Cisco Cisco Web Security Appliance S360 User Guide

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AsyncOS 9.2 for Cisco Web Security Appliances User Guide

Chapter 3 Connect, Install, and Configure

Redirect Hostname and System Hostname

•

The command line interface (CLI)

•

System alerts

•

When forming the machine NetBIOS name when the Web Security appliance joins an Active
Directory domain.

The system hostname does not correspond directly to interface hostnames and is not used by clients to
connect to the appliance.

Changing the Redirect Hostname

Step 1

In the web user interface, navigate to Network>Authentication.

Step 2

Click Edit Global Settings.

Step 3

Enter a new value for Redirect Hostname.

Changing the System Hostname

Step 1

Access the CLI.

Step 2

Use the

sethostname

command to change the name of the Web Security appliance:

example.com> sethostname

example.com> hostname.com

example.com> commit

...

hostname.com>

Step 3

Commit your changes.

Configuring SMTP Relay Host Settings

AsyncOS periodically sends system-generated email messages, such as notifications, alerts, and Cisco
Customer Support requests. By default, AsyncOS uses information listed in the MX record on your
domain to send email. However, if the appliance cannot directly reach the mail servers listed in the MX
record, you must configure at least one SMTP relay host on the appliance.

Note

If the Web Security appliance cannot communicate with the mail servers listed in the MX record or
any of the configured SMTP relay hosts, it cannot send email messages and it writes a message in the
log files.

You can configure one or more SMTP relay hosts. When you configure multiple SMTP relay hosts,
AsyncOS uses the topmost available SMTP relay host. If an SMTP relay host is unavailable, it tries to
use the one below it in the list.