Archived from groups: microsoft.public.windowsxp.newusers (
More info?)
"Ken Blake" <kblake@this.is.an.invalid.domain> wrote in message
news:eAwyH6zqFHA.3444@TK2MSFTNGP12.phx.gbl...
> Sam wrote:
>
> > Could anyone explain to me what a hosts file is, please?
>
>
> Most people think that the URL, such as http://www.microsoft.com, is the
> address of a web site, but it actually isn't. The real address is an IP
> address, four three-digit numbers separated by dots, in a form like
> 123.456.321.443. For each URL, there's a corresponding IP address. We use
> the URL instead of the real IP address because it's easier to remember.
>
> When you enter a URL, behind the scenes your browser goes to a DNS (Domain
> Name System) server (usually one supplied by your ISP) to look up and find
> the corresponding IP address for the URL you entered. It then gets the
web
> page for the IP address it found.
>
> That process takes time--not a lot, but some. One way to speed up that
> process is to store on your computer a table of URLs and corresponding IP
> address for sites you frequently visit.
>
> That's the hosts file--sort of a local DNS server customized for you. The
> browser searches the hosts file first and only goes to the dns server if
> there's no entry in the hosts file.
>
> The other use of the hosts file is to render some URLs inaccessible by
> giving them the IP address 127.0.0.1, the localhost. It's a way to block
> access to porn sites, dangerous sites, etc.
>
> --
> Ken Blake
> Please Reply to the Newsgroup
>
>
Thank you very, very much, Ken - much appreciated. Now I understand more.
Just one other query, please - are these listed as 'SVCHost.exe" in the task
manager? I see I have five instances of this running at the moment.
Kind regards,
Sam