Internet content on RH8

[Jason Dale]

Hi all,   1) Does anyone know where Red Hat 8 keeps all of it's temporary files,     cookies, cache files that show where you have been surfing on the net?     much like the content cleanup programs that you get for Windows?   2) Where can I find a filtering service to prevent 'objectionable'      websites from being accessed in situations where a network of people      access the internet via your Red hat Linux server? by 'objectionable'      I mean any content including violence, pornography, etc.   Regards, Jason