If you want to update versions 4.0.0 or 4.0.5 to 4.2.1, we kindly urge you to first update to version 4.1.0 and then to version 4.2.1.
Application will not work if update is made after support period has expired. Make sure that your support has not expired before you start updating.
It is not possible to update NetVizura on free trial. If you want to extend trial period for one additional month, please request a new trial license.
Step-by-step guide
Check free space on disk with df -h command. If there is less than 8GB of free space on disk, delete some files to make at least 8GB available space on disk (easiest way is to delete old raw data files in archive which is usually located in /var/lib/netvizura/flow/archive)
Download the update package (assumed filename is netvizura-x.y.z-linux-rpm.tgz) to NetVizura server's /tmp directory x.y.z is NetVizura version number.
Execute cd /tmp
Execute tar -xzf netvizura-x.y.z-linux-rpm.tgz
Execute ./update.sh netvizura-web-x.y.z.war
Refresh your browser (Ctrl + F5)
Check if the update is successful on NetVizura's license page: http://<netvizura_ip>:8080/netvizura/#settings:license
If downloaded from Internet Explorer, the filename would be netvizura-linux-x.y.z-rpm.gz.