When you make configuration changes and update Access Gateway, Administration Console uses the JCC channel to send the configuration changes to Access Gateway. Figure 33-2 illustrates this flow.
Figure 33-2 Sending Configuration Updates to Access Gateway
JCC sends the configuration changes to Access Gateway Manager (AGM), which writes the Apache configuration to disk. Apache is sent a restart command, which causes Apache to read the new configuration, then Apache validates the configuration.
If the configuration is valid, Apache starts.
If the configuration is invalid, Apache fails to start.
If Apache fails to start after a configuration change, roll back to the previous configuration. Restore a backup if you have one, or use Administration Console to manually remove the modifications that have caused the problem. If this does not solve the problem, try the following: