Cisco Cisco Email Security Appliance X1050 Guía Del Usuario
Chapter 8 Centralized Management
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Cisco IronPort AsyncOS 7.5 for Email Advanced Configuration Guide
OL-25137-01
Q. Can the Destination Controls function be applied at the cluster level, or is it
local machine level only?
local machine level only?
It may be set at a cluster level; however, the limits are on a per-machine basis.
So if you limit to 50 connections, that is the limit set for each machine in the
cluster.
So if you limit to 50 connections, that is the limit set for each machine in the
cluster.
Planning and Configuration
Q. What can I do to maximize efficiency and minimize problems when setting up
a cluster?
a cluster?
1.
Initial Planning
–
Try to configure as many things as possible at the cluster level.
–
Manage by machines only for the exceptions.
–
If you have multiple data centers, for example, use groups to share traits
that are neither cluster-wide nor necessarily machine-specific.
that are neither cluster-wide nor necessarily machine-specific.
–
Use the same name for Interfaces and Listeners on each of the appliances.
2.
Be aware of restricted commands.
3.
Pay attention to interdependencies among settings.
For example, the
listenerconfig
command (even at the cluster level)
depends on interfaces that only exist at a machine level. If the interface does
not exist at the machine level on all machines in the cluster, that listener will
be disabled.
not exist at the machine level on all machines in the cluster, that listener will
be disabled.
Note that deleting an interface would also affect
listenerconfig
.
4.
Pay attention to your settings!
Remember that previously-configured machines will lose their independent
settings upon joining a cluster. If you want to re-apply some of these
previously configured settings at the machine level, be sure to take note of all
settings before joining the cluster.
settings upon joining a cluster. If you want to re-apply some of these
previously configured settings at the machine level, be sure to take note of all
settings before joining the cluster.
Remember that a “disconnected” machine is still part of the cluster. When it
is reconnected, any changes you made while it was offline will be
synchronized with the rest of the cluster.
is reconnected, any changes you made while it was offline will be
synchronized with the rest of the cluster.