[squid-users] Invalid Response

From: <apmailist@dont-contact.us>
Date: Fri, 09 Nov 2007 16:25:40 +0100

Hi,

I encounter An "invalid Response" on a particular site.
This is what I get from squid :
--------------------------
The requested URL could not be retrieved

While trying to process the request:

GET
/nms/jsp/webForm.jsp?fo=bl&id=S7Nn7isL2GdroOkABgb1B35boKb4Z2SiMGMFGb/VEkJUIAIA
HTTP/1.1
Host: somesite.com
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.9)
Gecko/20071025 Firefox/2.0.0.9
Accept:
text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5
Accept-Language: en,en-us;q=0.7,fr-fr;q=0.3
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Proxy-Connection: keep-alive
Proxy-Authorization: Basic Y<snip>8=
--------------------------

relaxed_header_parser value is at "warning".

I had a look at the headers, but couldn't find anything peculiar. But I'm not an
expert in this field.
Cache.log has said (I'm not 200% sure if it is related or not :
2007/11/05 16:11:53| ctx: enter level 30: '!ê«@'
2007/11/05 16:11:53| ctx: enter level 31: 'http://somesite.com/favicon.ico'
2007/11/05 16:11:53| ctx: enter level 32: 'http://somesite.com/favicon.ico'
2007/11/05 16:11:53| # ctx: suspiciously deep (32) nesting:

With Log_mime_headers on , I have
1194278039.445 135 10.7.85.46 TCP_MISS/502 1996 GET
http://somesite.com/nms/jsp/webForm.jsp? user-andrew DIRECT/213.139.xxx.xxx
text/html [Host: somesite.com\r\nUser-Agent: Mozilla/5.0 (Windows; U; Windows
NT 5.1; en-US; rv:1.8.1.9) Gecko/20071025 Firefox/2.0.0.9\r\nAccept:
text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5\r\nAccept-Language:
en,en-us;q=0.7,fr-fr;q=0.3\r\nAccept-Encoding: gzip,deflate\r\nAccept-Charset:
ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\nKeep-Alive: 300\r\nProxy-Connection:
keep-alive\r\nProxy-Authorization: Basic YXsnipcm8=\r\nPragma:
no-cache\r\nCache-Control: no-cache\r\n] [HTTP/1.0 502 Bad Gateway\r\nServer:
squid\r\nDate: Mon, 05 Nov 2007 15:53:59 GMT\r\nContent-Type:
text/html\r\nContent-Length: 1740\r\nExpires: Mon, 05 Nov 2007 15:53:59
GMT\r\nX-Squid-Error: ERR_INVALID_RESP 0\r\n\r]

Two tcpdumps, one from the squid server, another one from another internet
access point, show strange characters just between the headers and the html
stanza. See the "5ea" , then the "1" , and the "0".
But this is through Wireshark and I'm not sure about the exactness.

--------------------------
GET /nms/jsp/webForm.jsp?fo=bl&id=S7Nn9L2GdroOkABgb1B35boKb4Z2SiMGMFGb/VEkJUIAIA
HTTP/1.1
Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg,
application/x-shockwave-flash, application/vnd.ms-excel,
application/vnd.ms-powerpoint, application/msword, */*
Accept-Language: fr
UA-CPU: x86
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; .NET CLR
1.0.3705; .NET CLR 1.1.4322; Media Center PC 4.0; .NET CLR 2.0.50727)
Host: somesite.com
Connection: Keep-Alive

HTTP/1.1 200 OK
Date: Tue, 06 Nov 2007 04:42:03 GMT
Server: Apache/2.0.52 (Red Hat)
Transfer-Encoding: chunked
Content-Length: 1532
Connection: close
Content-Type: text/html; charset=utf-8

5ea
<html>
<head>
<META http-equiv="Content-Type" content="text/html; charset=utf-8">
snip
</body>
</html>

1

0

--------------------------

Thank you for your help,

Andrew
Received on Fri Nov 09 2007 - 08:25:43 MST

This archive was generated by hypermail pre-2.1.9 : Sat Dec 01 2007 - 12:00:02 MST