1. Warnings

Important The current guide contains the necessary commands to make a mononode QVD installation, where all the components will installed into the same machine. In a multinode installation will exist additional steps and network configuration may be different.
Important During the process, some packages will be installed and the network configuration will be affected. It is recommended use a testing environment.

2. Requirements

2.1. Database

  • 2 CPU cores

  • 2 GB of RAM

  • PostgreSQL 9.2 or higher

2.2. HKD

3. Pre-installation

root@myserver:~# wget -qO - https://www.theqvd.com/packages/key/public.key | sudo apt-key add -
root@myserver:~# echo "deb http://theqvd.com/packages/ubuntu-xenial QVD-4.0-current main" > /etc/apt/sources.list.d/qvd.list
root@myserver:~# apt-get update

4. HKD installation

root@myserver:~# apt-get install perl-qvd-hkd

5. Database installation and configuration

root@myserver:~# apt-get install postgresql
root@myserver:~# service postgresql start

5.1. Create a user account

root@myserver:~# su - postgres
postgres@myserver:~$ createuser -SDRP qvd
Enter password for new role: passw0rd
Enter it again: passw0rd

5.2. Create the QVD database

postgres@myserver:~$ createdb -O qvd qvddb
postgres@myserver:~$ exit

5.3. Change the PostgreSQL configuration

Edit the file /etc/postgresql/9.2/main/pg_hba.conf and add the following line to the beginning:

host qvddb qvd md5

Note Make sure to replace the default network with the network that your platform uses.

Edit the file /etc/postgresql/9.2/main/postgresql.conf and set the following parameters:

listen_addresses = '*'
default_transaction_isolation = 'serializable'

Restart PostgreSQL.

root@myserver:~# service postgresql restart

5.4. Basic configuration

root@myserver:~# cp -v /usr/lib/qvd/config/sample-node.conf /etc/qvd/node.conf
root@myserver:~# chown root:root /etc/qvd/node.conf
root@myserver:~# chmod 0640 /etc/qvd/node.conf

Edit the file /etc/qvd/node.conf and modify/add the following entries:


5.5. QVD tables population

# /usr/lib/qvd/bin/qvd-deploy-db.pl

6. Administration tools installation

6.1. SSL Configuration

Note If you already have a certificate signed by a third party, you can skip the auto signed certificate creation and use your signed certificate instead.
Auto signed certificate creation
# apt-get install openssl
# mkdir /etc/qvd/certs
# cd /etc/qvd/certs

Generate a private key.

# openssl genrsa 2048 > key.pem

Create an auto signed certificate.

# openssl req -new -x509 -nodes -sha256 -days 3650 -key key.pem > cert.pem
Note OpenSSL will prompt you to enter the various fields that it requires for the certificate. In the field Common Name you must insert the fully qualified domain name of the host that will be running your QVD node.

6.2. API

root@myserver:~# apt-get install perl-qvd-api

Create the file /etc/qvd/api.conf with the following content:


To execute either the CLI or the WAT we must start the API.

service qvd-api start

6.3. CLI

root@myserver:~# apt-get install perl-qvd-admin4

Create the file /etc/qvd/qa.conf with the following content:

qa.url = https://localhost:443/
qa.tenant = *
qa.login = superadmin
qa.password = superadmin
qa.format = TABLE
qa.insecure = 1
Caution This is just a testing installation guide. Never for be using in production environment. The parameter qa.insecure must be replaced by the parameter qa.ca with your Authority certification path.

6.4. WAT

# apt-get install qvd-wat
Executing the WAT

Visit https://localhost:443


  • username: superadmin@*

  • password: superadmin

7. Basic and indispensable configuration

7.1. Network configuration

7.1.1. Set dnsmasq to be controlled by QVD

# dpkg -s dnsmasq

If it is not installed:

# apt-get install dnsmasq
# service dnsmasq stop
# sed -i s/ENABLED=1/ENABLED=0/ /etc/default/dnsmasq

7.1.2. Configure IP forwarding

Edit the file /etc/sysctl.conf and uncomment the line:



# sysctl -p

7.1.3. Configure a network bridge

Edit the file /etc/network/interfaces and add the following lines:

auto qvdnet0
iface qvdnet0 inet static
  pre-up brctl addbr qvdnet0
  pre-up iptables -t nat -A POSTROUTING -o eth0 -j SNAT --to-source
  pre-up iptables -t nat -A PREROUTING -d -p tcp --dport 8443 -j DNAT --to-destination
  post-down brctl delbr qvdnet0
Note You will need to change the IP address to the IP address of the network interface that you intend your clients to connect to.
Note The range should be unique within your infrastructure.

Bring up the network bridge

# ifup qvdnet0

7.1.4. Configura QVD for your network

# qa4 config set tenant_id=-1,key=vm.network.ip.start,value=
# qa4 config set tenant_id=-1,key=vm.network.netmask,value=24
# qa4 config set tenant_id=-1,key=vm.network.gateway,value=
# qa4 config set tenant_id=-1,key=vm.network.dns_server,value=
# qa4 config set tenant_id=-1,key=vm.network.bridge,value=qvdnet0

7.2. Configure QVD to use the SSL certificates

# qa4 config ssl key=/etc/qvd/certs/key.pem, cert=/etc/qvd/certs/cert.pem
# openssl version -d

The previous command may return the following response by default:

OPENSSLDIR: "/usr/lib/ssl"
Note If other directory is returned, use it instead /usr/lib/ssl for the following steps.

The trusted certificates are stored in /usr/lib/ssl/certs.

# trusted_ssl_path=/usr/lib/ssl/certs
# cert_path=/etc/qvd/certs/cert.pem
# cert_name=`openssl x509 -noout -hash -in $cert_path`.0
# cp $cert_path $trusted_ssl_path/QVD-L7R-cert.pem
# ln -s $trusted_ssl_path/QVD-L7R-cert.pem $trusted_ssl_path/$cert_name

7.3. Configure HKD Node

Edit file /etc/qvd/node.conf with this contents:

nodename = node1
database.host = localhost
database.name = qvddb
database.user = qvd
database.password = passw0rd

Now, add the node to the solution by running:

# qa4 host new name=node1,address=

And start HKD service:

# systemctl start qvd-hkd

8. And now, what?

Should you have any issue, please check the full QVD installation guide.

If you have already done all the steps of this guide, congratulations, you already have a solution QVD installed. Now you should:

  • Configure your fist OSF

  • Install your first image

  • Add your first user

  • Add a VM for your user

We recommend to you to continue with the WAT guide to do these steps.

Once finished, you will only have to:

  • Connect and try the solution

Check the quick guide to install the QVD client in your system.

If you have any question or need additional support, visit our website at http://theqvd.com/ or contact with us at info@theqvd.com.