Causes Of "Server Not Operational" Errors In LDAP?
Jun 30, 2011
I've searched Google for days, but cannot come up with any answers. A week ago, we did a server migration. We have a clustered environment where the following code works on one server, but not the other (and I cannot get it to work on my local machine for our non-clustered development environment):
rootDSE = New DirectoryEntry("LDAP://nonfullyqualifieddomain/RootDSE")
If I try the above, I get the generic error mentioned in the question title (Again, it works on one of the servers, but not the other).However, when I do this the DirectoryEntry object is instantiated:
rootDSE = New DirectoryEntry("LDAP://fully.qualified.domain", adUserId, adPassword, AuthenticationTypes.Secure)
Based on what I see online, my best guess is that it has something to do with permissions or configurations, but I'm not familiar with the server administration side of the application.
I am very new to vb, I know there is an error somewhere, I had an assignment which stated that if a number was < 101 or > 500 and the answer is correct the output should be, for example-123, if the answer was wrong then the message output should be wrong number <101>500. Everytime I type in a number(no matter what the number) and click on my check button I get the output message. If at all possible, can you please assist. My professor gave the following example, but I am still not getting it:
Dim strInteger As String = "52.801" Dim dblNumber As Double dblNumber = CDbl(strInteger)
So my project works exactly as I want it to. But I have these 2 similar warnings when I Build. I would like to understand and get rid of if possible. [code]
I'm developing a application and it contain server and client. Whenever client application or client gets any error or exception, error message should writes to error.log file placed in Server. Assume there is no shared driver or there is no any way of entering server credential user name and password. I have done a testing with listening socket and once application convert as Windows Service, it does not work anymore. But as UI it work fine.
I am in the following situation: I have been requested to write an application for managing where we have customers - this must flag up when we try to add a customer too close to another one, so must be able to calculate distances based on post codes.I have chosen to use ASP.Net VB because I am fairly good at that and I like that the browser does all of the layout for me (using Java or C# would mean having to position each element individually).I have copied a few files from the company's website (which I also wrote) and modified them to account for the database structure we need for the new app.I have designed the database to account for the requirements of the new app.I have set up a website in IIS on port 81 through which to view the app.
I am trying to connect to SQL Server Express locally using VB.NET 2005. I pulled my connection string directly from the app.config file. When I run, I get NO errors and the connection states returns open, however the commands are not being processed.
Imports System.Data Imports System.Data.SqlClient Public Class frmAddMovie
I receive three errors using the following function:
Private Sub readWebpage(ByVal url As String) Try Dim req As System.Net.WebRequest = System.Net.WebRequest.Create(url) Dim resp As System.Net.WebResponse = req.GetResponse
[code]....
The remote server returned an error: (500) Internal Server Error. The server committed a protocol violation. Section=ResponseStatusLine
I have sql server2000 encypted stored procedure. I can not modify them. Typicaly all the procedures manipulate row by row different tables using cursors etc. When the stored procedure is executed at the Query Analyser screen, I see error being thrown in between but the procedures continues till all the records have been processed. This behavior is acceptable to the client. I now need to automate the process using VB.net 2002 windows application. I call the procedure from vb.net but the program throws runtime error on the 1st occurance of a error in the stored procedure.
I am using VB.net code and SQL server 2005.I am havng below code for sending email in my vb.net code.
Protected Sub ibtnSendInvites_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles ibtnSendInvites.Click Try Dim emailList As New List(Of String) For Each curRow As GridViewRow In GridView1.Rows
[code].....
Now my problem is that some time if emailaddress is not valid or SMTP server is responding my application get hangs. I want to log my errors generated by my SMTP server in table or any log file it would be good if I can send back email to admin with the details of error occurred.
I am having a problem with using the SQL Server 2008 FileStream function with an Excel 2007 spreadsheet. I can store an Excel 2003 format spreadsheet and bring it back with no problem. When I bring the Excel 2007 format spreadsheet back from the DB I get a message that there are errors in opening the Spreadsheet and the Excel App asks if I want them repaired before it is displayed. I answer yes and the Spreadsheet is renedered perfectly. Could this be a FileStream problem or an Excel 2007 problem?
I am currently adding keyboard shortcuts to our web application, so from JavaScript.So far, it has consisted mostly in triggering the click events of buttons already exposed in the user-interface.Now, I would like to add another one which redirects to another page.The new page URL needs to be generated based on elements from the source page query string.Basically, I have a date in the query string and I want to generate a new URL for the next day.
Tried seemingly everything here to get this to work but I keep getting "Keyword not supported" errors for just about every iteration of dsn-less connection strings I can find out there in internet land, two are shown below.
Public cnSystem As New SqlClient.SqlConnection Public Sub ConnectToSQL() Dim sConnectionString As String[code]......
what is the proper connection string for a DSN-less connection to a SQL server using the data objects I am using?
I have a .net application that uses customerrors web.config module to display meaningful messages for errors. It works without any issues for 500 errors/exceptions caused by non-ajax and ajax components (updatepanel). However, in a scenario where updatepanel's asynchronous request times out, there is no error raised at all. I was able to see the timeout in firebug and come up with a solution that would at least display the error message as an alert and then redirect the user to the 500 error page using javascript but it's not quite doing what the rest of the application does in case of an unhandled errors like these. I basically just want everything to go through "LogEvent" mechanism so based on the severity of the error, it does the necessary work.This 500 error page doesn't have anything in the Server.GetLastError() for these timeout scenarios. Is this an expected behaviour? Can it be changed so I do have access to these timeouts in Server.GetLastError() OR maybe just run this error through "LogEvent" mechanism? Is there a better/more graceful way to handle this issue?
