As defined in Internet Information Services (IIS) an application Pool is a collection of one or more URLs that are serviced by one or a set of worker processes. After installation of SharePoint, open IIS Manager. You will notice application pools in iis.
IIS
Sharepoint 2013 – 404 Not Found while accessing site collection from outside
Sharepoint 2013 – 404 Not Found while accessing site collection from outside.
Partial Index Reset of a single content source
Partial Index Reset of a single content source. SharePoint will rebuild the index for these sources, when the next full crawl is started.
IIS Reset on all SP Servers using PowerShell
This script will list all SP Servers and restarts IIS on all of them. add-PSSnapin microsoft.sharepoint.powershell $spserver = get-spserver | ?{$_.role -eq “Application”} foreach ($server in $spserver) { write-host “Performing IIS Reset on Server:”$server.name iisreset $server.Name }