Link to

During initial installation, you can install Nessus as a remote scanner linked to If you choose not to link the scanner during initial installation, you can link your Nessus scanner later.

Note: Once you link Nessus to, it remains linked until you unlink it.

Note: does not send plugins to linked Nessus Managers. Nessus Manager pulls plugins directly from Tenable's plugin sites. Therefore, to update plugin sets, Nessus Manager needs access to the internet and Tenable's plugin sites (for more information, see the Which Tenable sites should I allow? community article). If your Nessus Manager does not have internet access, you can manually update its version and plugins offline (for more information, see Manage Nessus Offline).

Before you begin:

  • Configure Nessus as described in Configure Nessus.
  • If the Nessus scanner is or was previously linked to,, or Nessus Manager, you need to unlink the scanner or run the nessuscli fix --reset-all command (for more information, see Fix Commands).

To link Nessus to

  1. On the Welcome to Nessus, select Link Nessus to another Tenable product.

  2. Click Continue.

    The Managed Scanner screen appears.

  3. From the Managed by drop-down box, select

  4. Click Continue.

    The Create a user account screen appears.

  5. Create a Nessus administrator user account, which you use to log in to Nessus:
    1. In the Username box, enter a username.
    2. In the Password box, enter a password for the user account.

      Note: Passwords cannot contain Unicode characters.

  6. Click Submit.

    Nessus finishes the configuration process, which may take several minutes.

  7. Using the administrator user account you created, Sign In to Nessus.

What to do next:

  • Add the Nessus scanner to as described in Add a Nessus Scanner in the User Guide.