Hi James!
> I always receive a HTTP 200 response to my browser How do you know that? Do you have a browser extension or are you using tcpdump/wireshark? Can you show this with a curl request, so that we understand whats going on excatly? Something like this should do the job: curl -vv http://1.2.3.4:80/nonexistingfile-bla-bla >/dev/null In what condition does this happen (when you have less than 2 backends alive or even with 2 or more backends alive?) > sends back HTTP 200 when at least 2 back end Nope, afaik haproxy should never generated 200 OK, expect on the stats page. When you see 200 OK, than that response is usually coming directly from the backend. > default_backend http--servers > [...] > backend http-servers ^ The config doesn't seem to match, there are 2 hyphens in the frontend configuration when referring to the backend, but the backend is named with a single hyphen. Can you please post the complete configuration (obfuscate confidential data, but leave everything else as is). Please post the output of haproxy -vv. In the end, either capturing the backend traffic with tcpdump or enabling the debug mode will show us what happens. Cheers, Lukas
