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Google DNS Public
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Topic: Google DNS Public (Read 18968 times)
ramonrocha
Jr. Member
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Posts: 2
Google DNS Public
«
on:
Friday 28 February 2014, 07:03:20 am »
Dear ,
How do I do to block Google DNS plublic?
8.8.8.8
8.8.4.4
4.4.4.4
some users are changing the dns to google and bypass HTTP proxy transparent.
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dda
Sr. Member
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Posts: 227
Re: Google DNS Public
«
Reply #1 on:
Friday 28 February 2014, 09:46:24 am »
You need to fix your windows security first of all. Then block 80 and 443 in the firewall to force them through the proxy.
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ramonrocha
Jr. Member
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Posts: 2
Re: Google DNS Public
«
Reply #2 on:
Saturday 01 March 2014, 02:41:00 am »
Please, send more information about firewall rules to block 80 and 443 ports.
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dda
Sr. Member
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Posts: 227
Re: Google DNS Public
«
Reply #3 on:
Sunday 02 March 2014, 12:55:02 am »
Ordinary users should not be able to change DNS. They are set as local Administrators and should not be. In the firewall section go to outgoing firewall and take the ticks off ports 80 and 443. Make sure Endian is the default gateway.
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dda
Sr. Member
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Posts: 227
Re: Google DNS Public
«
Reply #4 on:
Sunday 02 March 2014, 03:24:51 am »
...and put the proxy settings into internet explorer proxy settings.
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kieronrob
Full Member
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Posts: 57
Re: Google DNS Public
«
Reply #5 on:
Wednesday 05 March 2014, 01:10:07 am »
You can also create outgoing firewall rules that block 8.8.8.8 and 8.8.4.4 thus preventing the users from using the google DNS servers.
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mmiat
Sr. Member
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Posts: 236
Re: Google DNS Public
«
Reply #6 on:
Friday 07 March 2014, 11:27:45 pm »
block ANY dns request, port 53 tcp/udp, so they can use only internal dns
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