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Automation

The process of turning on and off the backup server is easily automated such that if the existing server fails the backup server is activated. Such automation takes two stages. Firstly the status of the service is gauged by attempting to access key services it provides. Secondly in a failure situation scripts to enable the second interface on the backup server and kick of ARP Spoofing are activated. Similarly by accessing the lame server via the second interface it can be ascertained when the backup server can be deactivated by running scripts that deactivate the second interface on the backup server and stopping ARP Spoofing.



Horms
1998-04-13