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Status code 408 is found in the response log

Last Updated: May 16, 2017

Status code 408 is found in the response log, for example:

  1. 121.42.17.228 - - [22/Apr/2015:10:12:58 +0800] "-" 408 - "-" "-"
  2. 121.42.17.220 - - [22/Apr/2015:10:13:01 +0800] "-" 408 - "-" "-"
  3. 121.42.17.205 - - [22/Apr/2015:10:13:04 +0800] "-" 408 - "-" "-"
  4. 42.120.107.25 - - [22/Apr/2015:10:13:05 +0800] "-" 408 - "-" "-"
  5. 42.120.107.30 - - [22/Apr/2015:10:13:06 +0800] "-" 408 - "-" "-"
  6. 42.120.107.4 - - [22/Apr/2015:10:13:07 +0800] "-" 408 - "-" "-"
  7. 171.104.67.132 - - [22/Apr/2015:10:13:10 +0800] "-" 408 - "-" "-"
  8. 42.120.107.2 - - [22/Apr/2015:10:13:10 +0800] "-" 408 - "-" "-"
  9. 121.42.17.222 - - [22/Apr/2015:10:13:10 +0800] "-" 408 - "-" "-"

The log is generated because Alibaba Cloud CDN performs a health check on the origin site when the upper-layer node of the Alibaba Cloud CDN sends a TCP request (similar to telnet) to the origin site. The health check does not affect services of the original site.

If the problem persists, contact Alibaba Cloud After-Sales Technical Support.

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