Thanks a lot for that. I can only specify proxy-only option on serverB right? Because I am not using cache_peer option on server A which isfacing the internet.If I use proxy-only option on Server B, then Server B just acts asproxy and it will cache only non-duplicate content. Are there anybenifits in using 1st tier and 2nd tier proxys. Please reply. > >> > Thanks a lot for your help once again. If I add proxy-only option on> > the peer_cache line Server B wont cache anything right? Because Server> > A is facing the internet and it will cache everything. Lets say I> > access the website google.com, Server A will cache google.com. Since> > Server A has google.com in the cache Server B wont cache that web> > site. Then why should I enable cache_dir on Server B. I am a bit> > confused here about how the caching works. Please reply.> >>> That's quite right. Running a cache_dir on Server B would be senseless. Guess that's what I get for posting without thinking...>> Either use a cache_dir on both servers without the proxy-only option (with the hope that the two will cache SOME non-duplicate content), or use the proxy-only option and let the cache_dir on Server B sit unused (compile in the "null" storeio in the future).>> Chris>