centos7配置kvm

1 配置KVM

1.1 使用yum安装软件

yum install libvirt python-virtinst qemu-kvm virt-viewer tunctl bridge-utils avahi dmidecode qemu-kvm-tools virt-manager qemu-img virt-install net-tools libguestfs-tools -y

1.2 启动服务&&开机启动

systemctl start libvirtd

systemctl enable libvirtd

1.3 配置centos7使用桥接网络

br0示例：

[root@sh-121 ~]# cat /etc/sysconfig/network-scripts/ifcfg-br0

DEVICE=br0

TYPE=Bridge

ONBOOT=yes

BOOTPROTO=static

IPADDR=192.168.4.121

NETWASK=255.255.255.0

GATEWAY=192.168.4.1

DNS1=202.106.0.20

原ip配置文件：

[root@sh-121 ~]# cat /etc/sysconfig/network-scripts/ifcfg-eno1

TYPE=Ethernet

#BOOTPROTO=static

#DEFROUTE=yes

#PEERDNS=yes

PEERROUTES=yes

#IPV4_FAILURE_FATAL=no

#IPV6INIT=yes

#IPV6_AUTOCONF=yes

#IPV6_DEFROUTE=yes

#IPV6_PEERDNS=yes

#IPV6_PEERROUTES=yes

#IPV6_FAILURE_FATAL=no

#IPV6_ADDR_GEN_MODE=stable-privacy

NAME=eno1

#IPADDR=192.168.4.199

#NETMASK=255.255.255.0

#GATEWAY=192.168.4.1

#DNS1=114.114.114.114

#UUID=5e62b2d9-cf5b-4742-b684-3ed6e80af5e1

DEVICE=eno1

ONBOOT=yes

BRIDGE=br0