Re: [squid-users] How to handle 302 redirect when setting up squid as transparent proxy?

yegle wrote:
> Hi list,
> I'm trying to set up a squid server as transparent proxy,however I
> found some errors when handling 302 redirect pages.
>
> Here's my configure file:
> 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 purge method PURGE
> acl CONNECT method CONNECT
> http_access allow manager localhost
> http_access deny manager
> http_access allow purge localhost
> http_access deny purge
> http_access deny !Safe_ports
> http_access deny CONNECT !SSL_ports
> http_access allow localnet
> http_access allow localhost
> http_access deny all
> icp_access allow localnet
> icp_access deny all
> htcp_access allow localnet
> htcp_access deny all
> http_port 3128 transparent
> hierarchy_stoplist cgi-bin ?
> cache_mem 512 MB
> maximum_object_size_in_memory 512 KB
> cache_dir ufs /var/cache/squid 10240 16 256
> minimum_object_size 0 KB
> maximum_object_size 40960 KB
> access_log /var/log/squid/access.log squid
> refresh_pattern ^ftp: 1440 20% 10080
> refresh_pattern ^gopher: 1440 0% 1440
> refresh_pattern (cgi-bin|\?) 0 0% 0
> refresh_pattern . 0 20% 4320
> visible_hostname none
> icp_port 3130
> forwarded_for off
> coredump_dir /var/cache/squid
>
> Test url:
> http://evernote.com
>
> Normal interaction:
> $ curl -v evernote.com
> * About to connect() to evernote.com port 80 (#0)
> * Trying 205.234.25.136... connected
> * Connected to evernote.com (205.234.25.136) port 80 (#0)
>> GET / HTTP/1.1
>> User-Agent: curl/7.20.0 (x86_64-pc-linux-gnu) libcurl/7.20.0 GnuTLS/2.8.5 zlib/1.2.3
>> Host: evernote.com
>> Accept: */*
>>
> < HTTP/1.1 302 Object Moved
> < Location: http://www.evernote.com/
> * Connection #0 to host evernote.com left intact
> * Closing connection #0
>
> Unnormal interaction with squid transparent proxy:
> $ curl -v evernote.com
> * About to connect() to evernote.com port 80 (#0)
> * Trying 205.234.25.136... connected
> * Connected to evernote.com (205.234.25.136) port 80 (#0)
>> GET / HTTP/1.1
>> User-Agent: curl/7.20.0 (x86_64-pc-linux-gnu) libcurl/7.20.0 GnuTLS/2.8.5 zlib/1.2.3
>> Host: evernote.com
>> Accept: */*
>>
> * HTTP 1.0, assume close after body
> < HTTP/1.0 502 Bad Gateway
> < Server: squid/3.0.STABLE19
> < Mime-Version: 1.0
> < Date: Sun, 14 Mar 2010 08:10:06 GMT
> < Content-Type: text/html
> < Content-Length: 1687
> < X-Squid-Error: ERR_INVALID_RESP 0
> < X-Cache: MISS from none
> < X-Cache-Lookup: MISS from none:3128
> < Via: 1.0 none (squid/3.0.STABLE19)
> < Proxy-Connection: close
>
> Messages from access.log:
> 1268555151.842 137 XX.XX.XX.XX TCP_MISS/502 2562 GET
> http://evernote.com/favicon.ico - DIRECT/205.234.25.136 text/html
>
>
> Can anyone give me a hint, how to avoid this? Thank you!

There is something wrong with the reply being sent back to Squid from
the server. Look in your squid cache.log to see what is wrong with that
reply.
You may need to configure "debug_options 58,6 " to see what Squid is
getting.

Amos

-- 
Please be using
   Current Stable Squid 2.7.STABLE8 or 3.0.STABLE25
   Current Beta Squid 3.1.0.18