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]
View 4 RepliesI 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?
View 15 Repliesbasically i want to create a login to my program which uses the same username and password as windows login.I already know how to retrieve username and auto place it in the username box using
TextBox1.Text = Environment.UserName.ToString
i wondered is there an easy way to only allow access if the password matches up to their logon? i dont know about setting up databases but i dont think this option would work because each member of staff can personally choose their password.
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
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.)
View 1 RepliesI am trying to create a secure login form which can avoid double users log in with same user id from different locations. how can I create a secure login form. I have create a basic login form as below.
Dim conn As SqlConnection
conn = New SqlConnection(Source)
Try
[Code]....
I try to make one application that will first show login form (with textbox for username and password) and when I press login client application send request to server side application that make SQL query (local) and return some values and that values will be listed in main form. I try something with TCP chat source codes but I don't manage what I want.
View 3 RepliesI'm developing a program which would be the only program user will use. What i mean by this is once the windows is up, my program will run and blocks users from accessing any other program installed or comes with Windows such as internet explorer, email client, games, etc.. unless user puts password for getting out of my program.
BTW, the OS will be Windows XP.What i want to accomplish by having this is like below:
1. No one would be able to use internet (= no virus)
2. No one would be able to change system time (= no record corruption)
3. No one would be able to install any program (= less system maintenance)
My program is Kind of interactive Kiosk program only certain user can access windows and other programs.Also when it comes to system maintenance, I will remotely access the computer using pcAnywhere or teamviewer like remote access tool.So after exiting the program, i should be able to use entire system w/o any restriction.
I want to create a login system that reads the usernames and passwords for a list of arrays:[code]I have managed to code the program so it accepts the correct username and password and sends a error message when they don't match. The problem I'm having is when the user enters a username that isn't on my Username list. The program always crashes when I enter say "admin1000".[code]
View 3 RepliesCurrently I'm working on a program that will run out of my startup folder when I logon to windows so instead of typing in a password my program will run fullscreen blocking any access to Windows until the user presses the buttons on the form in the correct order. In order for this program to actually be purposeful i need to block keystrokes such as "Alt-F4" and "Cntrl-Alt-Delete". I've looked around on google searches and I usually find a similar solution but when
Imports System.Diagnostics
Imports System.Runtime.InteropServices
Public Class Form1
[code].....
I would like to know whether there is anyway in which i could create a .dll to replace the original "authui.dll" situated in the C:\Windows\System32 folder.
Is there any possible way in which i could design the login screen on Visual Basic 2010 and then convert the exe into a .dll which will work as an alternate login screen replacing the original .dll file
I have a Visual Basic .Net form (launches after the splash screen tests database connectivity) and it is not focusing above other existing windows on launch. How do I get it to focus above all existing windows and Windows Explorer windows?
View 1 RepliesI 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].....
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.
What I'm trying to do is have a login type windows form to take a user name and password then compare these with data in the db then open an admin type form. I've been trying to get this to work for a few days now with no luck, about 90% of the code below is a peice together from various forums trying to get it to work. I no longer get an error 26 connection cant be made or what may have you, but now I get "Login failed for user ''.", not quite should what this means or how to go about it.
Private Sub LoginB_Click(sender As System.Object, e As System.EventArgs) Handles LoginB.Click
Try
Dim con As New SqlConnection("Data Source=.SQLEXPRESS;Database=C: cdb cdb.sdf;")
Dim cmd As New SqlCommand("SELECT Username, Password FROM(Users) WHERE (Username = '" & UserTXT.Text & "') AND (Password = '" & PassTXT.Text & "')", con)
[Code] .....
DB has no user/pass needed to open... I think, I didn't set one and the whole app doesn't use one and loads binded data within another form without any problem whatsoever?
how to login a site from a windows form application
View 5 RepliesI have a print driver Windows app that uses a web service to connect to an authenticate its credentials. But the problem is, I don't want a user to login every time they want to print. Basically I want the login part of the app to only pop up if the printing functionality hasn't been used in 20 minutes.
tell me what would be the best way to go about this? I'm unfamiliar with Timer functions. This app isn't always on. It's on briefly then closed. So I need a solution where the timer is set somehow on the computer.And I don't want to write data to a text file when it can just be edited..
I want to make login form. It contain two Textboxs and one button (Login).
If textbox is empty then button look like Disable
If I type text in textboxs (Textbox1) and (textbox 2) both then button Enable. for logining...
i have a login form that works ok. but i need to insert a textbox in it that has to be filled with the real username based on combobox selection. following the code for the login window. That code works OK.
Dim conn_login As SqlClient.SqlConnection
conn_login = New SqlClient.SqlConnection()
conn_login.ConnectionString = "Data Source=SQL;Initial Catalog=orcamento;Persist
[Codee].....
