Restart network without reboot ?

[dteske at FreeBSD.org]

> -----Original Message-----
> From: Juergen Nickelsen [mailto:ni at w21.org]
> Sent: Monday, February 10, 2014 8:46 AM
> To: dteske at FreeBSD.org; 'Vladislav Prodan'; 'Darren Pilgrim'
> Cc: 'Erich Dollansky'; questions at freebsd.org
> Subject: Re: Restart network without reboot ?
> 
> On 10.02.2014 17:30, dteske at FreeBSD.org wrote:
> > $ cat << EOF > /tmp/do_it_now.sh
> > #!/bin/sh
> > service netif restart
> > dhclient em0
> > dhclient em1
> > EOF
> >
> > Then add a line to your /etc/crontab that will fire in the next 1-2
> > minutes...
> >
> > sh -c 'echo "$((($(date +%M)+2)%60)) $(date +%H) * * * root sh
> > /tmp/do_it_now.sh" >> /etc/crontab'
> >
> > NB: That's a single command to be entered on a single line
> >
> > Then just wait a minute or two, you'll get kicked out, start a ping,
> > and when it starts responding on the new IP address (hopefully you
> > know what this is) you can log in on the new address.
> >
> > Of course, the next thing you should do is to edit /etc/crontab to
> > remove the entry else the same time tomorrow it will reset your
> > network.
> >
> > Lastly, remove the /tmp/do_it_now.sh script.
> 
> Is there any special reason you don't just
> 
>     $ echo 'service netif restart; dhclient em0; dhclient em1' | at now
> 
> , which looks so much easier to me?
> 
> Of course, at(1) drags your whole environment into the job, which may be
> not what you want. I wouldn't see much harm in this case, though.
> 
[Devin Teske] 

Thanks for the tip; I'll try that next time.
-- 
Devin

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