Getting All Users And Changing Their Passwords
May 13, 2011
I am using VB.NET 2010. I have a Windows 2008 Web Server, where about 80 user accounts are activated. It is NO Active Directory Environment!!! This is a server, where Windows SharePoint Services are hosted. So, once a year, I have to give all users a new password. (I have to give it, because of some security thinkings of the owner of this Page). So, changing the password for each person is a very long activity. How can I do this by a VB.NET Program? - When I am logged on as an Administrator to this server?
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Sep 24, 2011
i'm asking a lot of question here, because i have finally found a real helpful place to ask,and i have a lot of questions, anyways i made a login system in which i used an access database, everything is working fine, I Added a TableAdapter and made a query with users and there passwords, this is the code i used:
Private Sub OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK.Click
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Oct 13, 2009
I am making a login form for my A2 computing work and have got that to work but i did do some of the work and now i want to know how i can add extra users and passwords using simply textbox on another windows form [Code]
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Feb 26, 2011
I'm making a project that judges contestants. I have 3 labels at the bottom of my form that will keep a running total of the top 3 contestants, and change as the contestants score higher or lower. I'm not sure if I should use a loop or if statement, or where to begin at all.[code]
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Apr 26, 2009
Well ive created a web browser programme and created a user login form for the users to login and that works fine. Now i want to create a feature while the person is logged in, he can change users, so loging as another user whilst already logged in, for example, Admin user might be logged in and now he wants to change user to a normal user without turning the programme on and off to do so.
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Aug 8, 2011
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
If My.Settings.registered = True Then
Form3.Show()
[code]....
This is my code for a trial application. The code is pretty basic but what i couldn't figure out was how i would be able to prevent users from changing the date to extend the trial ("error" i would be getting).
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Jul 25, 2011
PROJECT TYPE: Windows Forms Application
LANGUAGE: Visual Basic
.NET VERSION: 3.5
IDE: Visual Studio 2008
OPTION STRICT: on
OPTION EXPLICIT: ON
I need to populated a ComboBox and a CheckedListBox with a list of the Windows Accounts on the host computer. I also need to the user to be able to apply settings to the users individually. Thirdly, I need to find a way to add a startup registry key in the CURRENT_USER for a different user than the "Current User" (For example: User1 is an Administrator. User2 is a Limited Account [can't modify registry]. User1 needs to add Registry key to User2's "CURRENT_USER". This is a parental control application so the Admin accounts need to be able to access the registry from all users without affecting all users at once. I do not have any code to paste because I still have not the foggiest idea of where to start. I think it probably has something to do with an array (I have no experience with arrays whatsoever) but I am stumped from there. I'm a new, self-taught programmer so I speak idiot at times,
Summary of Questions
1) How do I retrieve a list of Windows Users?
2) How do I populate the objects above with such a list?
3) How do I interact with the items on that list (specific user accounts)?
4) How do I modify another user's CURRENT_USER Registry key?
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Feb 9, 2010
I have an asp.net web app that uses forms-based authentication, a SqlMembershipProvider (using an encrypted password format), and a SqlRoleProvider. I need to know if it's possible to administer the users (create new users, assign them to roles, etc.) from a windows application - the powers that be don't want any administrative functionality in the web app itself.Here is the membership provider definition from web.config:
<membership defaultProvider="MyProvider">
<providers>
<add name="MyProvider"
[code].....
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Dec 29, 2010
I've got a code using SQLClient that loops though all users in a Users table inside each loop i want to preform another search in the UserOrders table, thus doing a count of all orders.
I get this error
HTML
There is already an open DataReader associated with this Command which must be closed first.
Here is my code
vb.net UserLists.Items.Clear()
Dim connection As New SqlClient.SqlConnection(My.Settings.ConnectString)
Dim command As New SqlClient.SqlCommand("SELECT * FROM Users ORDER BY PersonName",
[CODE]...
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Apr 3, 2012
1.I�d like to publish a free vb.net desktop application for the users to download and use meanwhile I�d like to collect usage information ex: user ip address, user�s registration information, used features, time spent� if the user allows the report to be sent back.
