I 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
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I would like to create a secure login page for a pre-defined set of users (so no creating username/passwords by the users themselves). I've looked up a few sites and they all seem to suggest using Microsoft's Membership or something. I am not very sure as to why that's used, but all you need to know is that I will be creating the login details. I just need to make the login secure, ie, no duplicate logins, no logins from different browsers and cookies and sessions and encryption and all that. Any one have the code/links to where I can get all this?
View 1 RepliesI think it should be something related with "Local Security Policy".
View 1 RepliesI 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 currently working with VB.net 2005. I am trying to create a login form and use a text file as a database to login. The part login form is fine but i can't connected to the text file. When i use my coding with a database such as access or mysql is work fine.
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How do I create a Login Verification routine (Login Form) in vb.net . i have an windows application with login form contain user name , password , ok button and cancel button .
as this one:
Imports System.Data.OleDb
Public Class LoginForm1
' OK button
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but i want to run my application from desktop and will get confirmation if the user name and password correct by checking them in MS Access Database in the server.
so the the application in the desktop and the tabel of user name and password in the server.
How do I create a Login Verification routine (Login Form) and make the password case sensitive?Please remember to mark the replies as answers if they help and unmark them if they provide no help.
View 3 RepliesI have one Database : ManageSell.mdb (Microsoft Access) with password is:P@ssW0rd..In database, i have table User with two column : Username and password. I create value: admin + admin..Then , i create form Login in vb.net 2005 with code below.[code]If user type three password trust , it will successfull, else note error
View 1 RepliesI have login form, and it works. but only if passwords are not MD5. I would like to ask how to improve my code, so my application can use MD5 instead of normal text password stored in my MYSQL database.
This is the code I;m using now.
Dim mMySQLConnectionString As String = E3MCEncrypter.Decrypt(My.Settings.MySetting)
Dim MyADOConnection As New MySqlConnection
MyADOConnection.ConnectionString = mMySQLConnectionString
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What is the most secure way to create an ASP.NET 3.5/4.0 login page connection to an SQL database.
View 2 RepliesI have making login system using with php. Now I want to hide the link by using strongest MD5 hash, but the one I have got is uncrackable. I want to decrypt them in the runtime, but I couldn't
Public Class Form1
Function MD5Hash(ByVal strToHash As String) As String
Dim md5Obj As New Security.Cryptography.MD5CryptoServiceProvider
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I have from login in VB.net 2005. I want to type username + password in order that login From_Menu
Imports System.data.OleDb
Imports System.Data.OleDb.OleDbConnection
Public Class frm_Login
Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
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I'm having a problem submitting:
<input type="submit" value="Secure Login">
How can I submit by value"secure login". Is it possible?
I have tried something like this:
WebBrowser1.Document.Forms.GetElementsByName("input").Item("Secure Login").InvokeMember("click")
And all the variations with it and no luck.
I am trying to create a script that can login to a secure (HTTPS) website using credentials I supply then use MS' bitsadmin tool to download a report from the website. Once I automate this, I can then automate some processes of handling that report. So I am taking this step by step and trying to focus on getting the autologin portion to work before taking any other steps. The website I am logging into is not your typical site, it requires 3 fields 1) Organization 2) User Name 3) Password. See attached image as a reference. Also I have attached a text file with the source code of the relevant portion of the website login page.
So I hunted around and built a script off of a couple others I found and I am very close. See below for my script. The main problem I think I am running into is the stupid security alert popup I get from IE. I have no idea how to use the "sendkey" function on this popup to send "y". If I did, I think the script would work. When I run the script IE opens up and the security alert popup appears. I can wait as long as I want, but the popup doesn't go anywhere and IE just seems to sit there. [Code]
Im using VB 2008 express but dw any code i get ill just use the tool 2008 has to put the code in 2008.Anyways what im trying to do is make a chat program for about 100-200.How can i get a server on my comp so i can update the list of usernames of passwords without updating the program? How can i get the program on there PC to check my server on my comp if there input is validate? How can i get several users into the chat?How can i get it to display there names when they join the chat and get it to disappear when they leave?
View 14 RepliesI have making login system using with php. Now I want to hide the link by using strongest MD5 hash, but the one I have got is uncrackable. I want to decrypt them in the runtime, but I couldn't.
