Date: Mon, 10 Feb 2014 17:46:27 +0100 From: Juergen Nickelsen <ni@w21.org> To: dteske@FreeBSD.org, 'Vladislav Prodan' <universite@ukr.net>, 'Darren Pilgrim' <list_freebsd@bluerosetech.com> Cc: 'Erich Dollansky' <erichsfreebsdlist@alogt.com>, questions@freebsd.org Subject: Re: Restart network without reboot ? Message-ID: <52F90263.5010006@w21.org> In-Reply-To: <0b7f01cf267d$72ac84b0$58058e10$@FreeBSD.org> References: <1391822758.499117562.qad9aups@frv35.fwdcdn.com> <20140208102029.04d2eb10@X220.alogt.com> <1391827303.738906888.k9hzy6eo@frv35.fwdcdn.com> <52F5BF3A.2030500@bluerosetech.com> <1391864386.931739885.x8t44ikc@frv35.fwdcdn.com> <0b7f01cf267d$72ac84b0$58058e10$@FreeBSD.org>
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On 10.02.2014 17:30, dteske@FreeBSD.org wrote:
> $ cat << EOF > /tmp/do_it_now.sh
> #!/bin/sh
> service netif restart
> dhclient em0
> dhclient em1
> EOF
>=20
> Then add a line to your /etc/crontab that will fire in the next 1-2
> minutes...
>=20
> sh -c 'echo "$((($(date +%M)+2)%60)) $(date +%H) * * * root sh
> /tmp/do_it_now.sh" >> /etc/crontab'
>=20
> NB: That's a single command to be entered on a single line
>=20
> Then just wait a minute or two, you'll get kicked out, start a ping, an=
d
> when
> it starts responding on the new IP address (hopefully you know what thi=
s is)
> you can log in on the new address.
>=20
> Of course, the next thing you should do is to edit /etc/crontab to remo=
ve
> the
> entry else the same time tomorrow it will reset your network.
>=20
> 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.
Regards, Juergen.
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