = "password";
                string sPath = "LDAP://path"; //This is if your domain was my.domain.com
                DirectoryEntry de = new DirectoryEntry(sPath, "" + AdminAccountName + "", "" + AdminPassword + "", AuthenticationTypes.Secure);
                DirectorySearcher ds = new DirectorySearcher(de);
                string qry = string.Format("(&(objectCategory=person)(sAMAccountName={0}))", Username);
                ds.Filter = qry;
                ds.Sort.PropertyName = "CN";
                try
                {
                SearchResult sr  = ds.FindOne();
                DirectoryEntry user = sr.GetDirectoryEntry();
                user.Invoke("SetPassword", new object[]{"" + NewPassword + ""});
                user.CommitChanges();
                }
                finally
                {
                }