Here's the
Public Class Form1
Function MD5Hash(ByVal strToHash As String) As String
Dim md5Obj As New Security.Cryptography.MD5CryptoServiceProvider
Dim bytes() As Byte = System.Text.Encoding.ASCII.GetBytes(strToHash)
bytes = md5Obj.ComputeHash(bytes)
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The GetMD5Hash's method is using for to decrypt the MD5 hash to turns into the actual strings and MD5Hash's method is using for encrypt the strings into md5... However, the connection strings can be sniff the packets sent out. How to decrypt the MD5 hash and how to blocked the connection strings in the packets sent out??
I'd like to be able to to login to a secure website directly from within my VB.Net 2005 app.
I can use the following to open the page in the user's default web browser
System.Diagnostics.Process.Start("http://www.xxx.com/login") When you visit this webpage you're prompted for a username and password (using the .htaccess/.htpasswd method).
I'd like to be able to bypass the login popup and go straight to the logged in form (I have username and password stored in my.settings
How can i avoid multiple log into the application at the same time from different locations? If one user is logged in and the other user uses the same ID and PW to log in then he/she will not able to log in.
View 8 RepliesI am trying to create a small form that will duplicate a users entry for them.On my form i have a text box and two CheckListBox controls and a button. The user should be able enter a value into the text box, and select multiple items from both CheckedListBoxes, when they click the submit button the details will be added to a DataGridView below.
This is an example,The user enters the value Audi A4 into the textbox.
The First Checked Lsit Box is called "Colour" and from the options the user checks 'Red' and 'Blue'.
The second Checked List Box is called "Number of Doors" and from the options the user checks '3' and '5'.
When the User clicks the submit button 4 rows will be added to the DataGridView with all the different combinations, as shown below:
Model Colour No# of Doors
Audi A4 Red 3
Audi A4 Red 5
Audi A4 Blue 3
Audi A4 Blue 5
I am currently using this to populate the DataGridView:
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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"
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Assist in developing a login form that get it parameters from the data base such as ussername and password using visualbasic 2005 or 2008
View 2 RepliesBefore i start i must say i have no coding experiance what so ever, this is just a small thing i am working on nothing major. Basically i am trying to make an app that uses my websites loggin. I am using a phpbb3 forum and i would like my members to use this app to login and get the access to files i have in my app.[code]...
View 4 RepliesI have been looking for a tutorial like this for quite some time. in VS (I am using 11 BETA ) you have the option to add a custom login form. when you create it, it's code will look something like this:
Public Class LoginForm1
' TODO: Insert code to perform custom authentication using the provided username and password
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i am trying to create a login form using visual basic 2008 and i cannot get the coding to work there is only one section that is wrong, I am getting an error code saying : "value of type login_form.projectdatabase.logindetailsrow cannot be converted to string"i no for a fact that everything in the database is set as a text and is a string here is the code i will highlight the areas the code is underlined
Private Sub btnLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLogin.Click
Dim Username As String
Dim Password As String
Dim LookupUsername As String
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I want to create a User login form in VB.Net in which if user inputs the password then that should store in a encrypted form in the database table.
View 6 Repliesif there are any VERY simple tutorials lol which i can have it so i can create a login form, have it log me in from a user which is stored in the database and then redirect me to another form.Im really new to VB but this is something i need to do ive been going through other tutorials but ic ant find a good one for that, they all seem to just not work?
View 1 Repliesis there a suitable way to create a login form that can search database for the username and password to check if user is general or adminstrator?so basically there's like 2 levels of access.how do i make it such a way that a different form show for both after user is authenticated?i created 2 forms for that purpose. not sure what kind of code to make it work.below are some differences btw admin and generic user...
Functionalities Admin:
-Add New Chemical to List: Details, Purchase Details, Attach link to SDS.
-Search by Chemical Name, Alt Names or Location. Refine Search by Classification
-Edit existing Chemical records.
-Create/Delete Accounts.
General User:
-Search by Chemical Name, Alt Names or Location. Refine Search by Classification.
-Update purchased & consumption records for all chemicals
how can i create login form with mysql database?
View 15 RepliesHow am i code with the new user login form which username and password can be updated and non duplicated?
View 2 RepliesI am new with VB. I got now the Visual Studio 2008. I newer used it before.I need the following:I need a login form, which is using an MS Access 2003 database, in which I stored usernames and passwords.
The DB name is users.mdb and is stored on the C drive. It contains just 1 table, the name of the table is UserList. In the table I have 3 colums, first is ID, second is Username, the third is Password. It contains
just 4 datas, in the username the first entry is John, the second is Mary, in the password column the passwords are john and mary.
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