User625300256 posted
The commercial web hosting company now supports my application with a server farm. The link, above, discusses a problem a security fix introduced and how to fix the problem. It seems there is a mechanism by which variables in the application are persisted
by putting them in a package and sending the package back and forth between the browser and the server. In a server farm, as load increases, it is possible for one web session to be handled by more than one server. The security fix assumes all interaction
will occur on a particular server. When it does not occur on a particular server the end user's interaction becomes unsatisfactory. The package and the server are lashed together with a MAC address. When the MAC address changes, as it would when the load master
moves the session to a different server, there is a malfunction. The Microsoft solution is to specify the MAC address in Web.config. That way the application provides the MAC address, not the hardware on which the application is running. I followed directions
and generated the XML (PowerShell) that goes into the Web.config file and put the XML where I was told to put it. After that the application refused to run. Presumably there is a syntax error in Web.config. Do you have any idea what is wrong with this Web.config
file? Thanks.
https://support.microsoft.com/en-us/help/2915218/resolving-view-state-message-authentication-code-mac-errors
<?xml version="1.0"?>
<!--
For more information on how to configure your ASP.NET application, please visit
http://go.microsoft.com/fwlink/?LinkId=169433
-->
<configuration>
<system.web>
<machineKey decryption="AES" decryptionKey="4B3E85D9CED6F125761D7E982855CBE192868631112152CF0EE230773287B185" validation="HMACSHA256"
validationKey="ED9A1B8121BC4AAE042C572692C02E086936918836EED4210492B797528B29FFCAA99F1E9226C7B7C30B6EFE2F57E5DC6DADE7EC3C4C6ADAFDBB861BB314C7E2" />
<compilation debug="true" targetFramework="4.5" />
<httpRuntime targetFramework="4.5" />
</system.web>
</configuration>
