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Special Forums IP Networking How to block domains that match a keyword? Post 303010099 by bakunin on Tuesday 26th of December 2017 05:38:58 PM
Old 12-26-2017
Quote:
Originally Posted by milhan
For example, if you want to block example.com you add the following lines in your /etc/hosts file:
What you need is a firewall, like the one Scrutinizer has suggested.

Notice that the way you describe you do NOT "block" any domain, you just make sure that the name associated with the domain cannot be reliably translated into an IP-address any more. This is more like painting over a certain name in the telephone book with a black marker: you cannot look up the name and its associated number any more, but everybody who knows the telephone number (or has other means to find it out) could still call it.

I hope this helps.

bakunin
 

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RESOLV.CONF(5)							File Formats Manual						    RESOLV.CONF(5)

NAME
resolv.conf - Domain Name System resolver configuration SYNOPSIS
/etc/resolv.conf DESCRIPTION
The /etc/resolv.conf is used to configure how the host will use the Domain Name System to resolve hostnames to IP addresses. It may con- tain these two lines: nameserver IP-address domain domain-name The nameserver entry tells the IP address of the host to use for DNS queries. If it is set to 127.0.0.1 (which is the default) then the local name daemon is used that may use the /etc/hosts database to translate host names. You normally only need a nameserver entry if the name server is at the other side of a router. The default nonamed name server can't look beyond the local network. The domain entry tells the default domain to use for unqualified hostnames. This entry is usually not given in which case the domain of the local host is used. The long version of this story can be found in resolver(5). FILES
/etc/resolv.conf DNS resolver configuration file. SEE ALSO
resolver(5), hosts(5), nonamed(8), boot(8). AUTHOR
Kees J. Bot (kjb@cs.vu.nl) RESOLV.CONF(5)
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