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RE: Squid TCP_MISS/502

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Hello Amos

We have a windows internal DNS server, I used those DNS servers to resolve my IP's

I changed the dns_nameserver to my ISP dns servers, and the problem went away, loaded ads and the complete page.

I tried this morning eary before most of the staff came in to replicate the problem, but to no avail.

I will try again when the office is busy again. Will send you the logs asap.

Regards,

Dawie Pretorius wrote:
> Hello Amos
> 
> The problem was DNS, my apologies for wasting your time.

? how so?

> 
> "Meanwhile can you add debug_options 11,9 to your squid.conf and run a 
> test please. The resulting cache.log file will have a lot of garbage, 
> but amongst that some messages about what headers were received back and 
> what happened in the processing"
> 
> I can still run this for you and send you the output? 

I think yes. I'm intrigued how that came out of a DNS problem.
I'd expect connection or DNs errors to show up.

Amos.

> 
> Again thanks! :D 
> 
> Regards
> Dawie
> 
> 
> 
> 
> Dawie Pretorius wrote:
>> Hello Amos
>>
>> Thanks for coming back to me,
>>
>> I upgraded to squid Beta Squid 3.1.0.15, /var/log/squid/access.log now has this error:
>>
>> 1263975667.799     92 172.16.9.158 TCP_MISS/302 1361 GET http://googleads.g.doubleclick.net/pagead/ads? Xxxxxxxxxxxxxxx DIRECT/72.14.204.154 text/html
> <snip repeats>
> 
> 302 with that content? Thats a not-modified response from the server.
> 
>> Here is the cache.log
>>
> <snip>
> 
> Not even a hint of problems.
> 
>> Here is the page that I get back from the browser:
>>
>> ERROR
>> The requested URL could not be retrieved
>>
>> Invalid Response error was encountered while trying to process the request:
>>
>>     GET /pagead/ads?client=ca-pub-7266757337600734&format=336x280_as&output=html&h=280&w=336&lmt=1199983288&channel=5629109116%2B6771450170%2B2275486144&ad_type=text_image&alternate_ad_url=http%3A%2F%2Fwww.mail-archive.com%2Fblank.png&color_bg=FFFFFF&color_border=FFFFFF&color_link=006792&color_text=000000&color_url=006792&flash=10.0.32&url=http%3A%2F%2Fwww.mail-archive.com%2Fsquid-users%40squid-cache.org%2Fmsg51945.html&dt=1263975312151&correlator=1263975312153&frm=0&ga_vid=866186005.1263975312&ga_sid=1263975312&ga_hid=523487483&ga_fc=0&u_tz=120&u_his=1&u_java=0&u_h=1024&u_w=1280&u_ah=1024&u_aw=1280&u_cd=32&u_nplug=8&u_nmime=24&biw=1280&bih=862&ref=http%3A%2F%2Fwww.google.co.za%2Furl%3Fsa%3Dt%26source%3Dweb%26ct%3Dres%26cd%3D1%26ved%3D0CAcQFjAA%26url%3Dhttp%253A%252F%252Fwww.mail-archive.com%252Fsquid-users%2540squid-cache.org%252Fmsg51945.html%26rct%3Dj%26q%3DTCP_MISS%252F502%2Bsquid%26ei%3DV7tWS7yqK4S9lAeP-dz3Aw%26usg%3DAFQjCNGZUlUd4iFBeTKD1KXThtG3w31cLQ&fu=0&ifi=1&dtd=3
1
> &xpc=WgwVHxdvOD&p=http%3A//www.mail-archive.com HTTP/1.1
>>     Host: googleads.g.doubleclick.net
>>     User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.1.7) Gecko/20091221 Firefox/3.5.7 (.NET CLR 3.5.30729)
>>     Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
>>     Accept-Language: en-gb,en;q=0.5
>>     Accept-Encoding: gzip,deflate
>>     Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
>>     Keep-Alive: 300
>>     Proxy-Connection: keep-alive
>>     Referer: http://www.mail-archive.com/squid-users@xxxxxxxxxxxxxxx/msg51945.html
>>     Cookie: test_cookie=CheckForPermission; id=22ac216e0800009b||t=1263975130|et=730|cs=mr_u8kmr
>>     Proxy-Authorization: NTLM TlRMTVNTUAADAAAAGAAYAIgAAAAYABgAoAAAABAAEABIAAAAHgAeAFgAAAASABIAdgAAAAAAAAC4AAAABYKIogUBKAoAAAAPVABCAEEARgBSAEkAQwBBAGQAYQB3AGkAZQAuAHAAcgBlAHQAbwByAGkAdQBzAEQAQQBXAEkARQBQAC0ATABUACncpJrZCLgCAAAAAAAAAAAAAAAAAAAAAOpZoYZfwwoauJ0u1F2AVKjAm/c35ZRlVw==
>>
>> The HTTP Response message received from the contacted server could not be understood or was otherwise malformed. Please contact the site operator.
>>
>> Your cache administrator may be able to provide you with more details about the exact nature of the problem if needed.
>>
>> Your cache administrator is webmaster.
>>
>> Generated Wed, 20 Jan 2010 08:19:13 GMT by XXXXXXXXXXXXX (squid/3.1.0.15)
>>
>> Is this something in squid causing this? Or is this something on the network?
>  > If you are not getting this errors, then this has to be something on 
> my side?
> 
> I'm not sure at this point.
> There is no indication yet what error Squid thinks exists in the reply.
> 
> Comparing the two error pages it looks like 3.0 was barfing on the 
> Cookie. 3.1 seems to find something else.
> 
> I'm adding some debug to Squid permanently that should help track these 
> down in future.
> 
> Meanwhile can you add debug_options 11,9 to your squid.conf and run a 
> test please. The resulting cache.log file will have a lot of garbage, 
> but amongst that some messages about what headers were received back and 
> what happened in the processing.
> 
> Amos


-- 
Please be using
   Current Stable Squid 2.7.STABLE7 or 3.0.STABLE21
   Current Beta Squid 3.1.0.15
 
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