.net - Application Online Security?
Jan 29, 2011
I am developing and application in vb.net winxp+ (windows xp upwards). The application has to receive backup data from clients software located at different pc over the Internet. but am concerned about security of this application on the Internet. what would be the best way to implement security in vb.net 2008 to make sure that the data is not sniffed or interfere with?
am thinking of encrypting the data before sending, saving it that way until it need to be viewed before decrypting. what type of encryption would you suggest? Is there any other way you would suggest this data be sent?
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Dec 17, 2010
I want to use PKI public and private encryption for authentication to allow for a more streamlined and secure application access control system. Any help in the generation of certificate and authentication will be useful. One more question, can i use System.Security.Cryptography.X509Certificates class for the same?
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Feb 8, 2012
im finish my application and im finish ex�cutable the my application. and my question he's, if posible somebady want open my executable the my application with vb.2008.is that posible
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Oct 16, 2009
how to display the list of all my application users who are currently online on a gridview and every user of my application sees who's online. How do I go about this if and if I am not using the built-in ASP.NET membership controls?
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Apr 15, 2012
How can I make vb.net application online. Is it possible? so it's can be access from anywhere..
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Jan 23, 2010
What kind of security has to be built into the application if it is connecting to a remote database server, mail server, on the company network/over a WAN?
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Feb 25, 2010
How to do this? creating an online for the user of application
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Mar 8, 2009
Would it be possible to get an application to run scripts from an online scource? and if there is no internet connection to run scripts already written in the program? By scripts i mean standard VB code?
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Oct 16, 2009
i want to know how to make online exam application using VB.NET & SQL SERVER,Suppose there is a question followed by 4 options, & USER have to select one of them,also there is a time restriction for example ,30 min for 25 question and time should be visible to user.then after time over he will be not able to do anything and redirected to result page.At last it will calculate the total no of marks scored and show in graph and report wise.
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Sep 26, 2011
I am a beginner in vb.net. I have made a project in this. Now I want to make it online.Also how to use asp.net with vb.net?
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Aug 18, 2009
I wish to implement some role based security in my application. Has anyone got any links with some usefull info on this subject.
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Oct 15, 2010
Through COM, one can potentially gain absolute control over a target system. For example: using javascript's ActiveXObject object in IE, one can create certain objects which were designed to have direct access or interaction with system properties and files.One would think common sense dictates users disable ActiveX features in IE immediately after installing the browser to ensure their system is protected while surfing the net, or at least paying close attention to which websites they permit. But, I doubt many average PC users know how or why to do this, or just get tired of mirco-managing it over time. I think any PC user or admin my COM class caters to would greatly appreciate not having to deal with that. Thankfully it looks like IE versions come packaged with ActiveX disabled by default nowadays.
I've built a very versatile COM class library in VB. I didn't intend for it to be callable from any website, but that feature is just part of the COM platform. I'd like to prevent the library from being called from IE unless the website is on a white-listed domain to proactively protect the user (and ultimately their entire intranet) from harm from malicious websites. What would be the best method in VB.Net to tell which application called my DLL, to be able to tell if it was called from any command or process originating from IE? And, what domain called my dll? System.Environment.GetCommandLineArgs()(0) gets me the calling application path. With this info, I can compare it to a black/white-list of applications.
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May 19, 2011
I made a desktop application and I Have a server on the internet and I need to make a connection between them
Can some one advise me about this problem?
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Jun 8, 2012
I am developing an application on VB.NET 2010, I am planning to make an online activation system, the idea behind is that Whenever someone installs my application, the application presents user an activation form, user will be entering product key, name and email address, and then system will establish a connection to a database which contains all the keys on WEB. So how should I make an efficient program to get rid of that.
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Nov 15, 2010
I want to develop a chat application with a server/client model, opening TCP or UDP sockets in VISUAL BASIC 2008. Is there a working example I can download, or some code to help me with this project? [code]Now, instead of 127.0.0.1 I should put some variable or something that keeps the IP address of the target machine?
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Oct 10, 2009
I found there is something related "OnceClick"[code]...
but how to use it?? Got better solution like tray icon prompt the new version available. then prompt user permission for update~
if user accept to update, it will download from server and install and restart application.
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Feb 25, 2010
How to do this?Should i use something like sandcastle?
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Feb 20, 2010
This is how I handle online activation for my application the problem is that this is very poor security because i display my Username and Password. I was thinking of using Myslq but i also have to input the Username and the password into the application. What other ways do big companies like Kaspersky handle online activation.
