====== Ubuntu - Bind - Configure Bind9 - Caching Nameserver ======

The default configuration acts as a caching server.

Simply uncomment and edit **/etc/bind/named.conf.options** to set the IP addresses of the DNS servers you want to use; such as your ISP’s DNS servers:

<code bash>
forwarders {
    1.2.3.4;
    5.6.7.8;
};
</code>

<WRAP info>
**NOTE:**  Replace 1.2.3.4 and 5.6.7.8 with the IP Addresses of actual nameservers.
</WRAP>


To enable the new configuration, restart the DNS server:

<code bash>
sudo systemctl restart bind9.service
</code>

----

See dig for information on testing a caching DNS server.