Virtual Private Server
Virtuozzo VPS Glossary
VPS Hosting has many terms that we need to understand such as follows :
UBC : User Beancounter
It basically manages container memory and resources.
VENET :
It is a virtual networking device or basically a gateway from container to external network.
VzCC : Virtuozzo Control Center mainly defines Infrastructure manager.
VzFC : Virtuozzo File System mainly aims to mount container areas. Symlinks are found in the VPS.
Virtuozzo Private Server License File : License file should be load on the virtuozzo container softwares. These licenses are uniquely assigned by Parrallels.
Parallels Agent Protocol : It is a XML-based protocol utilized to manage and monitor hardware node.
Virtuozzo VPS Server Partition on Hardware Node
Virtuozzo VPS Server Partition on VPS Server Node :
/ - 10 -12 Gb
Root Partition which mainly contains all hardware node operating system and Virtuozzo Containers Software files.
SWAP - Twice the RAM
/vz - This partition for Virtuozzo Templates and Container Database.
All the remaining disk space
We need to make sure the partitions are made correctly in order for the Virtuozzo and it’s VPS Hosting Supported to function appropriately.
OS System-level Virtualization on a VPS
OS System-level Virtualization mainly defines virtualizing a physical server at the operating system whcic enables multiple isolated and secured virtualized servers to run on a single physical server.
The New environment share the same OS as the main system. Some of the examples are Linux-VServer, Virtuozzo for Linux VPS Hosting or Windows VPS, openVZ, Solaris Containers and FreeBSD Jails.
Virtuozzo is known to be one of the best virtualization software for hosting a Virtual Private Server
Emulator In relation to a Virtual Private Server
Emulator basically defines operation of the secondary system or device which enacts the same way as the first system or device. It aims to immitate the same characteristics as the primary system or device. VPS environment is designed and operates as a emulator. Their architecture are more or less the same.
TUN/TAP ( VPN Module ) on openVZ VPS
openVZ supports Tun/TAP in a container through kernel TUN/TAP module. In order to allow for e.g. #9, following is the procedure :
Please make sure you have tun module already on the main hardware node :
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lsmod | grep tun
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In case it is not there, you may command the following :
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modprobe tun
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Or rather you may also add it to /etc/modules.conf in order to load next time you reboot.
Therefter, in order to allow Access to TUN/TAP :
vzctl set 9 –devices c:10:200:rw –save
vzctl set 9 –capability net_admin:on –save
Then, you may create a character device file within the container :
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vzctl exec 9 mkdir -p /dev/net
vzctl exec 9 mknod /dev/net/tun c 10 200
vzctl exec 9 chmod 600 /dev/net/tun
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You have now enabled TUN/TAP on your VPS Hosting package.