Configure an application gateway health probe

- [Instructor] Our application gateway is almost ready, … but still, we have some other things to configure. … In this case, we will work with the health probes. … Let's click on the application gateway, AppGW. … And then, on "health probes". … Health probes are used to check … whether one or more units in the backend pool … are working correctly. … The application gateway will send different requests, … HTTP or HTTPS, to see if those units are working correctly, … and if they are not, they will not be used … for backend redirection of the client requests. … We don't have any health probes created yet, … so we're going to click on "add" to create one. … We are going to name our health probe "HTTP Probe". … And then we need to select whether we are using HTTP, … or HTTPS for our health probe. … Because our backend pool is using HTTP, … in internet information server, … we are going to select HTTP as a protocol. … Then we are going to need to add one host name … to send requests to our backend pool. …