2.Also , in order for the user to be able to use the application, he�ll have to register it then, everytime, before the application loads, it gets verified online that it was registered, maybe validate the registration information or a valid user name and password, no critical personal information. The target of this step is for the application to be used exclusively by the registered user and maybe on his computer only.
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Apr 4, 2012
1. I�d like to publish a free vb.net desktop application for the users to download and use meanwhile I�d like to collect usage information ex: user ip address, user�s registration information, used features, time spent� if the user allows the report to be sent back. 2. Also , in order for the user to be able to use the application, he�ll have to register it then, everytime, before the application loads, it gets verified online that it was registered, maybe validate the registration information or a valid user name and password, no critical personal information. The target of this step is for the application to be used exclusively by the registered user and maybe on his computer only. Any alternative way to achive the target is just fine.
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Jun 10, 2008
I cannot figure out how to get this call to work.I have searched EVERYWHERE.MSDN is no help at all and the only thing I can find is this vb6 code that doesn't work in .net.I tried to convert it over but I've had no luck.Specifically I'm trying to get the path of the "All Users" Desktop and the "All Users" Start Menu.It would rock if anyone could help me out with this one.
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Oct 20, 2009
I know its a very basic problem but what is the best way to store passwords and usernames in visual basic 2008? I need to be able to add them whist in runtime and I also need to be able to obviosly get the program to check wether inputted username and passwords are correct.I am VERY new to programming so please explain your answeres in dummy language
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Jun 12, 2012
I'm trying to write a program right now for my computer science class for a program where you insert text into a text box, (the text being a password), and then click a submit button. The goal of the assignment is to have a program that looks at the user given password and see if it matches the const password (or one of the three const passwords in my case). If it doesn't, it is supposed to loop back so you can re-input the password. Also, If you enter the correct password, the loop ends and you are to get a msgbox (or, in my case three different ones), and then the application closes. We are to write the code so that if the password is wrong "x" (insert 3 as the number I have chosen), a MsgBox will pop up with a message saying
something along the lines of "you have gotten the password wrong to many times.", and then the application is supposed to close. I don't think I could rant on much more, I've done a good (or in my eyes terrible) job of summarizing the assignment.
[Code]...
My problem (aside from, I don't know, a problem with my code itself) is that when It reaches the loop, it goes through all the code again, but I'm unable to change the user given password, and so it just pops up the three failed password entry MsgBoxes (the code for which is temporarily removed), then the failed to many times MsgBox, OR one of the successful message boxes. What I'm wondering is if anyone can help me fix my code so that it functions as desired.
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May 26, 2012
The following webpage talks about using impersonation in code (ASP.NET)[url]... I am thinking about creating a class for the code, then the application can call impersonateValidUser and undoimpersonation.
I am concerned about putting usernames and passwords in my code as surely anyone will be able to see them using a tool like ILDASM. What is the best way to hide these passwords?
The article has a section titled: Impersonate the IIS Authenticated Account or User. I thought about creating an impersonated user in the Web.Config, but this would mean that the entire application is run as the inpersonated user. I only want a very small part of the application to run as the impersonated user - when it is necesary to access and update active directory.
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Apr 5, 2009
How to do this: I have a webbrowser on a normal form with a listbox undernieth it. I would like the program to get the passwords from IE or FIREFOX so then I could import them into my webbrowser.
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Jun 26, 2010
I recently made a small app for a friend and then made it a public app, in doing so I forgot that it connects to my MS SQL DB and checks for values. Someone used Red Gate .Net Reflector to get my password and destroy it all. I've contacted their ISP and they are looking into it, apparently this person has a static ip with them.So this is a lesson learned at a heavy price for me. How can I prevent this from happening again? How can I get away from the unsafe connection string they were able to use?
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Mar 16, 2009
Yesterday night a friend did ask me what encrypting i normally use for my login passwords on the programs i make.Wel my answer = NO Encryption cause most of programs i write with a login on it as protection is only for local use.But still lately iam starting to get more intrested to make programs that are using external databases like MySql.So my Question is how to put sh1 encryption on a password.i need this in 2 ways 1. how to use it when i register a password to a database.2. how to use it when i read the password out of the database.( i dont need to know how to make a connection to mysql or etc. just the info to encrypt.)
