FortiAppSec Cloud
FortiAppSec Cloud delivers unified application security and performance with WAF, bot protection, GSLB, DDoS mitigation, threat analytics, and CDN.
guptas
Staff
Staff
Article Id 312329
Description This article describes how to identify the health status of the real server i.e. whether it is up or down.
Scope FortiAppSec Cloud.
Solution

In order to verify if the backend server is up or down, configure Health Check settings for the backend server in FortiWeb Cloud.

 

Navigate to Network -> Origin Servers -> Health Check:

 

HC app.jpg

 

FortiWeb will send a request for a / URL path. The response from the server should be an HTTP code of 200, 'OK'.

If not, FortiWeb will mark the server as down and services will be impacted even if the server is up and ready to serve the request. 

It is also possible to obtain the logs generated in Audit Logs if the server is out of service.

 

AuditLogs for HC.png
Note:

If there will be only one origin server, do not use a health check module. It is only recommended to use a Health Check module when there will be more than 1 origin server with an application.