How to configure Cloudflare with NodeBalancers?
Hi, I am just new on using node balancers. Currently, my setup is like this. I have only one node (planning to add 2 or 3 more), in my node balancer. And on cloudflare I pointed the A and AAAA records to my node balancer's public IP address both v4 and v6.
My node balancer is configured this way.
Port: 80
Protocol: HTTP
Algo: Round Robin
Session Stickiness: HTTP Cookie
The domain in cloudflare is already fully propagated, but accessing the domain on browser, it gives me a "Web Server Down" error.
Please help. Thanks!
1 Reply
jhartman
Linode Staff
What you've described is how I how one of my own NodeBalancers configured through CloudFlare, so this sounds like your backend Linode is experiencing issues serving the requested content. In order to trace back the issue, I would do the following:
- Connect to your Linode(s) using either SSH (Secure Shell) or LISH (Linode Shell) Console and check the
systemctlstatus of the underlying application - Perform a
curlof the underlying Linode's HTTP endpoint. After verifying that the Linode is serving content as expected, zoom out and perform the same test on the NodeBalancer's actual IP address.
If you are able to access the content directly through the Linode and NodeBalancer, this then suggests an issue with your CLoudFlare DNS entry or Proxy settings. I would encourage you to pick up at step 3 of the guide below: