To generate a Nessus Professional Key using the script, simply run the following command:

python nessuskeygen.py If you prefer a Windows executable, you can download nessuskeygen.exe and click the "Generate Key" button to generate a key.

Start or Stop Nessus Windows Command-Line Operation Start Nessus:

C:\Windows\system32>net start "Tenable Nessus" Stop Nessus:

C:\Windows\system32>net stop "Tenable Nessus" Linux Command-Line Operation RedHat, CentOS, and Oracle Linux Start Nessus:

systemctl start nessusd

Stop Nessus:

systemctl stop nessusd

SUSE Start Nessus:

systemctl start nessusd

Stop Nessus:

systemctl stop nessusd

FreeBSD Start Nessus:

service nessusd start

Stop Nessus:

service nessusd stop

Debian, Kali, and Ubuntu Start Nessus:

systemctl start nessusd

Stop Nessus:

systemctl stop nessusd

Updating the Nessus Key To update the Nessus key, you can use the following commands:

For all operating systems:

nessuscli fix --reset-all Linux

/opt/nessus/sbin/nessuscli fetch --register xxxx-xxxx-xxxx-xxxx

FreeBSD

/usr/local/nessus/sbin/nessuscli fetch --register xxxx-xxxx-xxxx-xxxx

Windows C:\Program Files\Tenable\Nessus>nessuscli.exe fetch --register xxxx-xxxx-xxxx-xxxx macOS

/Library/Nessus/run/sbin/nessuscli fetch --register xxxx-xxxx-xxxx-xxxx

Replace xxxx-xxxx-xxxx-xxxx with your new Nessus Professional Key.

Please note that this script is provided for educational purposes only and should be used responsibly and in compliance with the Nessus licensing terms.