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André,

On 2/19/2010 5:45 AM, André Warnier wrote:
> - Since address 127.0.0.1 is the "local loopback" address on any host, a
> process can only connect to it from the local host, and from nowhere else.

Yes, but things like SSH tunnels can be used to allow a remote client to
perform a shutdown. Any local user on the server can shut down Tomcat if
they know the shutdown "command" (which defaults to "SHUTDOWN") and the
port on which Tomcat is listening.

Many folks choose to disable the SHUTDOWN command entirely and require
that Tomcat be shut down using an OS signal, which can be restricted to
the owner of the Tomcat process (and root, of course).

- -chris
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