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Cloudflare DevelopersCD
Cloudflare Developers•2y ago•
14 replies
chip

Cloudflare SaaS custom hostname 525

Hi. I'm trying to test out Cloudflare SaaS with custom hostnames for a new feature of mine. I'll write out what I've currenlty done.

1. Created a fallback origin
https://proxy-fallback.fivemanage.com/
https://proxy-fallback.fivemanage.com/
. This is an A record to a IP where the page is running on a caddy webserver.
2. Created a CNAME
customers
customers
to
proxy-fallback.fivemanage.com
proxy-fallback.fivemanage.com
.
3. Created a custom hostname
whitelist.error-interactive.com
whitelist.error-interactive.com
that is a CNAME record to
customers.fivemanage.com
customers.fivemanage.com
.

FYI: In this case both domains go through CF and all the records mentioned here are proxied.

Now, if I go to the fallback domain, we see the webpage, if I go through
whitelist.fivemanage.com
whitelist.fivemanage.com
, its just a 525 handshake error.

I've tried to enable Total TLS with Google Trust Services, without that working - disabled again.

Am I missing some certificates? I have not touched anything related DCV. Neither did I add any TXT records for
error-interactive.com
error-interactive.com
domain. Could it be related to Caddy? (I'm open to change to anything else if need be).

Would be great if someone could give some pointers. (Scream at me if I'm duplicating a post, couldn't find any) 🙂
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