Rexec comes to mind, but there are security issues related to it's use.
There are open source packages that can be configured fairly easily to do this. Big Brother or it's open source follow on 'Hobbit' is my personal favorite. Nagios is another one. The both provide easy to read web pages to check on the status of things, also pager and email notification is available.
Peter E. Abresch Jr. - at Pepco wrote:
We are writing a REXX exec to run under z/VM to verify the status of our Linux guests. The purpose of this script is to provide an easy mechanism for our operators to verify the health of the Linux guests. Is there a mechanism from z/VM to issue Linux commands to a Linux guest and capturing the output? I know we can go from Linux and issue z/VM commands. Thanks.
Peter
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