Below is my code to give you an idea, not exactly what I have in my application but pretty close.
there is a difference between the implementation of the FindAll() method on the DirectorySearcher object in C# and VB.NET? From my understanding they both get "compiled" to MSIL and get processed by the CLR the same way. Going against our ADAM/LDAP system the below C# code throws an error and the below VB.NET does not.Here is the C# exception stack:
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()
Here is the C# error:
System.Runtime.InteropServices.COMException was unhandled Message="The parameter is incorrect.
I have a code that I found as a VBS and ported it to VBA and works perfectly, but I am now trying to run on VB.NET 2010 but am getting a Path not found error. I am trying to get the complete name and e-mail from the Acitive Directory from the current user.[code]
I have not been able to successfully verify a user with LDAP for an ASP.NET web application. I have done so on our own network against Active Directory, but this is against a server outside of our network that is OID (Oracle Internet Directory).Usually, I use the following code with no problem.
Dim myDirectoryEntry As New System.DirectoryServices.DirectoryEntry("LDAP://1.2.3.4:999/OU=SomeOU,DC=Something,DC=com") myDirectoryEntry.AuthenticationType = System.DirectoryServices.AuthenticationTypes.Sealing myDirectoryEntry.AuthenticationType = System.DirectoryServices.AuthenticationTypes.Secure Try
[Code]...
After that, I haven't been able to find a method to verify a user's log in information with their password and then pull back some information.
I'm writing an application that will add users to Active Directory. I'm trying to use this code to connect to the "Users" shared folder in AD
[URL]
However it adds the user in with the shared folders, instead of within the "Users" shared folder. Shouldn't CN=Users mean it will add it to the "Users" folder?
I need to query AD to work out what access a user has to my application.I have 7 AD groups (FTP1 to FTP 7), these groups can have other groups added so I'm using GetMembers(True) which is recursive.The below function works great but it's a little slow, is there any obvious changes I can make to speed it up?[code]
I'm writing code to connect to my Active Directory server using LDAP. I can connect usingLDAP://celtestdomdc1.celtestdom.localbut I can't connect usingLDAP://celtestdomdc1.celtestdom.local/CN=Users;DC=celtestd
In an application I'm working on I am using the Environment.UserName Property to get the logged on user's username. Is there a way to convert this to the logged on user's REAL first name and last name that is associated with it in Active Directory? I'd like to avoid having to connect or query Active Directory directly if possible (as this is a corporate domain). I also wanted to avoid hard-coding lookups into the app itself, as the users of the application will change over time. Would a "users" external file (Text, XML, csv) be better for this?
I have the need in my program to get the list of user logon names in a group. This is what I have so far but it only returns all the users...which I need cut down to those in a group, of which i have the name of.
Option Explicit On Imports System.DirectoryServices Imports System.DirectoryServices.ActiveDirectory
I've never scripted anything before,Using Listing 6 from [URL].. I have amended the script for my domain, and the response is correct for the Default Domain Policy. However we have a different password policy for an OU within the domain, so I amended the script as follows:
[Code]...
I hoped this would pick up the maxPwdAge which is set for this OU, but the response I get says the max password age is 0. This is not the case. The max password age is 2 (doing some testing), but it can't see this. Have I done something wrong, or can this script only see the Default Domain Policy, and not the individual OU policies?
1. I would like to know how the attributes of an object in LDAP can be fetched using vb.net
eg here i want to get the properties of user with id saechira.[URL]..
2. I have to perform the authentication of username and password using our LDAP server. I have tried to use the below code. When I try to execute this code it say "Logon Failure: Unknown user name or bad password". Is it because of any invalid parameters, can anyone Please let me know why the authentication fails.. The username password and the domain are all correct. why does this error occur.
Long story short I have a situation where some users have access to two domains that do not trust each other. They log into one domain and their user ID's are identical on the other domain. So when they change their password on the first domain they need to call into tech support to have it reset on the second domain. I'm writing a app that checks if they have access to the first domain but not the second and if this is found to be true it prompts them for the new password to update the second domain.
Here is where I am stuck. The following code works GREAT but I need it to be more flexible:
Code:
Friend Function ResetPassword(ByVal OldPassword As String, ByVal NewPassword As String, ByVal UserName As String) As String ' Resets a users domain password
[Code]....
The issue is the CN is different between domains (one is first name last, other is last name first) so I need to search by UserID which is the same between the two. So I tried searching by sAMAccountName but it says object not found. Also I need to be able to search the entire Super Corp OU. When I get rid of the extra OU's the search also fails
So I need to search LDAP for sAMAccountName anywhere in OU=Super Corp. How can I do this? Every combination I try seems to fail yet if I hard code it like the above example it works great. The idea is to replace CN=John Q. Public with sAMAccountName=" & username & " to pull jsut that user on the fly.
If it matters all clients are XP SP2 or higher, both domains are Server 2003 or higher. VB 2008 SP1. The error message when a different search is done is a "Object not found".
I'm designing a program to search through all users in Active Directory and get the lastLoginTimeStamp attribute. From there I'm having a report(.csv) genererated based on who hasn't logged in 30,60, 0r 90 days. I believe I'm having a problem in my loop somewhere. My code works when I LDAP an OU with users inside but when I try to get it to seach subcontainers I get several exceptions thrown at me. Here is a sample of my loop code:
'Initialize and open report file ReportFile = My.Computer.FileSystem.OpenTextFileWriter(My.Settings.ReportsPath & "LoginAuditReport.csv", False)
