Virtualization

* kvm으로 vm 만들기

  - sudo apt-get install qemu kvm

  - sudo apt-get install libvirt-bin

  - qemu-img create machine_name.img -f raw 1G

  - kvm -m 512 -cdrom /home/user/ubuntu-10.10-server-amd64.iso -boot d machine_name.img

* Network

/etc/network/interface 

---------------------------------------------------------------------------------- 

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet manual

auto br0
iface br0 inet static
        address 192.168.0.10
        network 192.168.0.0
        netmask 255.255.255.0
        broadcast 192.168.0.255
        gateway 192.168.0.1
        bridge_ports eth0
        bridge_stp off
        bridge_fd 0
        bridge_maxwait 0
---------------------------------------------------------------------------------- 
 

* 실행하기

- sudo /usr/sbin/brctl addbr br0 

   - sudo qemu-system-x86_64 -hda /path/to/hda.img -net nic,macaddr=$macaddress -net tap

    (or kvm -no-acpi -m 512 machine_name.img) 

    :$macaddress = 임의의 MAC 주소

* Redirecting

- qemu-systems-x86_64 –m 400 –hda fedora.img –redir tcp:2222::22 
 

* Bridge STP (Spanning Tree Protocol) Enabling

- brctl show

- brctl stp <bridge-name> on

rsyoung@descartes:~$ brctl show
bridge name bridge id  STP enabled interfaces
br0  8000.2226c7f7ac47 yes  tap1
virbr0  8000.000000000000 yes  
virbr1  8000.000000000000 yes  
rsyoung@descartes:~$   

* tap 생성 

- check  /dev/net

- $ mknod /dev/net/tun c 10 200
   - setup the tap0 interface with an ip address (e.g. 192.168.0.1)

- tap0 interface creation

* $ sudo tunctl
   - ip assign

* $ sudo ifconfig tap0 192.168.100.1 up