It is very easy to block visiting to a particular site, for example if you want to block visiting www.hotmail.com you can add an dummy ip entry in hosts file which is located in the folder C:\WINDOWS\system32\drivers\etc
127.0.0.1 www.hotmail.com
Windows uses what is called a hosts file to do domain lookups. If any domain name is configured in this file, it takes precendence over any other normal DNS lookup. Whenever your computer contacts 127.0.0.1 it is actually contacting itself (hence the name loopback IP).
Thursday, September 28, 2006
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