David Ruckman, Senior Consultant
Ths is just a quick note on an issue I ran in to when trying to lock down my CM and CD instances in Azure - maybe this will save you a few minutes if it happens to you.
It's easy enough to restrict access to your Sitecore Azure App Services by IP address. Just log on to your Azure subscription and navigate to
App Services >> *your app service* >> Networking >> Configure IP Restrictions
Here you are able to add individual IP addresses or ranges of IP addresses that you wish to grant access to your service. (NOTE: if there are no IPs in the list, then ALL IP addresses will have access). 
But what if you add one or more IPs and your App Service is still open to all IP addresses? Well, that's what happened to me.
You can read the full article by clicking here.