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Aug 3, 2011
Is there any possibility of clearing saved passwords using vb.net code from the browser (could be IE, Chrome or Mozzila).
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Apr 21, 2011
Can someone tell me how Active Directory stores it's passwords for users? Is it like this answer : storing passwords in SQL Server Is it a hash and a salt or multiple hashes?
EDIT I ask because I want to mimic the way they store them for a custom authorization application I want to build. Or if someone can offer a existing framework or class that handles user authorization for a web application. If I can use asp.net membership for multiple applications using web service that would be even better.
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Mar 7, 2012
I have a scenario that has been troubling me for years. If you have to connect to a database or other service (like a web service) using a username and password, where would be the safest place to store this information if you are connecting through a .NET assembly? I understand that you would have to encrypt the password, but then you run into a kind of chicken-egg problem -- fine -- you can encrypt it, but then where do you put the key?In .NET, you can't hardcode the password because you can decompile .NET code.
I looked at using assembly based rights with Isolated Storage, but MS recommends against storing unencrypted secret items there because priveledged users can gain access, so again, we are moving the problem from point A to point B. So for examplem, a domain admin with no need to know about the information in a database would be able to get access because of the ability to be an admin on any workstation on the domain.You can encrypt App.Config and Web.Config, but I believe priveledges users can access the keys. I think you run into the same problem with DPAPI.
I had considered storing the passwords, encrypted in a remoted database and getting them through OS authentication, but our department prohibits the storage of passwords on database servers. I am pretty sure I am stuck and wanted confirmation.
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Feb 7, 2010
i'm oding a project which involves using a log in form, from which the username and passwords are compared to. However, at the moment, my code works, but not case sensitively!
Private Sub btnLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLogin.Click
Dim sql = "SELECT Username,Password FROM login WHERE Username = '" &
[Code].....
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Aug 3, 2011
Clearing saved passwords in browser
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Dec 11, 2009
I am building a small office application that requires users to log in dont need encryption or other sophisticated aproaches. all i need is an array of passwords that users can log in.
So If passtext.text= "test" or "test1" or test2" then
else
msgbox("Fix password")
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Jun 29, 2009
I looked everywhere for some source codes to get all saved passwords .. so can someone post here source code or give me some tut to read it ?
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Sep 27, 2009
I am trying to get use to this....I need to know how to type in a database for my usernames and passwords??? I am using visual basic 2008, which I think is visual.net? anyway...heres my code:
Code:
Public Class login
Private Sub login_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Hello.Hide()
[code]....
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Mar 29, 2011
What's the simplest way to upgrade a VB.NET site to using encrypted passwords? Are there easy to use encryption algorithms built in to System.UI?My site is using plain text password storage, and it will soon be going to a public server at godaddy from a private one on the local network. I'm going to have to start adding in encryption algorithms to all the password parsing functions, and it would be nice if I could just set a SALT key in the web.config file and Encrypt(password) or something like that.
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Oct 26, 2011
I need to write a program allowing the user to enter up to five passwords at one time. I have the textboxes set the way I need. When the user presses the button, the code should check every password they ve entered, and flag any passwords that are invalid. A valid password includes the following:
At least 6 and not more than 15 characters
At least one uppercase alpha character
At least one lowercase alpha character
At least one numeric character
I'm a little confused about how to check each character of the entered passwords for these conditions.Because it must include alpha characters, I believe I have to do something with ASC and CHAR variables. This is my first post and I need to have this done within a few hours, haha. Help would be awesome.
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Feb 20, 2012
I am using vb.net (visual studio 2010) and have made a form application that uses a login screen. All that works but I am having trouble any firm way to encrypt the passwords in the database. The encryption doesn't have to be very high standard as its just for a college project. Whats the best way to encrypt the password into the database? Or just encrypt the password string, I can then sort out the database end myself.
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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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