Hello, I have gone through refrences you provided and following that I have updated squid version too but still no luck. now even I have made squid and originserver port to be same. Here is my full squid.conf http_port 80 accel defaultsite=xxx.xx.xxx.118 cache_peer xxx.xx.xxx.118 parent 80 0 no-query originserver name=myAccel acl manager proto cache_object acl localhost src 127.0.0.1/32 acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 acl localnet src 10.0.0.0/8 # RFC1918 possible internal network acl localnet src 172.16.0.0/12 # RFC1918 possible internal network acl localnet src 192.168.0.0/16 # RFC1918 possible internal network acl SSL_ports port 443 acl Safe_ports port 80 # http acl Safe_ports port 21 # ftp acl Safe_ports port 443 # https acl Safe_ports port 70 # gopher acl Safe_ports port 210 # wais acl Safe_ports port 1025-65535 # unregistered ports acl Safe_ports port 280 # http-mgmt acl Safe_ports port 488 # gss-http acl Safe_ports port 591 # filemaker acl Safe_ports port 777 # multiling http acl CONNECT method CONNECT acl our_sites dst xxx.xx.xxx.118 http_access allow manager localhost http_access deny manager http_access deny !Safe_ports http_access deny CONNECT !SSL_ports http_access allow localnet http_access allow our_sites cache_peer_access myAccel allow our_sites cache_peer_access myAccel deny all icp_access allow localnet icp_access deny all htcp_access allow localnet htcp_access deny all http_port 3128 hierarchy_stoplist cgi-bin ? access_log /var/log/squid/access.log squid refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern -i (/cgi-bin/|\?) 0 0% 0 refresh_pattern . 0 20% 4320 icp_port 3130 coredump_dir /var/spool/squid Here is my HTTP Respnse Header Status=OK - 200 Content-Type=application/json Cache-Control=max-age=6000 Server=Jetty(6.1.25) X-Cache=MISS from cache001.com X-Cache-Lookup=MISS from cache001.com:80 Via=1.0 cache001.com (squid/3.0.STABLE25), 1.0 localhost.localdomain Date=Wed, 19 Jan 2011 14:19:36 GMT Content-Length=132 Age=0 Please guide me. Thanks -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/What-http-headers-required-for-squid-to-work-tp3223434p3225415.html Sent from the Squid - Users mailing list archive at Nabble.com.