Re: Squid not Caching some Objects

From: Edward Henigin <>
Date: Wed, 4 Sep 1996 09:22:38 -0500 (CDT)

On Tue, 3 Sep 1996, Mario Sergio Fujikawa Ferreira wrote:

> I try to access or through the Squid Proxy Cache.
> The access.log logs all requests to the realaudio and timecast as TCP_MISS (right, they were not in the cache). However, all objects request through the proxy are logged in the access.log as "TCP_MISS 104" and are not cached.
> The log file in the spool cache directory do not records anything about realaudio and timecast objects, yet they are recorded as requested in the access.log file.

(ed) staff1:~$ telnet 80
Connected to
Escape character is '^]'.

HTTP/1.0 200 OK
Server: Netscape-Commerce/1.12
Date: Wednesday, 04-Sep-96 14:07:52 GMT
Expires: Wed, 04 Sep 1996 07:09:32 -0800
Content-type: text/html

Connection closed by foreign host.
(ed) staff1:~$ date
Wed Sep 4 09:07:57 CDT 1996

        It appears as though realaudio wants you to cache (at least their
main homepage) only 1 hour (CDT is -0500 GMT).

        I've just compiled and install 1.0.12 on my system.. I'll see
what happens when I hit

        hrmm... the same thing happens to me. - - [04/Sep/1996:09:11:30 -0500] "GET" TCP_MISS 8181 - - [04/Sep/1996:09:12:20 -0500] "GET" TCP_MISS 8159

        (Note this is *not* the same browser, hitting reload. The first
hit was using MSIE, the second was the Netscape Navigator.)

        I don't see any 'meta' tags in the source that would indicate
an immediate expire, or any kind of no-cache...

        store.log has these entries:
841846290.004 RELEASE 200 0 [ 0s] 0/7914
841846340.506 RELEASE 200 0 [ 0s] 0/7892

        (store.log shows the same times of 0s for all the rest of the
objects that get loaded with that page, like all the gif's and jpg's.)

        hrmm.. if the HTTP/1.0 header shows a 1 hour expire time,
and I don't see anything in the body of the document that would indicate
that the document should not be cached, then how does squid determine
that the document shouldn't be cached? I must be missing something..
Someone smarter than me *educate* me, please! :)

        (btw, after browsing through store.log, it appears that other
objects are being cached normally.)
Received on Wed Sep 04 1996 - 07:24:32 MDT

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