Hello list, I have Squid version 3.0.STABLE 10 installed on Gentoo linux box. All things are working fine, means caching proxying etc. There is a problem with some sites. When I am accessing one of those sites, in access.log I am getting NONE/411 3692 POST http://wwww.justdial.com/autosuggest_category_query_main.php? - NONE/- text/html And on the webpage I am getting whole error page of squid. Actually its a search related page. In the search criteria field as soon as I am typing after two words I am getting this error. The website in a question is "http://justdial.com". But it works without the Squid. I tried to capture the http headers also which are as below http://wwww.justdial.com/autosuggest_category_query_main.php?city=Bangalore&search=Ka POST /autosuggest_category_query_main.php?city=Bangalore&search=Ka HTTP/1.1 Host: wwww.justdial.com User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.16) Gecko/20080807 Firefox/2.0.0.16 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-us,en;q=0.7,hi;q=0.3 Accept-Encoding: gzip,deflate Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7 Keep-Alive: 300 Connection: keep-alive Referer: http://wwww.justdial.com/ Cookie: PHPSESSID=d1d12004187d4bf1f084a1252ec46cef; __utma=79653650.2087995718.1245064656.1245064656.1245064656.1; __utmb=79653650; __utmc=79653650; __utmz=79653650.1245064656.1.1.utmccn=(direct)|utmcsr=(direct)|utmcmd=(none); CITY=Bangalore Pragma: no-cache Cache-Control: no-cache HTTP/1.x 411 Length Required Server: squid/3.0.STABLE10 Mime-Version: 1.0 Date: Mon, 15 Jun 2009 11:18:10 GMT Content-Type: text/html Content-Length: 3287 Expires: Mon, 15 Jun 2009 11:18:10 GMT X-Squid-Error: ERR_INVALID_REQ 0 X-Cache: MISS from bijayant.kavach.blr X-Cache-Lookup: NONE from bijayant.kavach.blr:3128 Via: 1.0 bijayant.kavach.blr (squid/3.0.STABLE10) Proxy-Connection: close Please suggest me what could be the reason and how to resolve this. Any help/pointer can be a very helpful for me. Bijayant Kumar Get your new Email address! Grab the Email name you've always wanted before someone else does! http://mail.promotions.yahoo.com/newdomains/aa/