So I have a super weird one, and I’ve reproduced this fairly consistently so I dont think it’s anything obvious.
I have a forum on subdomain that uses apache and Letsencrypt running perfectly fine using Cloudflare to as just the DNS provider. I want to use some of the CF firewall features to protect form spam/abuse, so I turn on the orange cloud. It works perfectly, I check it form multiple sources and it’s running fine using the Commodo cert etc.
Now here’s where it gets weird, 24hrs later all requests to that subdomain return a 404 The Apache logs make no sense to me, they look like normal 404’s, it should just work. So I turn off the CF orange cloud, clear my DNS etc. And its still 404’ing!!! It requires an Apache restart to fix the issue! I’ve done this about 3-4 times now having exactly the same results. Do you folks have any ideas? I’m pretty sure its a bad config on my server side, but why does it break after 24 hours and not straight away?