Thanks all of you for the kind response. I will test your suggestion late because these days I am busy for other tasks. Thanks again.
On Wed, May 8, 2019 at 12:12 AM Bryan Call <[email protected]> wrote: > You can add the header "Cache-Control: only-if-cached" to the client > request using header_rewrite. The client would receive a 504 by default > and you should be able to modify this to a 404 using the header_rewrite > plugin again. > > *Here is an example of a non cacheable response:* > 09:07:36 homer:~$ curl -D - http://127.0.0.1:8080/200.php > HTTP/1.1 200 OK > Date: Tue, 07 May 2019 16:07:46 GMT > Server: ATS/9.0.0 > X-Powered-By: PHP/7.2.17 > Content-Length: 5 > Content-Type: text/html; charset=UTF-8 > Age: 0 > Connection: keep-alive > > test > > 09:07:46 homer:~$ curl -D - -H 'Cache-Control: only-if-cached' > http://127.0.0.1:8080/200.php > HTTP/1.1 504 Not Cached > Date: Tue, 07 May 2019 16:09:55 GMT > Connection: keep-alive > Server: ATS/9.0.0 > Cache-Control: no-store > Content-Type: text/html > Content-Language: en > Content-Length: 340 > > <HTML> > <HEAD> > <TITLE>Not In Cache</TITLE> > </HEAD> > > <BODY BGCOLOR="white" FGCOLOR="black"> > <H1>Not In Cache</H1> > <HR> > > <FONT FACE="Helvetica,Arial"><B> > Description: Your request mandated that the document come from cache, but > the document is not present in cache. As requested, the transaction > is being terminated. > </B></FONT> > <HR> > </BODY> > > *Here is an example of a cacheable response:* > 09:10:17 homer:~$ curl -D - http://127.0.0.1:8080/200_cache.php > HTTP/1.1 200 OK > Date: Tue, 07 May 2019 16:06:48 GMT > Server: ATS/9.0.0 > X-Powered-By: PHP/7.2.17 > Cache-Control: max-age=300 > Last-Modified: Thu, 12 Feb 2009 23:00:00 GMT > Content-Length: 4 > Content-Type: text/html; charset=UTF-8 > Age: 219 > Connection: keep-alive > > xxx > 09:10:27 homer:~$ curl -D - -H 'Cache-Control: only-if-cached' > http://127.0.0.1:8080/200_cache.php > HTTP/1.1 200 OK > Date: Tue, 07 May 2019 16:06:48 GMT > Server: ATS/9.0.0 > X-Powered-By: PHP/7.2.17 > Cache-Control: max-age=300 > Last-Modified: Thu, 12 Feb 2009 23:00:00 GMT > Content-Length: 4 > Content-Type: text/html; charset=UTF-8 > Age: 221 > Connection: keep-alive > > xxx > > -Bryan > > > > On Apr 23, 2019, at 6:01 AM, Guofeng Zhang <[email protected]> wrote: > > Hi, > > I need to provide a way for our machines on a private network to download > software somewhere. This private network has no internet connection. I > think this is can be easily accomplished by using TS as a forward proxy > server on the private network. > > I can fill the TS's cache by running a script on another machine that has > internet connection to download and cache software by a TS, then copy the > TS's cache directory (which is configured by storage.config) to the TS on > the private network. > > I need the TS on the private network to return objects if they are hit, or > return 404 (Not Found) if they are missed, and the TS should not try to > connect to original servers in any case. > > By reading the docs, I cannot know how to configure TS on the private > network. I think I can configure it like: > url_regex=^https?://(www.)?apache.org/dev/ ttl-in-cache=6h > and give ttl-in-cache a very large value. Is it the only configuration to > do it? > > Your help is appreciated. > > Thanks for your help. > > Guofeng > > >
