disable search / crawl by default for all new lists or library?

Question

I'm looking for a way to disable new lists and libraries from being searchable. Ultimately, this site will be public facing and even though I can tell people to remember to disable lists and libraries when they are created, it's not realistic that this will happen. I don't want all of them disabled, but just lists that explicitly turned on.

I could swear I did this with powershell on a previous site, defaulting $list.NoCrawl = $true but I can't remember how.

Answer 1

Another alternative is to create a Result Source for Search so that it only presents the data you want to present in search. That way you don't have to go and disable it all the time. You control how search returns results rather than try to manage your users.

Answer 2

You can create a SPListEventReceiver.ListAdded event receiver and write code inside it to disable list crawling.

Answer 3

Did you try this.

 $site = Get-SPSite http://siteColl  
$site | Get-SPWeb -Limit ALL | ForEach-Object {   
    foreach ($list in $_.lists) 
    {                  
                $list.NoCrawl = $true
                $list.Update()
    }
}
$site.Dispose()

Answer 4

Get-SPSite $siteUrl | Get-SPWeb -Limit all | ForEach-Object {

     Write-Host "`tProcessing Web: $($_.ServerRelativeUrl)…" -ForegroundColor White

     if (!$whatIf)    
     {    
         Write-Host "Setting properties on Web:" $_.Title -ForegroundColor White

         $_.NoCrawl = $true    
         #Update the web   
         $_.Update()    
     }    
     else    
     {    
         Write-Host "Reading properties on Web:" $_.Title -ForegroundColor White    
         Write-Host "No crawl enabled: "$_.NoCrawl

     }    
 }

 $site.Dispose()