Before You Install

Note: A basic understanding of Linux is assumed throughout the installation, upgrade, and removal processes.

Understand and Director Licenses

Confirm your licenses are valid for your Director deployment. Director does not support an unlicensed demo mode.

For more information, see License Requirements.

Plan Your Director Deployment Version

You must run the same version of on your entire Director deployment, including Director and all managed instances that you connect to Director. Director cannot communicate with managed instances that are running a different version of

If you have already installed and configured the instances you plan to manage with Director, do one of the following:

  • Download and install the same version of Director that you are already running on your instances.

  • Plan to upgrade your managed instances to the same version as your Director.

For more information about managing instances with Director, see Director Deployments.

Disable Default Web Servers Director provides its own Apache web server listening on port 443. If the installation target already has another web server or other service listening on port 443, you must disable that service on that port or configure Director to use a different port after installation.

Identify which services, if any, are listening on port 443 by running the following command:

# ss -pan | grep ':443 '

If there are any services listening on port 443, you must either disable or run them on a different port.

Modify Security Settings Director supports disabled, permissive, and enforcing mode Security-Enhanced Linux (SELinux) policy configurations. For more information, see SELinux Requirements.

Perform Log File Rotation

The installation does not include a log rotate utility; however, the native Linux logrotate tool is supported post-installation. In most Red Hat environments, logrotate is installed by default. The following logs are rotated if the logrotate utility is installed:

  • All files in /opt/sc/support/logs matching *log

  • /opt/sc/admin/logs/sc-error.log

During an install/upgrade, the installer drops a file named SecurityCenter into /etc/logrotate.d/ that contains log rotate rules for the files mentioned above.

Log files are rotated on a monthly basis. This file is owned by root/root.

Allow Tenable Sites

To allow Director to communicate with Tenable servers for product updates and plugin updates, Tenable recommends adding Tenable sites to an allow list at the perimeter firewall. For more information, see the knowledge base article.