[squid-users] Problems Using squid 2.6 as a transparent web cache

From: Donoso Gabilondo, Daniel <donoso.d_at_ikusi.es>
Date: Wed, 11 Jun 2008 11:34:26 +0200

Hello,
I have an application in linux that uses http resources (videos,
images..). These resources are in other machine with a http server
running (under windows).

The linux application always download the resources. I installed and
configured squid in the linux machine to cache these resources, but the
linux application always downloads them from the http server. I don't
know how can I resolve the problem. I need some help, please.

The linux ip address is: 192.168.240.23 and the windows with http server
ip is: 192.168.233.158

This is my squid.conf file content:

acl all src 0.0.0.0/0.0.0.0
acl manager proto cache_object
acl localhost src 127.0.0.1/255.255.255.255
acl to_localhost dst 127.0.0.0/8
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
http_access allow manager localhost
http_access deny manager
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access allow localhost
http_access deny all
icp_access allow all
hierarchy_stoplist cgi-bin ?
access_log /var/log/squid/access.log squid
acl QUERY urlpath_regex cgi-bin \?
cache deny QUERY
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern . 0 20% 4320
acl apache rep_header Server ^Apache
broken_vary_encoding allow apache
coredump_dir /var/spool/squid
cache_dir ufs /var/spool/squid 700 32 512
http_port 3128 transparent
icp_port 0
cache_peer localhost.home.nl parent 8080 0 default
acl HOME dstdomain .home.nl
always_direct allow all
never_direct allow all

I executed these commands:

iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j DNAT --to
192.168.240.23:3128
iptables -t nat -A PREROUTING -i eth0 -p tcp --dport 80 -j REDIRECT
--to-port 3128

The cache.log content is this:

2008/06/11 11:30:52| Starting Squid Cache version 2.6.STABLE19 for
i386-redhat-linux-gnu...
2008/06/11 11:30:52| Process ID 8617
2008/06/11 11:30:52| With 1024 file descriptors available
2008/06/11 11:30:52| Using epoll for the IO loop
2008/06/11 11:30:52| ipcacheAddEntryFromHosts: Bad IP address 'tele1'
2008/06/11 11:30:52| ipcacheAddEntryFromHosts: Bad IP address 'svc1'
2008/06/11 11:30:52| DNS Socket created at 0.0.0.0, port 42897, FD 6
2008/06/11 11:30:52| Adding nameserver 192.168.202.11 from
/etc/resolv.conf
2008/06/11 11:30:52| Adding nameserver 192.168.202.13 from
/etc/resolv.conf
2008/06/11 11:30:52| User-Agent logging is disabled.
2008/06/11 11:30:52| Referer logging is disabled.
2008/06/11 11:30:52| Unlinkd pipe opened on FD 11
2008/06/11 11:30:52| Swap maxSize 716800 KB, estimated 55138 objects
2008/06/11 11:30:52| Target number of buckets: 2756
2008/06/11 11:30:52| Using 8192 Store buckets
2008/06/11 11:30:52| Max Mem size: 8192 KB
2008/06/11 11:30:52| Max Swap size: 716800 KB
2008/06/11 11:30:52| Local cache digest enabled; rebuild/rewrite every
3600/3600 sec
2008/06/11 11:30:52| Rebuilding storage in /var/spool/squid (CLEAN)
2008/06/11 11:30:52| Using Least Load store dir selection
2008/06/11 11:30:52| Set Current Directory to /var/spool/squid
2008/06/11 11:30:52| Loaded Icons.
2008/06/11 11:30:53| Accepting transparently proxied HTTP connections at
0.0.0.0, port 3128, FD 13.
2008/06/11 11:30:53| WCCP Disabled.
2008/06/11 11:30:53| Ready to serve requests.
2008/06/11 11:30:53| Configuring Parent localhost.home.nl/8080/0
2008/06/11 11:30:53| Done reading /var/spool/squid swaplog (0 entries)
2008/06/11 11:30:53| Finished rebuilding storage from disk.
2008/06/11 11:30:53| 0 Entries scanned
2008/06/11 11:30:53| 0 Invalid entries.
2008/06/11 11:30:53| 0 With invalid flags.
2008/06/11 11:30:53| 0 Objects loaded.
2008/06/11 11:30:53| 0 Objects expired.
2008/06/11 11:30:53| 0 Objects cancelled.
2008/06/11 11:30:53| 0 Duplicate URLs purged.
2008/06/11 11:30:53| 0 Swapfile clashes avoided.
2008/06/11 11:30:53| Took 0.3 seconds ( 0.0 objects/sec).
2008/06/11 11:30:53| Beginning Validation Procedure
2008/06/11 11:30:53| Completed Validation Procedure
2008/06/11 11:30:53| Validated 0 Entries
2008/06/11 11:30:53| store_swap_size = 0k
2008/06/11 11:30:53| storeLateRelease: released 0 objects
Received on Wed Jun 11 2008 - 09:34:36 MDT

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