![]() ![]() Adding the header in previous versions or other web frameworks is easy using web.config: If you are using ASP.NET MVC 5 or newer, this header is added automatically. The X-Frame-Options header ensure, that hackers don't iframe your site, in order to trick you into clicking links which you never intended to. In the following paragraphs, I have listed a number of HTTP headers that are easily configured and that everyone should implement. ![]() ![]() This post is a sum up of not only elmah.io headers added recently, but how to make it more difficult for hackers to compromise your ASP.NET (MVC, Web API, Core) website in general. I previously used Troy Hunt's ASafaWeb (now closed down), but that one has a slightly different focus and lacks some of the headers. securityheaders.io scans your website and make suggestions to which HTTP response headers to add in order to improve security. I recently discovered securityheaders.io, produced by the hyper productive Scott Helme. Looking for security in ASP.NET Core? Check out: The ASP.NET Core security headers guide. Here is one of my view folder (you can have few because of area).This is the first post in a series about ASP.NET security. You need to change some version number here too. This one also should contain a web.config. Now, do that in all your web.config that contain similar XML elements. You can find information through MSDN concerning Assembly Unification. ![]() Net compiler to use the new version if a reference is made to an older version. This can be done with a single statement in the Nuget Console. The second step is to run Nuget to update every packages. This way, if something is wrong, you will be able to go back and start from scratch. Preferably, label it with "Last Version MVC4". The first step is to make sure you commit all your code to your repository. This is not an easy step to do, migrating, but if you have your MVC4 already up-to-date and have used Nuget for your external libraries, the process won't be that hard. For example, razor version 2 won't work with MVC5. Before going further, notice that if you are migrating to MVC5 than some older version of other assembly won't be compatible. Also, Entity Framework is now at version 6. This come with a brand new razor version which is the third. First, MVC default version is now version 5 and not version 4. If you have Microsoft Visual Studio 2013 and create a new web application, you will notice some improvements. The new version of MVC is out since few weeks. ![]()
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