Proxied DNS blocks server connections.
Excuse me if I don't understand something I am new to networking and security, I will try my best to explain the issue.
I'm currently working on a web application that requires a server backend. To avoid using the server's IPv4 address directly, I've set up a DNS A record to use a hostname instead. Everything works perfectly when the DNS setting is on 'DNS Only' mode. However, when I switch to 'Proxied' mode, I start encountering issues where I can no longer connect to the server, and I receive '400 Bad Request' errors.
I've experimented with various Cloudflare settings to resolve this issue but haven't had any success so far. Here are some of the things I've tried:
1. Turning off Cloudflare SSL/TLS.
2. Setting up various Cloudflare WAF settings to try unblock connections to the hostname.
3. Switching between Argo Tunnel and DNS Records.
I'm reaching out to see if anyone has encountered a similar issue or has any suggestions on what else I can try to resolve this problem. Any advice or guidance would be greatly appreciated. Thank you!
I'm currently working on a web application that requires a server backend. To avoid using the server's IPv4 address directly, I've set up a DNS A record to use a hostname instead. Everything works perfectly when the DNS setting is on 'DNS Only' mode. However, when I switch to 'Proxied' mode, I start encountering issues where I can no longer connect to the server, and I receive '400 Bad Request' errors.
I've experimented with various Cloudflare settings to resolve this issue but haven't had any success so far. Here are some of the things I've tried:
1. Turning off Cloudflare SSL/TLS.
2. Setting up various Cloudflare WAF settings to try unblock connections to the hostname.
3. Switching between Argo Tunnel and DNS Records.
I'm reaching out to see if anyone has encountered a similar issue or has any suggestions on what else I can try to resolve this problem. Any advice or guidance would be greatly appreciated. Thank you!
Welcome to the official Cloudflare Developers server. Here you can ask for help and stay updated with the latest news
85,042Members
Resources
Similar Threads
Was this page helpful?
