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lsouzasclara
Level 7

Firewall: DNS Blocking

Hello,

Anyone knows how work Firewall: DNS Blocking?

I tried to put facebook to block, but it did´t work.

Regards,

Leonardo

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1 Reply
McAfee Employee

Re: Firewall: DNS Blocking

facebook.com will only block when a browser actually goes to facebook.com.  It will not work for www.facebook.com.

*.facebook.com will block when a browser goes to <anything>.facebook.com, but will not work if you just type in facebook.com.

*facebook.com will work for both <anything>.facebook.com and facebook.com, but could also block other *facebook.com websites (if applicable, e.g., www.mcafeefacebook.com).

DNS Blocking only works if the Windows system performs the DNS lookup itself; it does not work when a browser is set to proxy to a server, since the proxy server would do the DNS resolution.

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