I am having trouble in creating a login form in my windows application.If i create a login form with its database local to the system ,it works fine .But my requirement is that the database is placed on a remote server so that the login is secured.When the user tries to use the application he first needs to login.When he puts the username and password in the login form it should send the data to a remote server for authentication.
View 12 RepliesFirst off, I am a total VB noob. I want to create a program so that I can store usernames and passwords. I want to be able to search by username and pull up their password. What VB program do I need to write this? Can I just use the VB in excel?
View 9 RepliesI am creating a login form for an application, everything is ok but I have been asked to make the user name and password text boxes case sensitive, by which I mean if a user entered the following
User Name: vbwizzard
Password: youwish
a error message would be shown If the user entered
User Name: VbWizzard
Password: YouWish
The information would match what is in the database and the user would be granted access.I just need help with making the text boxes case sensitive, the rest I am ok with.
Any way to import passwords into all program downloads. For example, if I wish to give a certain user a password I can somehow insert it into a program, and it updates all the programs which have been downloaded. It just saves editing the code, then releasing another update to include new passwords for people to use. Maybe if there's someway to auto update when an update is available, it would work. Here is the coding for a password. I just need to find a way with will mass update everybody's program when I want to add a new password for another person.
Private Sub ButtonX2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Verify.Click
My.Settings.Password = TextBoxX3.Text
My.Settings.Save()
Incorrect.Visible = True
[Code] .....
How am i code with the new user login form which username and password can be updated and non duplicated?
View 2 RepliesI'm a beginner when it comes to VB. th this. I have a Windows Application that I'm making for a friend. It's written in VB and connects to a SQL Server database. My problem is that when a user enters their username and password, then clicks on the OK button (all in a Login form that Visual Studio has a template for), the connection string is verified and connects, but for some reason
View 15 RepliesIf Users LogIn, I want to cath the time, in what time it start to login...
View 2 RepliesHow do I Close a Form and then open a new one straight away? Im trying to make a Login for a Program, but I want the Login Box to open first, then disappear when the credentials are correct and a new Form to load.
View 3 RepliesThis will be my first post on this site, so I thought I would make it a doozy. I have an web application on our site at work that allows users to login to the system, and submit filings for dockets that our state agency governs. Without getting to involve with what that means, they basically upload mostly .pdf files, but there are others that are acceptable to upload as well. The current system that is being used, uses a simple FileUpload and saving it to a folder on the d: drive of the webserver. I ran into a problem that with anyone outside the building/network, the upload is extremely slow and seems to be limited files no larger than about 1.4MB. There have been a few cases where larger file have made it through, but those ar few and far between. I've tried a couple different 3rd party components, but seem to run into the same limits. So, I install the FTP server on the box with the IIS and am trying to go the FTP route using ftpwebrequest.
Below is what I have put together so far:
Imports System.Net
Imports System.IO
Partial Class _Default
[CODE]...
This seems to work as it is at the moment, but I know it has a long way to go for catch exeptions, speeding it up...
1.) The first problem I have run into is if you try to upload to large a file, you get Out of memory error. I'm needing to change the buffer so that it is buffering chunks instead of the entire file. I've googled over and over again and seem to find several good options in C#, but can't seem to convert them to VB. So, could some one give me some idea how to take what I have and change the buffering to use smaller chunks.
2.) I need to catch an empty UploadFile field.
3.) I will eventually be changing this so that it handle multiple file uploads like my current system uses. (Did I mention that I'm new to the ASP.NET and have been programming in .ASP)
4.) As you will notice from my list of acceptable file types, I might have a problem with some needing to be upload as Binary and some not. So I'm going to have to come up with a way to test and change the Requested.UseBinary = False as needed.
I'm sure that I'll find other items as I progress or the big bosses will find other things that they want to add, but for now.... I know that given enough time, I will get all of these items worked out.
By the way, we have a network adminstrator that leave a lot to be desired and most IIS and now FTP I'm having to learn, implement and configure. I'm wondering if there is anything else that could be causing these limits in file size. Since I've tried 4 completely different forms of uploads and they all seem to run into the same limits, I thought there might be something in a router, firewall, server configuration.... that I might need to look into as well.
I am new to .NET and I have created a login page, with a user Id and password. In my webconfig, I put the following code in to deny users who are not authenticated.
<authentication mode="Forms">
<forms loginUrl="Login.aspx" timeout="10" protection="All" />
</authentication>
<authorization>
<deny users="?"></deny>
</authorization>
What I am trying to accomplish is that when a user enters the correct information, I would like to store information small information about the user in a cookie, say for example if there an admin, manager, user, etc...Here is the code that occurs when the user click the submit button. The problem is that the page doesn't redirect to the page after user enter correct information.
If txtPassword.Text.ToLower = "test" Then
'Create a cookie
Dim cookie As New HttpCookie("UserInfo")
'Cookie variables
cookie("User") = txtUser.Text
[Code] .....
how do I prevent my users for more than one simultaneous login per account. I am using Vb.Net SQL.
View 2 Replies