Get Virtualizor
OpenVZ 7


This guide will help you to install Virtualizor on OpenVZ 7

Installing Softaculous Virtualizor for OpenVZ 7 is very simple.


  • OpenVZ 7 OS (ISO can be downloaded from here )
  • yum
  • Storage to create the VPSs disks
  • Make the installation with ext4 file system, if made with other file system CT creation will not work.

Notes :
* KVM module requires VT enabled from the BIOS.
* OpenVZ 7 MUST be installed before installing Virtualizor.

Partition Scheme

Partition Size Description
/ All the space on the hard disk Root partition containing all Hardware Node operating system files, OS templates, ISOs, Storage for OpenVZ 7 Containers and Storage for OpenVZ 7 VMs
SWAP 4 GB + Paging partition for the Linux operating system(Swap memory is been used by virtual servers if there is shortage of real memory)

Supported storage types


( File )

For OpenVZ

( OpenVZ )


Open a Shell Terminal (e.g. PuTTY) and SSH to your server. Run the following commands:

wget -N
chmod 0755
./ kernel=openvz7

Please give the email address correctly !

Installation Parameters

  • email - The Admin Email Address
  • kernel - In this case its openvz7
  • noos - If you don't want to download the DomU operating system for the DomU then please add noos=true as a parameter
  • beta - If there is a newer version of Virtualizor available and you would like to test it then please add beta=true as a parameter
  • interface - You can specify the default interface that you want to set. If not provided it will be considered as eth0.
  • license - In case you are installing Virtualizor on internal network you will need to provide the VALID license key. To get internal license key you will need to open a support ticket.

The installation will begin immediately. It may seem that the installation has stopped, if your network speed is slow, but please let it continue. You will see something like this :

You can then visit the Admin Panel to create the Storage and the Virtual Servers and also manage your server.

Note : A log file of the installation process will be created - /root/virtualizor.log


To login to the Softaculous Virtualizor Admin Panel, visit the following URL :


Login with the servers root details.

Admin Panel

After you login, you will see the Admin Panel Dashboard :


Virtualizor uses ports from 4081 - 4085. If there is any firewall restricting this, you will need to allow these ports.

firewall-cmd --zone=public --permanent --add-port=4081-4085/tcp
firewall-cmd --zone=public --permanent --add-port=5900-6000/tcp
firewall-cmd --reload
NOTE: If you are going to use Webuzo templates for VM creation, please allow ports 2002-2005

Trouble Shoot

NOTE : In all cases please remember to disable SElinux. The Virtualizor installer will try to disable it. For KVM make sure that VT is enabled from bios so VPS can be able to started .

Not able to start VM

1 - If you try to start the VM from command line and got the following error :

[root@virtuozzo-30 ~] # prlctl start v1001
Starting the VM...
Failed to start the VM: Operation failed. Failed to execute the operation. (Details: The name org.fedoraproject.FirewallD1 was not provided by any .service files)

Please start the firewalld service by executing the following command :

root> service firewalld start 

2 - If you try to start the VM from command line and got the following error for VNC :

[root@virtuozzo-30 ~] # prlctl start v1001
Starting the VM…
Failed to start the VM: Operation failed. Failed to execute the operation. (Details: internal error: qemu unexpectedly closed the monitor: 2020-03-24T11:54:00.088697Z qemu-kvm: -vnc [::1]:10,websocket=5700,password: Failed to start VNC server: Failed to bind socket: Cannot assign requested address)

If you face above issue while creating VM with VNC enabled, then please try the following steps :

Check if IPV6 is enabled :

# cat /etc/sysctl.conf

It should be as follows :

net.ipv6.conf.all.disable_ipv6 = 0
net.ipv6.conf.default.disable_ipv6 = 0

Once you make the changes and make the content as above, execute the following command to reload the settings:

#sysctl -p

Once done, try to start the VM from virtualizor panel.

Cant open http://IP-Address:4084

Please check if your iptables firewall is running. If it is running as it should because on Openvz 7 it is required. You will need to add the following rule to acceess the panel :

root> firewall-cmd --zone=public --permanent --add-port=4081-4085/tcp
root> /bin/systemctl restart firewalld
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