Thank you Amos, Suppose that I have to put a WC in front of ONLY ONE HTTP server and both WC and web server are behind a load balancer, so the clients will never see whether traffic comes from a WC or from the server, anyway.
What mode of WC (so transparent or accelerator) will give me the best performance and why ? Or is there no difference with respect to performance ? you mention : "reverse-proxy (or accelerator) - software that performs many of the service duties of a 'true' web-server" What web duties can an accelerator WC do, that a transparent WC cannot do ? Thanks in advance, Mark. --- Amos Jeffries <[EMAIL PROTECTED]> wrote: > Raemaekers Mark wrote: > > For me it is not clear why an accelerator mode WC > is > > faster then a Transparant Mode webcache. > > This is how I understand both modes after googling > for > > about half a day on this topic : > > > > WC IN TRANSPARANT MODE (WCTM), When an http > request > > hits the WCTM for the second time, then the WC > will > > send its cached contents back to the client. > > Since the info is in the cache, the real web > server > > does not have to be contacted by the WCTM. > > > > WC IN ACCELERATOR MODE (WCAM) : when an http > request > > hits the WCAM for the second time,the the WC will > look > > if this request is in its cache and send the > cached > > response of this request back to the client. Since > the > > info is in the cache, the real web server does not > > have to be contaced by the WCAM. > > > > In both cases (from the second request onwards) > the > > real web server is not contacted. > > So, what exactly makes an accelerator mode WC go > > faster then ? > > > > Nothing. Neither name accurately reflects the > operation of the cache. > Whats the confusion? > > proxy - software that sits between a web server and > a web-client with > purpose of resource saving or improving web service > to the clients. > > intercepting proxy - software that performs as a > proxy, but additionally > can handle traffic redirected to it by a FW without > the web-clients > knowledge. Usually typed 'transparent' by those who > confuse > client-hidden with totally-invisible. > > transparent proxy - software that performs all > duties of proxy and > additionally spoofs/hide its IP from both parties > such that neither can > detect its existence. > > reverse-proxy - software that performs many of the > service duties of a > web-server. Redirecting all requests it can't handle > to a separate > 'true' web-server or more authoritative source. > > accelerator - nickname for reverse-proxy. > > > Amos > -- > Please use Squid 2.6STABLE17+ or 3.0STABLE1+ > There are serious security advisories out on all > earlier releases. > ____________________________________________________________________________________ Looking for last minute shopping deals? Find them fast with Yahoo! Search. http://tools.search.yahoo.com/newsearch/category.php?category=shopping