Connection To LDAP Fails Unknown Username Or Bad Password?
Mar 23, 2011
I would really welcome some help with this issue. We have a php code that works and connects to the LDAP. When I try to connect using VB.NET 2010, it fails to bind with logon failure unknown username or bad password. Below is the connection information. When I talk to the folks who run the ldap server, they say I am binding sucessfully, below is the log file for the sucessful bind? If I continue and try to execute a search I don't get any results. The server is running openLDAP ver 2.3.39 on a linux server, server requires connection on port 636 for secure connection, or 389 for anonymous.
[Code]...
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Aug 5, 2009
I have 2 questions here.
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.
[Code]...
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Aug 13, 2009
Does anyone know how to store the connection string in a file rather than hard coding it in the application. For example i have declared this connection string in the form to connect to oracle database and it works. But i assume this is not the right way to go by if one is looking for more secured environment.
strcon = "Provider=MSDASQL;" & _
"Driver={Microsoft ODBC for Oracle}; " & _
"CONNECTSTRING=(DESCRIPTION=" & _
[code].....
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Jun 21, 2010
send a solution for this "update login SET password=@password,username=@username where username=@user"
while executing i got the error"syntax error in update statement "
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Apr 26, 2010
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?
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Jul 15, 2009
I am looking to create a simple password box that will ask the user for a username and pass, if the user is validated against the usernames and passwords in an .ini file the login box will close and launch a program also stated in the .ini file. I would also like to be able to launch different programs for different users.
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Mar 26, 2009
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".
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May 17, 2012
I need to authenticate a user against LDAP/AD (windows 2008 r2) so I can leverage the domains password rules etc... I found code that will allow me to validate a users ID and Password entered into a form (using System.DirectoryServices.DirectoryEntry) but my problem is if the user enters an invalid password more that AD is configured to allow, the account gets locked out. Is there anyway around this?
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Apr 21, 2011
I'm working on a web based "Forgot Password" to reset AD passwords, using LDAP. Well, I can unlock the user, but not change the password.
Here is my function :
Private Function ChangeLocalUserPassword(ByVal User As String, ByVal Pass As String) As Boolean
Dim pinger As New Net.NetworkInformation.Ping
Dim usr As DirectoryEntry
_de = GetDirectoryEntry()
If _de Is Nothing Then
[Code] .....
How I can get around hard coding the Admin user on the page? Would creating an IUSR with a few Admin privileges work?
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May 17, 2012
I am connecting to a data stream that pushes data continuously and when I tried to set up a network stream I just could not connect and kept getting the 'not found' error. I used the httpwebrequest with webrequest.keepalive = true and started to consume the data by reading into a buffer and then appending to a stringbuilder. Once the stringbuilder reaches max size I flush it to a text file. The problem is that I get disconnected from the data stream because I am not reading the data fast enough. I need to keep the connection open and read the data while ensuring data gets stored in text files. If I use method "CONNECT" it does not connect to the stream.
While (True)
webrequest = DirectCast(Net.WebRequest.Create(url), HttpWebRequest)
webrequest.Credentials = New System.Net.NetworkCredential(username, password)
webrequest.Method = "GET"
[code]....
should I increase the buffer size and if so what is the max? that would mean I can read more data at a time and keep up with incoming push. Disparate here.
ACtually also I noticed that it gets stuck on this line
numbytesread = responseStream.Read(bufferread, 0, BUFFER_SIZE)
and then eventually I get disconnected.
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May 17, 2012
I am connecting to a data stream that pushes data continuously and when I tried to set up a network stream I just could not connect and kept getting the 'not found' error. I used the httpwebrequest with webrequest.keepalive = true and started to consume the data by reading into a buffer and then appending to a stringbuilder. Once the stringbuilder reaches max size I flush it to a text file. The problem is that I get disconnected from the data stream because I am not reading the data fast enough. I need to keep the connection open and read the data while ensuring data gets stored in text files.If I use method "CONNECT" it does not connect to the stream.[code]
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Feb 8, 2012
I am using VB.NET 2008.
On this Windows 7 Professional SP1 machine, when I run the following code in the program
FileCopy(sServer & "loglog.txt", Application.StartupPath & "log.txt")
I got the error "Logon failure: unknown user name or bad password."
sServer is 1 of our server machine.
The Windows 7 machine already logged in to the sServer as administrator, and it also login to the Windows 7 machine as administrator. I run the VB program as Administrator (right click - Run as Administrator).
In the Windows 7 machine I can go to Windows explorer and copy the file manually from the sServer machine to the Application.StartupPath folder.
