Symantec 10521146 Administration Guide - Page 278

278 Advanced configuration Managing node clusters If you want to re-add a node to the topology database after deleting it, you must do one of the following: ■ For a software node: Reinstall it. See the Symantec Network Security Installation Guide for reinstalling a software node. ■ For an appliance node: Unconfigure and then rerun the initial configuration. See the Symantec Network Security 7100 Series Implementation Guide for unconfiguring an appliance node. Note: SuperUsers can delete software and appliance nodes from the cluster. Administrators, StandardUsers, and RestrictedUsers can view them, but cannot delete them. See "User groups reference" on page 319 for more about permissions. Managing an established cluster This section describes the following day-to-day tasks of managing an established cluster: ■ Licensing nodes in a cluster ■ Synchronizing clustered nodes ■ Changing node numbers ■ Changing node passphrases ■ Restarting sensors in a cluster Licensing nodes in a cluster The Network Security console provides an efficient way to license nodes in a cluster. See "Checking and applying licenses" on page 49. Synchronizing clustered nodes Symantec Network Security automatically synchronizes between the master node across all nodes in the cluster. Master nodes accept changes from other master nodes, never from slave nodes. Slave nodes accept changes from any node with a newer database. The master node propagates information across clusters, including the global configuration, topology database, response rule database, usernames and passwords, user-defined signatures, and flow alert rules. Symantec Network