Novell ACCESS MANAGER 3.1 SP2 - ACCESS GATEWAY GUIDE 2010 Manual page 200

Reverting to a Previous Configuration
If you have updated only one server in the cluster, you can use the following procedure to revert
back to the previous configuration.
1 Remove the server that you have applied the configuration changes from the cluster.
2 Access the Configuration page for the cluster, then click Revert.
The servers in the cluster revert to the last applied configuration.
3 Add the removed server to the cluster.
The server is configured to use the same configuration as the other cluster members.
Modifications Requiring an Update All
When you make the following configuration changes, the Update All option is the only option
available and your site is unavailable while the update occurs:
If you change the Identity Server configuration that is used for authentication (Access
Gateways > Edit > Reverse Proxy/Authentication, then select a different value for the Identity
Server Cluster option).
If you select a different reverse proxy to use for authentication (Access Gateways > Edit >
Reverse Proxy/Authentication, then select a different value for the Reverse Proxy option).
If you modify the protocol or port of the authenticating reverse proxy (Access Gateways > Edit
> Reverse Proxy/Authentication > [Name of Reverse Proxy], then change the SSL options or
the port options).
If you modify the published DNS name of the authentication proxy service (Access Gateways >
Edit > Reverse Proxy/Authentication > [Name of Reverse Proxy] > [Name of First Proxy
Service], then modify the Published DNS Name option).
200 Novell Access Manager 3.1 SP2 Access Gateway Guide