Date: Sun, 15 Feb 2004 12:40:14 -0500 From: "JJB" <Barbish3@adelphia.net> To: "freebsd-questions@FreeBSD. ORG" <freebsd-questions@FreeBSD.ORG> Subject: RE: Using dhclient to update zoneedit with my dynamic IP address Message-ID: <MIEPLLIBMLEEABPDBIEGKECOFLAA.Barbish3@adelphia.net> In-Reply-To: <441xowv6ja.fsf@be-well.ilk.org>
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Thanks for the in-sight into the script code.
I could not get the /etc/dhclient-exit-hooks.sh to run at reboot.
After doing some research I found that dhclient-script
was checking for /etc/dhclient-exit-hooks.
Changed /etc/dhclient-exit-hooks.sh to /etc/dhclient-exit-hooks
and it worked.
Thanks again
-----Original Message-----
From: lowell@be-well.ilk.org [mailto:lowell@be-well.ilk.org]On
Behalf Of Lowell Gilbert
Sent: Sunday, February 15, 2004 8:04 AM
To: Barbish3@adelphia.net
Cc: Lowell Gilbert; freebsd-questions@FreeBSD. ORG
Subject: Re: Using dhclient to update zoneedit with my dynamic IP
address
"JJB" <Barbish3@adelphia.net> writes:
> Thanks for this sample, but it exceeds my script coding ability.
> I added some comments to your sample but I may be lost.
>
> #!/bin/sh
>
> updater_prog = /usr/local/bin/noip2 # program to run
> if [ x$reason = xREBOOT ] || \ # is this an reboot
or
> [ x$old_ip_address = x ] || \ # old ip field empty
or
> [ x$old_ip_address != x$new_ip_address ]; then # old not EQ
new then
> if [ -x $updater_prog ]; then # don't know what
this does
That tests whether the program exists and is executable.
> ${updater_prog} -i "$new_ip_address" # exec program
> fi
> fi
>
> For my purposes I think this is what I need.
> This way zoneedit is only updated when ip changes.
> Do I have script correct?
>
> /etc/dhclient-exit-hooks.sh with this content
> #!/bin/sh
> # This script only gets called when dhclient runs
> # (IE: boot and lease expire)
> # Old and new ip address fields are populated by dhclient,
> # which keeps the old used IP address in some config file
> # so it's not lost on reboot and can be read in at boot time to
> # determine if the ip has changed. So with cable or dsl modem
> # that stays powered on while PC is powered off still is
> # using old IP address.
>
> updater_prog = /usr/local/bin/wget....rest of command # my wget
pgm
>
> if [ x$old_ip_address != x$new_ip_address ]; # old not EQ new
> then ${updater_prog} # exec my pgm
> fi
Looks like that should work...
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