ns4 is a configuration management tool which allows the automated backup of just about anything, but it was designed for routers and switches. If you are able to log into it through a CLI, you can back it up. Commands are defined within a configuration file, and when they are executed, the output is sent to a series of FTP servers for archiving. As well as archiving configurations, it allows scripts to be run on nodes; this allows configurations to be applied en masse and allows conditional logic so different bits of scripts are run on different nodes. License: Free for non-commercial use Changes: A bug was fixed where you had to acknowledge an ssh key manually when using the null proxy before you could connect to the node through ns4. This stopped the null proxy option from working.

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