https://help.ubuntu.com/community/OpenVZ

root@gateN:~# sudo apt-get install linux-openvz vzctl

root@gateN:~# shutdown -r now

root@gateN:~# uname -a

root@gateN:~# cat /etc/sysctl.conf
...
net.ipv4.conf.default.forwarding=1
net.ipv4.conf.default.proxy_arp=1
net.ipv4.conf.eth0.proxy_arp = 1

net.ipv4.ip_forward=1
net.ipv4.conf.all.rp_filter = 1
kernel.sysrq = 1
net.ipv4.conf.default.send_redirects = 1
net.ipv4.conf.all.send_redirects = 0

root@gateN:~# sysctl -p

root@gateN:~# ln -s /var/lib/vz /vz