If/then Based User And Password Authentication?
Apr 17, 2009
I am writing a program that accepts a user name and password (the password must show up as *s). The user gets three tries to enter the correct information before the program is closed. So far I have the password showing up as the password in clear text the first time and in *s the next two times. The authentication also fails even when I use the correct user name and password which are password and user for now.
Public Class frmPassword
Private Sub btnOK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnOK.Click
Static intCounter As Integer = 0
intCounter = intCounter + 1
[code].....
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Aug 3, 2011
get user's password with windows authentication
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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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Feb 26, 2010
I am currently developing an application in VB.net that opens up a web document via Web Browser Control, parses the HTML, and sends back the data I need. This is not a problem.However, one of the sites requires basic authorization to access. I know the following code will workThe dialog box will come up with in the User Name box, but the window focus will be on the password box.
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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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Oct 19, 2011
I have managed to successfully connect remotely to the MySQL database for my Joomla! 1.5 website using MySqlConnector in Visual Basic .NET 2010. Now I am trying to authenticate a user's password from values submitted in a simple form to those retrieved from a MySQL query.
I found a useful thread on forums.joomla.org titled "Joomla password MD5 & VB.NET MD5", but the code snippets there produce the incorrect hash.Here is another useful Joomla Forums thread as to how passwords are encrypted (using MD5 hash and "salt") in the Joomla DB.
[Code]...
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Nov 14, 2011
I can access the current Windows user, but I want to give an admin the ability to enter an alternate username and password for a different Windows Active Directory Account without having to logoff and log back in. Once the account is authenticated, I need to use it in a connection string to sql server. I know I could do this for a SQL Server login, but this is Windows Authentication only. It was installed with ClickOnce. Is there an .exe file on the user's machine?
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Jun 24, 2010
If I wanted to make sure that AUTHENTICATED users were denied access to Enroll.aspx and UNAUTHENTICATED users had access how should my "allow/deny users" tags be set in the web.config?[code]......
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Jul 30, 2011
Where is a good VB.NET tutorial where I can have a username box and a password box and it checks in the database if it's there and if it is then another form will show?
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Aug 6, 2009
I'm trying to make an authentication before my visual basic 2008 project, a login window. You have to login using your vBulletin username & password. The username and password from my community, which is a vBulletin forum. So, I'd like a form that ask you to login using your username and password from my vBulletin forum, so you'd have to register before...
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Nov 3, 2010
In this project, I will develop a dotnet based application which can match and identify the fingerprints and implement the authentication process across ATM usage
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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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Apr 10, 2010
I have a button on my Form called EditingButton that will have a DialogBox appear asking for a password. How can I have "*" show instead of the Password it-self when the user enters the password?[URL]...
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Feb 10, 2009
I have an app that, depending on what day it is, exports a few reports from accsess, then emails them using gmail.the app works from my machine - xp pro, test machine - Vista Ultimate, but neither of the machines that it is supposed to be working on remotely. All user names passwords, authentication method etc are correct as i don't believe they would work on a local or virtual machine otherwise.Remote machines are running Vista, they use the Gmail account that is programed in, the firewalls are off. error returned is simply "Failure sending mail"machine is of course connected to the internet and normally able to send and receive mail. code used (or at least a big chunk of ) below
Emaildays:
'now that we have the access reports exported, lets send them
Dim Emails As New System.Net.Mail.MailMessage(My.Settings.frominfo,
[code].....
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May 15, 2012
I am trying to set up a new internal system for my client currently, they insisted on integrating the login with AD, which makes sense, and i have managed that with no problem. However what i also want to do, after authentication, is to store some user details / attributes as session variables. I have the following code to aithenticate the user:
'this function authenticates against AD - very simple and works nicely.
Function AuthenticateUser(path As String, user As String, pass As String) As Boolean
Dim de As New DirectoryEntry(path, user, pass, AuthenticationTypes.Secure)
[code]....
which works nicely, and once the function returns me a True, i set Session("LoggedIn") as True.what i need to do is (hopefully within the above function) save the user's name, and 2 other custom atributes from within the user's AD profile.How would i access those (hypothetically)
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Dec 25, 2011
how to save data (for example some text that user type [as password etc]) and save that password on same location where is application. After saving I want to have also Load option so we can load saved data.
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Apr 12, 2010
I want to authenticate each user every time. in vb 6.0 i used this
Private Sub cmdIngresar_Click()
Dim rs As New ADODB.Recordset
Dim strConsulta As String
[CODE]...
