Cable Forum - View Single Post - Simple view on how proxies work (inc DNS)

danielf · 12-03-2004, 22:39

Cheers for that. I think that makes sense

I have a question though. What is a 'valid copy' of a page. I.e. How does the proxy decide if the page it has cached is recent enough? Do all pages carry a time stamp (last modified date/time), and does the proxy query the requested site for the time stamp of the requested page?

12-03-2004, 22:39	#2
danielf cf.mega poser Join Date: Jun 2003 Posts: 16,687	Re: Simple view on how proxies work (inc DNS) Cheers for that. I think that makes sense I have a question though. What is a 'valid copy' of a page. I.e. How does the proxy decide if the page it has cached is recent enough? Do all pages carry a time stamp (last modified date/time), and does the proxy query the requested site for the time stamp of the requested page? __________________ Remember kids: We are blessed with a listening, caring government.