l***y
发帖数: 791 | 1 without explaining the proxy server, a caching proxy server caches the pages
that's visited through it, and the next time user visit such pages through
the same proxy, it won't forward http request to the webpage's server, but
return the cached page right away.
caching proxy have better performance but has its disadvantages.
normally there is a timeout or other kindof limit so the cached page
evantually
expire. |
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