So, I finish the deployment of a multi-server SharePoint farm, and I setup the Search Service Application; I was able to configure Search and browse the admin pages in central admin successfully. After trying to browse the search admin main page from central admin a couple of days later, I got the error message "The base type 'Microsoft.Office.Server.Search.Internal.UI.SearchFarmDashboard' is not allowed for this page. The type is not registered as safe". To resolve this I added the following line to the Central Admin web site's web.config:
But when I clicked the Search Service Application name from searchfarmdashboard.aspx I got the error message "Code blocks are not allowed in this file." To resolve the issue, I added the following line to the Central Admin web site's web.config:
Hope this helps!