DNS_HOSTNAME_RESOLVE_FAILED

The DNS_HOSTNAME_RESOLVE_FAILED error occurs when attempting to connect to a private IP from an external rewrite. Although there's no error with the DNS resolution, no IP address is returned. This could be due to an issue with the domain name being queried, corrupted or malformed DNS responses, or network issues.

502

DNS_HOSTNAME_RESOLVE_FAILED:

Bad Gateway

Troubleshoot

I'm encountering an error and reviewing the docs at /flg~eyJhbGciOiJIUzI1NiJ9._f7-_v4.UOF4sbL_iSEWy1pmGRdwrOZv9ecwg1vMZdA-QM_6bpc/docs/errors/DNS_HOSTNAME_RESOLVE_FAILED to understand what's happening. Please help me resolve this by: 1. **Suggest the fix**: Analyze my codebase context and propose what needs to be changed to resolve this error 2. **Explain the root cause**: Break down why this error occurred: - What was the code actually doing vs. what it needed to do? - What conditions triggered this specific error? - What misconception or oversight led to this? 3. **Teach the concept**: Help me understand the underlying principle: - Why does this error exist and what is it protecting me from? - What's the correct mental model for this concept? - How does this fit into the broader framework/language design? 4. **Show warning signs**: Help me recognize this pattern in the future: - What should I look out for that might cause this again? - Are there similar mistakes I might make in related scenarios? - What code smells or patterns indicate this issue? 5. **Discuss alternatives**: Explain if there are different valid approaches and their trade-offs My goal is to fix the immediate issue while building lasting understanding so I can avoid and resolve similar errors independently in the future.

To troubleshoot this error, follow these steps:

  1. Check the domain name: Ensure that the domain name you are trying to resolve is spelled correctly and is a valid domain. Typos or incorrect domain names can lead to DNS lookup failures
  2. Check DNS configuration: Verify the configuration of the DNS server and ensure it is set up correctly
  3. Firewall and security software: Check if any firewall or security software on your system is blocking DNS requests. Ensure that the DNS queries are allowed through your firewall
  4. Inspect network connectivity: Ensure that there are no network issues that could be affecting the DNS resolution

Not what you were looking for?

Try filtering the errors by tag, code, or name on the Error Codes page.

Was this helpful?

supported.