I would like to know if this is possible to keep the network during a shutdown as describe and explained below for a Linux system.

How could we do that?

This will be used in a procedure to shutdown the UPS and the system after a Power Failure has been detected. Any experience with that will be of high interest to me.


You may need to take steps to ensure networking stays active during your OS’s shutdown sequence in order for the PCNET driver to power off the UPS (the so-called ”killpower” operation). On a Linux distro, you can use
commands such as...

chkconfig --level 0 network on
chkconfig --level 0 iptables on

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