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2.2. Caching Nameserver

The default configuration is setup to act as a caching server. All that is required is simply adding the IP Addresses of your ISP's DNS servers. Simply uncomment and edit the following in /etc/bind/ named.conf.options:

forwarders {

};

1.2.3.4;

5.6.7.8;

Replace 1.2.3.4 and 5.6.7.8 with the IP Adresses of actual nameservers.

Now restart the DNS server, to enable the new configuration. From a terminal prompt:

sudo systemctl restart bind9.service

See Section 3.1.2, “dig” [p. 174] for information on testing a caching DNS server.

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