Nessus Offline Activation License Already In Use _top_ 【2024】

Since a Nessus license is tied to a specific host's hardware (via a challenge code), you must release it from the old host first. to your account on the Tenable Community portal Navigate to My Products in the upper right corner. Select your Nessus Professional product and click Manage Product Reset Product Activation

Open the terminal (Linux) or command prompt (Windows) on your . Navigate to the Nessus directory and run: nessuscli fetch --challenge Use code with caution. This command will produce a Challenge Code and a URL . Step 2: Get License File ( nessus.license )

Contents

Additionally, confirm you're using the correct activation code for your Nessus version. A Professional license cannot activate an Essentials installation, and vice versa.

With your license reset on the portal and a fresh challenge string in hand, you can now complete the offline activation without errors. nessus offline activation license already in use

If deactivation is impossible (e.g., support is slow and the old server is gone), you can attempt to force Tenable to accept the new hardware using the --set-offline parameter.

Reinstalling Nessus on the same machine without first resetting the license leaves the old footprint active on Tenable’s servers. Since a Nessus license is tied to a

Run systemctl restart nessusd or service nessusd restart . Preventing the Error in the Future

Open your terminal and run: /opt/nessus/sbin/nessuscli fetch --challenge Use code with caution. Navigate to the Nessus directory and run: nessuscli