I'm getting tons of these, and I can't figure out why. Several per second when it's happening, which isn't always. 2006-12-07 20:19:27.370 [NOTICE] [188.8.131.52:61844-0#ap] Premature end of response header. 2006-12-07 20:19:27.709 [NOTICE] [184.108.40.206:2024-0#ap] Premature end of response header. 2006-12-07 20:19:27.822 [NOTICE] [220.127.116.11:2349-0#ap] Premature end of response header. Also, when my rails application attempts to send a 404 header, litespeed sends a 503 header and doesn't log anything about why to it's stderr or error logfiles. The logfile shows that a 200 response was sent - wierd! 18.104.22.168 - - [08/Dec/2006:11:07:26 -0600] "GET /asdfasdf2 HTTP/1.1" 200 - "-" "Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:22.214.171.124) Gecko/20060613 Camino/1.0.2" Curl shows the 503 header everybean:~/ap inspire$ curl --head http://allpoetry.com/asdfasdf2 HTTP/1.1 503 Service Unavailable Server: LiteSpeed Date: Fri, 08 Dec 2006 17:08:06 GMT Connection: close Lightppd at the localhost (sorry, rails' default), shows the proper header everybean:~/ap inspire$ curl --head http://localhost:3000/asdfasdf2 HTTP/1.1 404 Not Found Connection: close Date: Fri, 08 Dec 2006 17:07:36 GMT Content-Type: text/html; charset=iso-8859-1 Set-Cookie: _session_id=blah; path=/; expires=Fri, 05 Jan 2007 16:29:51 GMT Cache-Control: no-cache Expires: -1 Server: lighttpd/1.3.13 No core files, running 2.2.5 std, though the same happens on my other server running 2.2.6 Thanks for any help!