centos openvz

http://wiki.centos.org/HowTos/Virtualization/OpenVZ

http://www.howtoforge.com/installing-and-using-openvz-on-centos-6.0

#list containers (append -a to also list stopped containers)
host$ sudo vzlist

#enter container
host$ sudo vzctl enter <VEID>

#stop container
host$ sudo vzctl stop <VEID>

#start container
host$ sudo vzctl start <VEID>