Question Details:

I want that nobody can access porno from my computer.

Answer

First you can try OpenDNS. It is free and you can see http://www.opendns.com for details.

If you are advanced user, you can also try dansguardian, which is a content filtering internet proxy. Visit http://dansguardian.org/ for details.

For windows users, check also free solution named K9 Web Protection (see http://www.k9webprotection.com )

If you want to pay money for a good service you can try:

- Sentry Parental Controls ( http://www.sentryparentalcontrols.com/ )

- CyberPatrol ( http://www.cyberpatrol.com ),

- NetNanny ( http://www.netnanny.com ),

- ContentProtect ( http://www.contentwatch.com ),

- SafeEyes ( http://www.internetsafety.com/safe-eyes ),

- CyberSitter ( http://www.cybersitter.com ),

- NetDog ( http://www.netdogsoft.com ).

I recommend Sentry Parental Controls.