Use the Export and Import feature to back up individual ISA elements so that they can be ported easily to other ISA servers.
Back up the ISA configuration after making network changes, rule base changes, system policy changes, firewall policy changes, or admin rights changes.
To facilitate restoring a server to its original configuration, it is recommended to back up the firewall configuration immediately after installation.
Automate daily backups of ISA server by using a script that takes advantage of the FPC scripting object.
Back up certificates, used for publishing rules, in addition to ISA configuration.
Incorporate ISA Server 2004 systems into an overall disaster recovery plan.