Linux Virtualization Configuration

Internal

• Linux Virtualization

/etc/sysconfig/libvirtd

The configuration file of the libvirtd service.

/etc/sysconfig/libvirt-guests

The configuration file of the libvirt-guests service. Note that the service is not automatically enabled.

Configure Guests to Gracefully Shut Down

ON_SHUTDOWN=shutdown
SHUTDOWN_TIMEOUT=300

Configure Guests to Start at Boot

All guests that were running on shutdown can be configured to automatically start on boot, regardless of their autostart settings:

ON_BOOT=start

Virtual Switch Configuration

NAT IP Masquerading

Shut down the virtual switch before modifying the iptables configuration.

The public IP ranges for forward mode NAT, in order to create a port masquerading range can be set by running:

iptables -j SNAT --to-source [start-ip]-[end-ip]

Organizatorium

• Configuration files https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/Virtualization_Deployment_and_Administration_Guide/sect-Manipulating_the_domain_xml-Devices.html#sect-Devices-Network_interfaces