Re: I need to monitor a dead network

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On Sat, Apr 5, 2025 at 7:04 PM ToddAndMargo via users
<users@xxxxxxxxxxxxxxxxxxxxxxx> wrote:

Hi All,

Fedora 41

I have a customer I set up a Fedora 41 server.

Problem: about once a week, its networking dies. All
network services are dead,  xrdp, ssh, samba, etc..
All of them.  Console logins work fine.

The solution is to call the customer and have him
log in at the console and issue a shutdown.  On
power up, all work again.

What I would like to do, is to set up a cron
job to test the networking (ping firewall)
and restart/correct the network if I find
it down.

Now I do know about
      # systemctl restart systemd-networkd.service

But is that enough?  What do I need to do to
put the network into the same state as after
a fresh reboot?

Many thanks,
-T

On 4/5/25 5:16 PM, Roger Heflin wrote:
> Maybe, maybe not.
>
> Typically I have had to do a stop(instead of a restart) then a
> modprobe -r <networkmodulename> ; sleep 1 ; modprobe
> <networkmodulename> ; then restart.
>
> That works unless the NIC itself has a serious firmware issue and
> locks up and really needs a hardware reset that comes on a complete
> reboot.
>


Thank you!
--
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