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Apr 25, 2012
When my application starts, one of the first thing it does is load a list box with data from an Excel file stored on our server.To prevent an issue I had with two or moreengineers trying to load the data from the same file at the same time, I added code that copied the Excel file to a temporary file (which is,hen, deleted when the data load is done).This has been working fine up until last week. Last week our company moved to a new building.The move included servers and all. Suddenly I'm getting inundatedwith complaints from engineers about my application.It seems that they started getting the following error
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Dec 21, 2009
When opening an SQLite connection, I get the following error: Here is my complete code:
[Code]...
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Mar 17, 2010
FIRST START WITH LOGIN FORM
Public Class LoginForm1
' TODO: Insert code to perform custom authentication using the provided username and password
' (See http://go.microsoft.com/fwlink/?LinkId=35339).
[CODE]...
HOW SHOULD I ASSIGN USERNAME AND PASSWORD
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Sep 24, 2011
While a web page -which needs login- is opened in my browser, if I close browser and re-open, I have to write username password again. But, sometimes when I close browser and re-open for the same page, it isn't needed username and password again? Is it about Session, Cookie? If yes, why are there different conditions?
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Nov 24, 2010
1. i need to connect to a active Directory through different credentials. I want to have two textboxes like Username and Password. The User should provide these two information + the domainname and i connect then to the ad
2. How to check if the connection was successfull?
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Mar 8, 2012
I'm making a program that requires FTP access. I need to encrypt the password/username so no one will be able to decompile it and gain access to my FTP account.
how to encrypt strings? I've gone through google, but I'm not looking for a 5 page essay.
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Nov 5, 2010
i am trying to do a for loop to give the user 3 trys to get the login username and password right. the username is User and the Password is VB. the code i got so far is a if function Private Sub btnLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLogin.Click
[Code]...
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May 20, 2009
How do i set username and password, and how do i make a function that makes it aviable to change the password and the username from the program??
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Mar 17, 2010
i have a problem when adding username in my registration form..registering same username is allowed in my program..i dont want to allowed this. How can i make it using SQL..if the username exist dialog box will appear that the username exist
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Aug 19, 2009
the below code is the login form. If type wrong username and password, MsgBog will pop up. So, my question is how to reset the password and username after the wrong username and password. I try to put Me.ResetText() but still can nt function because the old usename and password still remain at there.
[Code].....
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Dec 15, 2011
I have been coding a Reset Login Details form, the user needs to enter the new Username, the new Password and the Current Password.Here is my code below - something in the form is not working as i am getting an error when i fill in the form about the INSERT INTO statement.
Imports System.Data.OleDb
Public Class frmChangeLoginDetails
Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click
[code].....
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Apr 22, 2012
I'm currently working on a library system. i have a registration table. there are my fields in that table as well as username and password. then i have a login form. i want to use the same username and password as in the Registration table for the user to login.
in my login form there are 2 txtboxes namely txtUsername.text and txtPassword.text
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Feb 23, 2009
I was wondering if there is a way that i can check my companies domain to authenticate a user name and password for an application in am working?
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Aug 15, 2011
when you log in a username and a password a msgbox will show that you are log in, and then when you enter the same username and password, the program will identify that the username and password is log out. no button will be use in here.
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Jun 12, 2011
I have a form just like the login form in VB.Net. The usernames are prepopulated on a combobox with datas from the SQL DB backend, and the text box for the password entry is empty. My code is working but what I need help is, for the code to validate the username and password entered against that stored on the SQL DB backend. Like when the user selectes a wrong username but the password entered is correct, there shld be a messagebox like "The username selected is wrong", or if the username is correct and the password entered is wrong then the msg is "The password entered is not correct, please type you password using the right case".
Try
conn.Open()
Dim SelectStm As String = "SELECT * FROM tblStaff WHERE UserName = @UserName AND Password = @Password"
Dim objCmd As SqlCommand = New SqlCommand(SelectStm, conn)
[code]....
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Mar 8, 2012
I have successfully saved account details to a .dat file (username, password, account type).the issue is however, that any username works with any password, for example, if the file were "user1 password1 user2 password2".I would be able to log in using "user1" as the username and "password2" as the password, i think i'm missing something?
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Sep 12, 2009
I had one user in my db and when using this code it validates my username and password, but when I added a second user, it does not validate the second user, only the first one. I removed the first user and added it to my db after the new user, but it did the same. What can I do to make sure it actually runs through rows in the db and compare the information in the text box with the information in the database?
Dim
sqlStatments As New SqlClient.SqlCommand( _
"SELECT * FROM Users", UCSMISDB)
[Code].....
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Mar 12, 2011
Question I: How do I make a username and password save to a .txt and if it the txt exits, then it will fill the information in the login box again?
Question II:Can I encrypt it easily and decrypt it easily or will that require some advanced coding?
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