Distributed
nonce caching enables you to distribute the
cache for a nonce to different servers in a cluster.
Before you begin
Before configuring distributed nonce caching,
configure
cache replication.
About this task
In previous releases of WebSphere® Application
Server, the nonce was cached locally. To use this feature, you must
complete the following actions:
Procedure
- Verify that you created an appropriate domain setting when
you form a cluster.
- Verify that replication domain is properly secured.
The nonce cache is crucial to the integrity of the nonce validation
process. If the nonce cache is compromised, then you cannot trust
the result of the validation process.
- In the administrative
console for the server level, select
the Distribute nonce caching option. You can enable
the option by completing the following steps:
-
Click Security > Web services.
-
Select the Distribute nonce caching option.
- Restart the servers within your cluster.
Results
When you select the Distribute nonce caching option
in the administrative console, the nonce is propagated to other servers
in your environment. However, the nonce might be subject to a one-second
delay in propagation and subject to any network congestion.