Planning summary for NetCache takeover configuration

Which IP address of the network interface on this NetCache appliance is to be dedicated to receive heartbeat messages from the takeover partner.

• Do not send proxy traffic to this interface.
• This interface must be on the same LAN as the takeover interface of this NetCache appliance.
• You cannot configure the Listen Addresses option on the Setup tab > Network > General page and takeover.

Which IP address of the network interface on the other NetCache appliance is to be dedicated to receive heartbeat messages from this NetCache appliance.

Whether to configure a single mode virtual interface (VIF) with NetCache takeover.

Configuring a single mode VIF (virtual interface) with NetCache takeover enables you to achieve a higher fault tolerance than can be achieved with NetCache takeover alone.

For an illustration of the use of a single mode VIF with takeover, see the Deployment Guide. For more information about virtual interfaces, see Chapter 2, NetCache Network Interfaces.

Whether to enable protocol and user authentication.

If you enable protocol and user authentication, do one of the following so that takeover works correctly:

• Configure the same user names and passwords on both partners.
• Run an LDAP server or RADIUS server and have both NetCache appliances point to it.

Whether to set access controls.

Users are allowed or denied access to NetCache services and content based on which NetCache services they request. You must configure access control parameters the same on both takeover partners. Otherwise, if a takeover occurs, some users might not be able to access content that they could access before the takeover.

Whether to set URL restrictions.

Users are allowed or denied access to content based on which NetCache appliance services they request. You must configure URL restrictions identically on both takeover partners. Otherwise, if a takeover occurs, users might not be able to access content that they could access before the takeover occurred. Conversely, users might be able to access content that they were restricted from accessing.