Cisco Cisco Content Security Management Appliance M1070 Mode D'Emploi

14-27

AsyncOS 8.1 for Cisco Content Security Management User Guide

Chapter 14 Common Administrative Tasks

•

(For deployments with associated Web Security appliances) Configure your system to support the
latest Configuration Master. See

Overview of Setting Up Configuration Masters, page 9-2

•

Consider saving your configuration. For more information, see

Saving and Importing Configuration

Settings, page 14-43

About Reverting to an Earlier Version of AsyncOS

You can revert to an to a previous qualified version of AsyncOS for emergency uses.

You can also revert to the currently running build if you want to clear all data on the appliance and start
with a new, clean configuration.

Important Note About Reversion Impact

Using the

revert

command on a Cisco Content Security appliance is a very destructive action. This

command permanently destroys all configuration logs and existing data. In addition, it disrupts mail
handling until the appliance is reconfigured. Because this command destroys all configuration, it is
highly recommended that you have physical local access to the Cisco Content Security appliance when
you want to issue the

revert

command.

Warning

You must have a configuration file for the version you want to revert to. Configuration files are not
backwards-compatible.

Reverting AsyncOS

Before You Begin

If Centralized Policy, Virus, and Outbreak quarantines are enabled on your Email Security appliances,
disable centralization so that messages are quarantined locally on those appliances.

Procedure

Step 1

Ensure that you have the configuration file for the version you want to revert to. Configuration files are
not backwards-compatible.

Step 2

Save a backup copy of the current configuration of your appliance (with passwords unmasked) on
another machine. To do this, you can email the file to yourself or FTP the file. A simple way to do this
is to run the

mailconfig

CLI command, which emails the current configuration file on your appliance

to the specified email address.

Note

This is not the configuration file you will load after reverting.

Step 3

If you use the Safelist/Blocklist feature, export the Safelist/Blocklist database to another machine.

Step 4

Suspend any listeners on your Email Security appliances.

Step 5

Wait for the mail queue to empty.

Step 6