Always_populate_raw_post_data setting in PHP 5.6 & Magento 2.0
Does Magento 2 throw an error about always_populate_raw_post_data being set to 0? And are you having problems installing or updating Magento with PHP 5.6 and PHP 7? Then read on, because here is how to fix upgrades to Magento 2.0 in PHP 5.6 and higher: PHP 7+.
RewriteProxy with .htaccess in IIS
Rewrite and proxy HTTP requests in IIS using a .htaccess. In my case scenario, I had to proxy requests in IIS, because a website was moved from web server A to B, and the DNS wasn't updated yet. All HTTP requests for the moved website are handled in IIS' Default Web Site; that's the wildcard host, and the original host no longer existed there. We needed to match our website and proxy those requests to the new IIS web server. This can either be done using a proxy with URL Rewrite, IIS Application Request Routing (ARR), or a .htaccess file handled by Helicon Ape.
PowerShell return value, exit code, or ErrorLevel equivalent
Here is how you can verify whether an external command in PowerShell was executed successfully or not by checking its errorlevel. Simply by verifying the PowerShell exit code using the $? operator or $LASTEXITCODE.