Last updated on JULY 01, 2016
Applies to:Oracle Internet Directory - Version: 22.214.171.124
Information in this document applies to any platform.
Using failover in external authentication is only recommended as a last resort. It depends on the TCP request to the first AD server returning an error, before it can try the second. In most networks the TCP timeout and retries will result in several seconds and sometimes minutes to detect the primary is down. This will impact every bind attempt. The proper and more effective solution is to use a virtual host and have a load balancer configured in front of the AD servers. (Please note that while this solution would work for External Authentication plugin, it does not work with DIP synchronization.)
The primary remote host, as defined in the External Authentication plugin, has gone down and is not accessible on the network.
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