Cisco Cisco Email Security Appliance C680 Release Notes
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Release Notes for Cisco AsyncOS 8.5.7 for Email
Installation and Upgrade Notes
Upgrading to AsyncOS 8.5.7-043 for Cisco Email Security Appliances (General
Deployment—Refresh)
Deployment—Refresh)
You can upgrade to release 8.5.7-043 from the following versions:
•
8-0-1-023
•
8-5-6-106
•
8-5-7-042
To ensure a successful upgrade, you must complete some steps before you start the upgrade process. For
details on these prerequisites, see
details on these prerequisites, see
.
Upgrading to AsyncOS 8.5.7-042 for Cisco Email Security Appliances (General
Deployment)
Deployment)
You can upgrade to release 8.5.7-042 from the following versions:
•
8-0-1-023
•
8-5-6-092
•
8-5-6-106
•
8-5-6-116
To ensure a successful upgrade, you must complete some steps before you start the upgrade process. For
details on these prerequisites, see
details on these prerequisites, see
.
Installation and Upgrade Notes
Read through and consider the installation and upgrade impacts listed in this section.
When you upgrade AsyncOS for Email from the web interface or Command Line Interface (CLI), the
configuration is saved to file in the /configuration/upgrade directory. You can access the upgrade
directory using an FTP client. Each configuration file name is appended with the version number, and
passwords in the configuration file are masked so they are not human readable.
configuration is saved to file in the /configuration/upgrade directory. You can access the upgrade
directory using an FTP client. Each configuration file name is appended with the version number, and
passwords in the configuration file are masked so they are not human readable.
You must be logged in as the admin to upgrade. Also, you must reboot the appliance after upgrading.
Change in URL Reputation Feature Servers
Important! The server pool used by the URL Reputation feature servers has changed. As a result, when
you enable the URL Filtering feature, you may observe one of the following symptoms:
you enable the URL Filtering feature, you may observe one of the following symptoms:
•
Work queue on your appliance backs up
•
A large number of 'Request already expired' entries in the web_client logs
•
Alerts indicating that your appliance is unable to connect to the Cisco Web Security Service
To fix this issue, you must reduce the number of URLs sent for verification at the same time.