On Thu, 2010-06-17 at 12:11 +0530, Parshwa Murdia wrote: > Installed squid only for the desktop single PC and is to be used for > the single PC only. The main reasons to implement it is: > > 1. Speed improvement (or bandwidth improvement) I can't see you managing that for a single PC. Caching proxies help with speed and bandwidth on a LAN where several browsers may look at the same resource. Then everyone *after* the first person will get the cached copy. But when only one person uses a computer, their browser is the only thing that needs to download web data, and going through a proxy will actually slow things down (the proxy has to get it, then you have to get it from the proxy). Granted that's a very small slowdown, but there's certainly no speed up. It takes the proxy just as long to get it as the browser would have. But, after years of playing with proxies, I've come to the conclusion that they don't help much even with multiple LAN users. Most people don't view the same data, lots of data isn't cacheable, or broken websites turn what would be cacheable data into something that's uncacheable. About the only times it helped were when one user passes around a "hey look at this page" message, and people were looking at exactly the same page. And software updates; the first update run would cache the files, and the following update runs would re-use the cached files. > 2. For security purpose so that intruders or transpassers cannot keep > an eye. A proxy isn't going to stop someone seeing what you browse, if they can do that. They'll still be able to see what's being browsed through the proxy. On the other hand, for a LAN with multiple users, a caching proxy can actually be a security problem, if users access things that aren't secured (when they should be), and the proxy caches it. On the other hand, you can use a filtering proxy that simply doesn't fetch some data (e.g. when a page asks for an advert, or known tracking images, etc., the proxy can be filtered so it doesn't allow it). If that's what you mean, then privoxy is one thing that works that way. -- [tim@localhost ~]$ uname -r 2.6.27.25-78.2.56.fc9.i686 Don't send private replies to my address, the mailbox is ignored. I read messages from the public lists. -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines
