How to solve validation of ViewState MAC failed?
How to solve validation of ViewState MAC failed?
Validation of viewstate MAC failed. If this application is hosted by a web farm or cluster, ensure that configuration specifies the same validationKey and validation algorithm. AutoGenerate cannot be used in a cluster.
How do I enable ViewState on Mac?
ASP.NET provides MAC validation for ViewState parameters by adding ‘<%@Page EnableViewStateMAC=’True’ %>’ on the specific page or by adding ” inside your web.
What is machineKey in web config?
What Is Machine Key? The machineKey element in the ASP.NET web. config file specifies the algorithm and keys that ASP.NET will use for encryption. By default the validationKey and the decryptionKey keys are set to AutoGenerate which means the runtime will generate a random key for use.
How do you validate a MAC address?
One way to represent them is to form six pairs of the characters separated with a hyphen (-) or colon(:). For example, 01-23-45-67-89-AB is a valid MAC address. Another way to represent them is to form three groups of four hexadecimal digits separated by dots(.). For example, 0123.4567.
How do I know if my viewstate is encrypted?
If your ‘custom control’ needs encryption call this. If you are developing a custom control that deals with potentially sensitive information, call the RegisterRequiresViewStateEncryption method to register the control with the page and ensure view state for the control is encrypted.
How do I find Machinekey?
To do this, please follow these instructions:
- Go to IIS console on one of the webservers > Sites > select the Pyramid website > double-click on Machine Key icon in center pane.
- In Machine Key dialog, click on Generate Keys and then Apply.
- Copy the generated validation and decryption keys to the notepad.
How do I set up Machinekey?
If you have access to the IIS management console for the server where Orchard is installed, it is the easiest way to set-up a machine key. Uncheck “Automatically generate at runtime” for both the validation key and the decryption key. Click “Generate Keys” under “Actions” on the right side of the panel. Click “Apply”.