User Guide

33-25
AsyncOS 9.1.2 for Cisco Email Security Appliances User Guide
Chapter 33 System Administration
Upgrading AsyncOS
[]>
Configuring the Appliance to Trust Proxy Server Communication
If you are using a non-transparent proxy server, you can add the CA certificate used to sign the proxy
certificate to the appliance. By doing so, the appliance trusts the proxy server communication.
Use the
updateconfig command to configure this option. The following example shows how to
configure this option.
mail.example.com> updateconfig
...
...
...
Choose the operation you want to perform:
- SETUP - Edit update configuration.
- VALIDATE_CERTIFICATES - Validate update server certificates
- TRUSTED_CERTIFICATES - Manage trusted certificates for updates
[]> trusted_certificates
Choose the operation you want to perform:
- ADD - Upload a new trusted certificate for updates.
[]> add
Paste certificates to be trusted for secure updater connections, blank to quit
Trusted Certificate for Updater:
Paste cert in PEM format (end with '.'):
-----BEGIN CERTIFICATE-----
MMIICiDCCAfGgAwIBAgIBATANBgkqhkiG9w0BAQUFADCBgDELMAkGA1UEBhMCSU4x
DDAKBgNVBAgTA0tBUjENM............................................
-----END CERTIFICATE-----
.
Choose the operation you want to perform:
- ADD - Upload a new trusted certificate for updates.
- LIST - List trusted certificates for updates.
- DELETE - Delete a trusted certificate for updates.
[]>
Upgrading AsyncOS
Do This See
Step 1
If you have not yet done so, configure settings that
apply to all update and upgrade downloads, and set
up your network to support and optionally
distribute these downloads.
Setting Up to Obtain Upgrades and Updates,
page 33-18
Step 2
Understand when an upgrade is available and
determine whether to install it.
Notifications of Available Upgrades, page 33-26
Step 3
Perform required and recommended tasks before
each upgrade.
Preparing to Upgrade AsyncOS, page 33-26
Step 4
Perform the upgrade. Downloading and Installing the Upgrade,
page 33-27