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        <title>Install Pi-Hole on Raspberry Pi 4</title>
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            <h1>Install Pi-Hole on Raspberry Pi 4</h1>
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          <h2>Installing Pi-Hole</h2>

<ol>
	<li>Log into the Raspberry Pi</li>
	<li>Run the following commands in a terminal window
	<div class="codeBlock"># update software repositories<br />
	sudo apt update<br />
	# install available software updates<br />
	sudo apt upgrade -y<br />
	# clean up downloaded apt files<br />
	sudo apt clean<br />
	# install pi-hole<br />
	curl -sSL https://install.pi-hole.net | bash</div>
	</li>
	<li>Press Enter until the DNS selection is displayed</li>
	<li>Select a DNS provider and press Enter</li>
	<li>Press Enter through the rest of the Pi-Hole installer, selecting the defaults</li>
	<li>Copy the randomly generated admin password (just in case)</li>
	<li>Press Enter to complete the installation</li>
	<li>Run the following command to change the Pi-Hole admin password
	<div class="codeBlock">sudo pihole -a -p</div>
	</li>
	<li>Enter and confirm the new password</li>
	<li>Open a web browser and navigate to http://localhost/admin to view the pi-hole admin interface</li>
</ol>

<h2>Testing Pi-Hole</h2>

<ol>
	<li>Back in the terminal, run the following commands to use the local pi-hole instance for DNS
	<div class="codeBlock">sudo nano /etc/resolv.conf</div>
	</li>
	<li>Add the following line at the top of the other nameservers
	<p>nameserver 127.0.0.1</p>
	</li>
	<li>Press CTRL+O, Enter, CTRL+X to write the changes to resolv.conf</li>
	<li>Back in the web browser, open a new tab and navigate to a site that contains ads, like https://yahoo.com</li>
	<li>Watch the Pi-Hole interface to see the ads being blocked</li>
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