Upgrade Nessus on Linux
Required user role when using Tenable Nessus Manager: System Administrator
Download Nessus
From the Tenable Downloads Page, download the latest, full-license version of Nessus.
Tip: If you are upgrading an offline instance of Tenable Nessus, download the package on an online system and transfer it to the offline instance using your organization's preferred method.
Use Commands to Upgrade Nessus
From a command prompt, run the Nessus upgrade command.
Note: Nessus automatically stops nessusd when you run the upgrade command.

# yum upgrade Nessus-<version number and OS>.rpm

# dnf upgrade Nessus-<version number and OS>.rpm

# zypper in Nessus-<version number and OS>.rpm

# dpkg -i Nessus-<version number and OS>.deb
Start the Nessus Daemon
From a command prompt, restart the nessusd daemon.

# service nessusd start

# /etc/init.d/nessusd start
This completes the process of upgrading Nessus on a Linux operating system.