nginx timeout_error ai_generated true

408 Request Timeout: client header timeout

ID: nginx/client-header-timeout

Also available as: JSON · Markdown
80%Fix Rate
84%Confidence
3Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
1 active — — —

Root Cause

Client took too long to send request headers.

generic

Workarounds

  1. 88% success Set reasonable timeout: client_header_timeout 10s
  2. 85% success Use rate limiting module to protect against slow clients

Dead Ends

Common approaches that don't work:

  1. Set client_header_timeout very high 82% fail

    Slowloris attack vector

  2. Disable timeout entirely 88% fail

    DoS vulnerability