So, my question is how could i modify it for vb2005, because vb2005 don't use recordsets?
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Jan 6, 2012
Can i use the timer when the user tries to log-in and the user entered a wrong password 3 times.i will give the user 5 mins to log-in again with the correct password and if the user enters the wrong pass. 3 times again i will give another 10mins also this is what i want when the user close the program the timer is also their and running that it will give the user the remaining tym on how much tym left 4 him to log-in again.Can i do this in vb.net??i dont know how 2 do this i dont have a clue if it is possible can someone give me a code??
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Aug 16, 2011
I am trying to implement login page using Form Authentication in ASP.net using vb code.I follow the steps in How To Implement Forms-Based Authentication in Your ASP.NET Application by Using Visual Basic .NET. I created a function in login page :
Private Function ValidateUser(ByVal strUsername As String, ByVal strPassword As String) As Boolean
and call it in btnLogIn_Click
Protected Sub btnLogIn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLogIn.Click[code].....
Things works fine and i can get the username display in label.However,I need to get more user data like UserName, Fullname and RoleCode. Also, i would to display the user's fullname to instead of usename in welcome message. I was told this can be done using FormsAuthenticationTicket method to store addictional user data in the "my user data" section. Do i need to create a user data class to store the user data and then use it in the FormAuthenticationTicket? If yes, how should i do it?
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Mar 28, 2011
as topic, i need to send an e-mail without outgoing authentication becouse server hasn't outgoing authentication.. how i can do this??
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Jan 3, 2010
i wanna know how to make a registration forum. so every user can have thier own user name and password .
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Dec 14, 2011
I'm making a login form in VB.NET, and I have a table in mysql called user. What I want to do is before a user can login the Administrator column of the user table must be TRUE and the DELETED column must be FALSE. I've tried everything I know but all non admin users are still able to login... Heres how the user table looks like:
[Code]...
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Oct 19, 2010
I am currently creating a tool that can manage local user accounts on Windows-PCs. I am using the functions described on
this MSDN page ; and after some struggling, I got most of them to work.
Unluckily, I haven't found a way to set the option "User must change password at next logon" while creating a new user account. I use the
NetUserAdd -Function to create the new user. I set the level to 1 and supply a
USER_INFO_1 -Structure . This structure accepts flags, and the flag UF_PASSWORD_EXPIRED seems to be exactly what I want - but when I set it, the user can log on without changing the password first...
I'm developing on Windows 7 Ultimate 64-Bit using Visual Studio 2010 Express.
Here's my code:
#Region "Constants"
Public Const UF_PASSWORD_EXPIRED As Integer = &H800000
Public Const USER_PRIV_USER As Integer = 1
[Code].....
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Apr 1, 2009
I'm writing an application which has user authentication system, basically, when the user open the software, he has to enter his/hers username and password which are retrieved form a access data base, and if the user is set as admin then it enable some features, I couldn't figure out how to read the column lets say, IsAdmin table, which will store an value of 1 or 0 for example. I need a concept of how build a login system with levels or whatever you guys call it...
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May 27, 2011
I'm trying to create a login prompt. I have a xml file like this[code]...
How to find if a UserName which is entered in a textbox exists in the file and find if the password is entered correctly? If there's a better way than using xml, can you provide any info?
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Aug 18, 2010
I have listBox control of user objects where each object has userName and Password.What I want to do is when a user enters userName and Password a method goes through the listBox checks for whether userName exists or not and if userName exists then matches the password.What I have in my mind is that to use for each loop but I think it would become complex so is there any better way?
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Feb 16, 2009
where can i find the user name and the password of msn in my pc
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Mar 27, 2012
I need to be able to validate the windows password of the account that is currently logged in. I've managed to do this when the unit has a password. But if it does not have a password, passing an empty string does not work. It fails each time.I've been looking around, but haven't been able to find much on this. Does anyone know how to determine if the user password is empty?[code]
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Jun 5, 2011
I'm working on a vb.net application connecting to mysql db which will have alot of users using it.
How should I deal with the user registration?I mean, I used to create a table with a username and password fields to store the users data in it, but in this case all the users will connect to the database with the same username and password of the server (in the connection string)
I need a pointer on how to do this thing right.What would happen if many connections established from many computers with the same user and password in the connection string?
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Oct 15, 2011
Is there a way to change the ftp password for a certain user programmatically?
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