block websites

863824

Hi there,
does anyone know how to make an application block specific websites without editing the "hosts" file while the app is running?
Which APIs should I eventually use? I've never done anything like that.
Would be very grateful, if someone helps me.
thanks

796440

This is not something you can do in pure Java.

And note that "block specific websites" is a very vague requirement, open to many varying interpretations.

handat

Normally, you would use a firewall application to do this and I strongly suggest you do that. However, you could enable the security manager for your java application and make sure you remove java.security.AllPermission from the security policy and only add java.net.SocketPermission for the hosts you want to allow connection to. This would only be practical if you only had a few specific hosts you want the application to be able to connect to and deny connections for any other hosts.