Hi Amos, Thanks a lot for your help. There is an issue in web-server connectivity which has been solved as you suggested. I could able to connect the webserver via squid successfully. But there is an issue in caching webpages . I am always getting "TCP/MISS 200" messages from squid. I could not able to see a single "TCP_HIT" message even I try to access the same webpages from browser again and again. 1376909027.627 211 10.1.1.1 TCP_MISS/200 416 GET http://b.scorecardresearch.com/p? - DIRECT/120.29.145.65 image/gif [Host: b.scorecardresearch.com\r\nUser-Agent: Mozilla/5.0 (X11; Linux i686; rv:10.0.12) Gecko/20130109 Firefox/10.0.12\r\nAccept: image/png,image/*;q=0.8,*/*;q=0.5\r\nAccept-Language: en-us,en;q=0.5\r\nAccept-Encoding: gzip, deflate\r\nConnection: keep-alive\r\nReferer: http://in.yahoo.com/?p=us\r\nCookie: UID=6cdd678-61.213.189.48-1366091370; UIDR=1366091370\r\n] [HTTP/1.1 200 OK\r\nContent-Length: 43\r\nContent-Type: image/gif\r\nDate: Mon, 19 Aug 2013 10:27:24 GMT\r\nConnection: keep-alive\r\nPragma: no-cache\r\nExpires: Mon, 01 Jan 1990 00:00:00 GMT\r\nCache-Control: private, no-cache, no-cache=Set-Cookie, no-store, proxy-revalidate\r\n\r] Squid.conf --------------- acl all src all acl manager proto cache_object acl localhost src 127.0.0.1/32 ::1 acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 ::1 acl SSL_ports port 443 # https acl SSL_ports port 563 # snews acl SSL_ports port 873 # rsync 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 Safe_ports port 631 # cups acl Safe_ports port 873 # rsync acl Safe_ports port 901 # SWAT acl purge method PURGE acl CONNECT method CONNECT http_access allow manager localhost http_access deny manager http_access deny !Safe_ports http_reply_access allow all http_port 3128 http_port 3129 tproxy hierarchy_stoplist cgi-bin ? cache_mem 256 MB cache_dir ufs /var/spool/squid3 1000 16 256 maximum_object_size 20480 KB access_log /var/log/squid3/access.log cache_log /var/log/squid3/cache.log mime_table /usr/share/squid3/mime.conf log_mime_hdrs on refresh_pattern ^ftp: 1440 20% 10080 refresh_pattern ^gopher: 1440 0% 1440 refresh_pattern . 0 20% 4320 acl apache rep_header Server ^Apache coredump_dir /var/spool/squid3 acl localnet src 10.1.1.0/24 http_access allow localhost http_access allow localnet cache allow all request_header_access Allow allow all request_header_access Authorization allow all request_header_access WWW-Authenticate allow all request_header_access Proxy-Authorization allow all request_header_access Proxy-Authenticate allow all request_header_access Cache-Control allow all request_header_access Content-Encoding allow all request_header_access Content-Length allow all request_header_access Content-Type allow all request_header_access Date allow all request_header_access Expires allow all request_header_access Host allow all request_header_access If-Modified-Since allow all request_header_access Last-Modified allow all request_header_access Location allow all request_header_access Pragma allow all request_header_access Accept allow all request_header_access Accept-Charset allow all request_header_access Accept-Encoding allow all request_header_access Accept-Language allow all request_header_access Content-Language allow all request_header_access Mime-Version allow all request_header_access Retry-After allow all request_header_access Title allow all request_header_access Connection allow all request_header_access Proxy-Connection allow all request_header_access User-Agent allow all request_header_access Cookie allow all request_header_access All deny all Am I missing something in squid.conf? root@debian:/etc/squid3# netstat -natp | grep squid tcp 0 0 10.1.1.1:39094 121.241.96.8:80 ESTABLISHED 3096/(squid) tcp6 0 0 :::3128 :::* LISTEN 3096/(squid) tcp6 0 0 :::3129 :::* LISTEN 3096/(squid) tcp6 0 0 216.115.100.103:80 10.1.1.1:35248 ESTABLISHED 3096/(squid) tcp6 0 0 216.115.100.103:80 10.1.1.1:35247 ESTABLISHED 3096/(squid) tcp6 0 0 182.50.136.239:80 10.1.1.1:60101 ESTABLISHED 3096/(squid) tcp6 0 0 96.7.97.170:80 10.1.1.1:53156 ESTABLISHED 3096/(squid) tcp6 0 0 216.115.100.103:80 10.1.1.1:35245 ESTABLISHED 3096/(squid) tcp6 0 0 216.115.100.103:80 10.1.1.1:35246 ESTABLISHED 3096/(squid) tcp6 0 0 121.241.96.8:80 10.1.1.1:41094 ESTABLISHED 3096/(squid) tcp6 0 0 216.115.100.103:80 10.1.1.1:35244 ESTABLISHED 3096/(squid) tcp6 0 0 72.246.188.105:80 10.1.1.1:56477 ESTABLISHED 3096/(squid) tcp6 0 0 23.15.10.83:80 10.1.1.1:49959 ESTABLISHED 3096/(squid) tcp6 0 0 67.195.141.200:80 10.1.1.1:51255 ESTABLISHED 3096/(squid) tcp6 0 0 23.15.10.49:80 10.1.1.1:49727 ESTABLISHED 3096/(squid) tcp6 0 0 106.10.192.89:80 10.1.1.1:47737 ESTABLISHED 3096/(squid) tcp6 0 0 106.10.192.89:80 10.1.1.1:47736 ESTABLISHED 3096/(squid) tcp6 0 0 216.115.100.103:80 10.1.1.1:35249 ESTABLISHED 3096/(squid) root@debian:/etc/squid3# Regards, Saravanan N
