<li value="3">Start the virtualization service: <b><code><span style="color:#3366CC;font-size:1.2em;">service libvirtd start</span></code></b></li>

<li>The firewall configuration is altered by the addition of the virtualization software. Restart the firewall so that these changes become active: <b><code><span style="color:#3366CC;font-size:1.2em;">service iptables restart</span></code></b></li>

|- valign="top"

|colspan="2"|{{Admon/important|Run virt-manager as a regular user, not as root|Otherwise all your virtual machines will be owned by root and you won't be able to use them as a regular user.}}