Why error "client sent HTTP/1.1 request without hostname" occurs
Issue
- Why error "client sent HTTP/1.1 request without hostname" occurs?
- After Apache httpd upgrade, 400 status code is found in access log.
- The message "client sent HTTP/1.1 request without hostname (see RFC2616 section 14.23)" is logged in error.log
Environment
- Red Hat Enterprise Linux
- httpd
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