On 19/08/2013 11:29 p.m., SaRaVanAn wrote:
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]
This response object has been configured explicitly and rather
emphatically to prevent caching.
Expires, no less than 5 ways to force MISS or at least REFRESH behaviour
from Cache-Control, and even the invalid Pragma header in case something
obeys it.
Several of these are way beyond what server frameworks add by default.
So it is clearly an explicit admin design that this object be a MISS.
Perhapse it woudl be a good idea to let it, yes?
Amos
Squid.conf
---------------
acl all src all
Please run "squid -k parse". If your Squid is not at least complaining
about the above line being redundant then your proxy is seriously outdated.
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
"allow all" is the default for http_reply_access. You can drop the above
line entirely from your config.
You are also missing the basic security protection for CONNECT requests:
http_access deny CONNECT !SSL_ports
http_port 3128
http_port 3129 tproxy
hierarchy_stoplist cgi-bin ?
You can omit "hierarchy_stoplist" from your config.
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
You are missing the refresh pattern instructing Squid how to safely
handle dynamic responses without expiry information:
refresh_pattern -i (/cgi-bin/|\?) 0 0% 0
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
"allow all" is teh default for the "cache" directive. You can omit this
line entirely from your config file.
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?
Amos
