How to Use the ASP.NET Validation Control to Validate the User Input. Download Source - 21.88 KB Introduction ASP.NET Validation control is a series of controls which can help us to validate the user input and prevent the malicious data from being posted to the server easily.
And according to the browser’s security limit, the ASP.NET Validation control provides two ways of validation: Server Side and Client Side. This article demonstrates how to use ASP.NET Validation controls in that two ways. This is only partial of the ASP.NET samples in All-In-One Framework. Background Microsoft All-In-One Code Framework delineates the framework and skeleton of Microsoft development techniques through typical sample codes in three popular programming languages (Visual C#, VB.NET, Visual C++). Using the Code Sample Scenario In order to explain the Validation controls more clearly, the sample will simulate a user register module, it contains: email and password. ASP.NET Validation Controls Basics There are 6 controls included: General properties: ClientValidation Sample. Extending ASP.NET role based Security with Custom Security Module (Permission Based, Page Level Authorization) Introduction This project intends to extend the default ASP.NET role based Security to include Permission Based / Page Level Authorization.
Permission rules to Allow/Deny access to website resources (like "Folder/File.aspx") will be stored in the database. Our "ADHPermissionsModule" validates each request on the basis of these Permission rules. A basic ASP.NET MVC version of the same module (AadhaarMVC.zip) is included now (please pardon me for insufficient validations). The Custom Security Module's name (included inside the Controllers directory of MVC Project) is "ADHPermissionsModuleMVC" . Background ASP.NET provides us a very good default Role Based security to control and authorize access to our website. Although in smaller web applications, we already know the structure of the website and the required Roles, hence access rules can be directly configured by modifying (manually or programmatically) the web.config to allow/restrict access to various resources/pages.
Using the Code. Using programmatic Impersonation from an ASP.NET Page. Several times I've heard the following question asked: I have an ASP.NET application and I need access to network resources that my account running ASP.NET does not have.
How can I change the permissions at runtime without setting up Impersonation or using a high privilige account for my ASP.NET user account? In short, how can you raise permissions of an ASP.NET request at runtime to perform some task that requires rights that the standard account ASP.NET runs under cannot handle? To accomplish this you can use various system API calls (LogonUser, ImpersonateLoggedOnUser and RevertToSelf) to change the currently active account ASP.NET runs under. This would be Environment.UserName as opposed to Page.User. The only time when Page.User reflects Environment.User is when Impersonation is enabled in which case the ASP.NET automatically changes the impersonation on the underlying ASP.NET thread to match of who's logged on.
When you run this code you should see: Caveats Alternatives. Webserver Security Check. Insecure Web Servers This article is dedicated to a very important topic: Security of webservers. If you are a server administrator , you can find tips on how to secure your server. If your website is on a public webhosting , you can make a security check. If you are programming web applications, you can find tips about secure programming.
This article covers 3 main topics: How to remove threats by malicious users on shared environments (Hostings) How to protect efficiently against malware How to learn secure web programming and defeat hackers Security Check with Shocking Results On the one hand, there are the hackers which try to invade into a server from outside. Above, you can download a PHP script and an equivalent ASP script which you can run on your web server to check the security. The PHP script runs on PHP 4 and PHP 5 and has been tested on Windows and Linux. The script output may look like this: Do you want to host your private database on such an insecure host? Safe_mode.