Another useful idea is running a cron job (as root) every so often on each
machine that opens a socket connection to a port (eg. for www: 80)
If the socket connection returns false, you have a problem. You could then
reboot the service (in this case apache or similar).
I did this to check mysql w
Hi Pete,
You could use PHP's command line execution programs to execute the ping
command, then either check the output or check the return status of
ping, if you do this make sure you pass ping some parameters that will
limit the timeout and retries otherwise your PHP script may hang waiting
for
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