My code
Try
My.Computer.Network.DownloadFile("FTP SITE" + textbox1.Text + ".txt", "C:" + textbox1.Text + ".txt", "USER", "PASS")
Dim auth As String = My.Computer.FileSystem.ReadAllText("C:" + textbox1.Text + ".txt")
If auth = Textbox2.Text Then
Kill("C:" + textbox1.Text + ".txt")
[Code] .....
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Jul 23, 2009
I have built a MVC website on IIS6. I used the built-in ASP.NET Security without Membership, just the way it was implemented in the template solution. It is easy to secure a contoller or action, but now I need to expose the user management to an admin logged into the site. I understand that the builtin ASP controls for doing this are not "best practice" and are a dog to get working. So what is the best practice for offering user management through a ASP.NET MVC application?
I considered using the Entity Framework and wireing it up to the myriad of stored procs. but that seems awkward. I see options for AccountMembershipService and FormsAuthenticationService. That is what the existing project account controller uses. But, I am not fimilliar with either.I can't help but think that this should have already been there from the project template. This is a fundamental part of any website and you were given 15%, why not the rest?
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Jan 12, 2010
i created the following ActionFilterAttribute to check if a user is granted access to a page. I also created two custom Exceptions to handle different scenarios: NotLoggedInException and InsufficientPrivilegeException.
[Code]...
Where do I catch the exceptions to for instance redirect users if not authorized?Should I perhaps use the SiteMap authorization somewhere else instead of using the ActionFilterAttribute and throwing Exceptions..?
note: as you can see I'm using a custom class for BLL.Page. This is a ORM page which has Role based security stored in the database. SiteMap is also populated based on this data
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Mar 5, 2012
We are in the process of upgrading to WIN7 support and finding issues with the existing impersonant security model we previously used. So i am looking for suggestions before we hit the code.Application ABC.exe is running on a PC with restricted permissions
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Feb 2, 2010
i've got a free mysql database online hosted by 000webhost, i'm just wondering if i could connect to the mysql database, and if so what would the connectionstring be like? when i connect using php its something like this: new mysqli("mysql13.000webhost.com", "user", "password", "database1"), how do i translate this into a vb connection string, i can't decide what to put as the data source [code]if there's no way to connect, is there anyway for me to create an application that can store and access database online?
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May 2, 2009
I remember seeing a tutorial a while ago about making your application check online for updates..I did this a year or two ago but have since lost my example. Can someone explain how you do this or supply me with a link if you know a good tutorial?
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Sep 27, 2011
When I try to run my DLL in Autocad, I got the message below.Application attempted to perform an operation not allowed by the security policy. To grant this application the required permission, contact your.I know there are many threads on this error, but Im not sure about one thing.Can I resolved this on our FilesServer or I have to do something on each computers that will use the DLL ?
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Jun 10, 2011
Counting days independent of system calander ?
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Jun 10, 2011
I want to add a feature to my trial version of the application. After first activation, I want to make it limited to 90 days. But I am concerned about user's changing the date of system hence deceiving my application. Is there any possibility to make it fool proof in a way that even if user takes the calender back, application expires after 90 days of first activation? First activation date has been saved in the database.
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Apr 28, 2009
Out of 70 users of my application 2 are getting the following message when they to run the application... That assembly does not allow partially trusted callers. The reason for the error is that by default .net applications run from a network location have limited permissions. You need to use caspol.exe to add the network folder where your application is being run from to the Trusted Zone. If you do a search on these forums you will find plenty examples of how to do this. It is fairly simple. It will have to be done on every machine that will be running the application and a simple cmd file can be made to do this. The only difference is that I've asked our service desk to install the application to the local C drive which I believe they did.
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Sep 5, 2011
I need to implement, Controls Based Security in a Windows Forms Application using VB.NET. I tried google but did not get anything much to work with.
I would like if someone, could suggest some books or tutorials.
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Jun 10, 2010
This error occurs when I want to add my app to the startup keys
My.Computer.Registry.LocalMachine.OpenSubKey("SOFTWAREMicrosoftWindowsCurrentVersionRun", True).SetValue(Application.ProductName, app)
[code].....
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Mar 4, 2012
I am developing a chat application using online connection to a mysql databbase. But i am facing a problem. After 10 minutes, MySQL closes all the chat connections because of the 600 seconds timeout (has been set by the host service i am using). I don't understand why is that happening cause every piece of my code which needs data from the database opens and closes the connection (i mean that it dosn't maintain the connection after the query's execution). If i .close() and .dispose() the connection, it still appears in mysql at sleep mode (it terminates only if i exit the program).
Dim MySQLCon as New MySQLConnection
Dim MySQLCom as New MySQLCom
Dim counter as Short
[code]....
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