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Updating NP-View Server

This section describes how to update the NP-View Server application and the underlying components if the OVF was used for the initial installation.

Updating the NP-View Server Application

To update an existing NP-View Application, the steps are:

  1. Download the latest release Linux Installer Release (not the .OVF) from the Network Perception Portal and copy it onto your NP-view server using SCP (or WinSCP from a Windows client)
  2. Login onto the NP-View server using SSH (or Putty from a Windows client)
  3. Get root permissions using the command: sudo -i
  4. Prior to installing the new version, it is recommended to make a backup of your database (see below)
  5. Execute the new NP-View release file using the command: sh  (where is the name of the new release file downloaded in step 1).
  6. Follow the guided steps of the installer, which will automatically start NP-View once the update is complete.
  7. Connect to the user interface of NP-View using your web browser and check in the bottom-left corner of the home page that the version number matches the new release

Get Version API call

To check the version update your server URL to the following


Backing up the NP-View Server Database

  1. Stop the NP-View Server (you can use the script /opt/np-live/
  2. From the NP-View Server folder (by default: /opt/np-live/, run the command: tar -zcf db_backup_$(date '+%Y_%m_%d').tgz db (this command may take few minutes to complete)
  3. Run the new release installer, which will update the containers and then launch NP-View Server

Updating CentOS 7 and Docker

If the OVF was used for the initial installation, that package included the CentOS 7 operating system and Docker. These applications must be updated separately from the NP-View Server Application using the below instructions. The instructions cover NP-View Servers that have internet access and those that do not have internet access.

CentOS will be EOL June 30, 2024. We recommend customers to transition to Ubuntu. Our new OVF uses Ubuntu and instructions for updating Ubuntu will be coming soon.

Updating when the NP-View server has internet access:

– stop NP-View
cd /opt/np-live/

– run all updates
yum update -y

– reboot server

Updating when the NP-View server does not have internet access:

If NP-View server is installed in an environment that does not have internet access, a separate Centos 7 server with Docker that has internet access is required to create the update package. All commands below are case sensitive.

Network-Perception uses this mirror for CentOS updates and this mirror for Docker updates

Centos 7 that is online:

– make sure you are root
sudo su -

– create packages directory
cd /root/
mkdir packages
cd packages

– download all packages
yum list installed | awk {'print $1; }' | tail -n +3 | xargs yumdownloader

– you should see docker included in the output list.

– compress archive (capital -C is important)
tar czf /root/packages.tar.gz *.rpm -C /root/packages/

– Copy packages.tar.gz to the offline server. The user can use the below command to scp:
scp packages.tar.gz root@ipAddress:/root/

Centos 7 that is offline running NP-View:

– make sure you are root
sudo su -
– stop NP-View
cd /opt/np-live/

– create directory and extract the archive
cd /root/
mkdir packages/
mv packages.tar.gz packages/
cd packages/
tar -xf packages.tar.gz

– install all updates:
yum -y localinstall *.rpm

– reboot server

– now everything is up to date on the offline server.

If you get any docker swarm errors:

– make sure you are root
sudo su -

– leave and join swarm cluster
docker swarm leave --force && docker swarm init

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