On Tue, Apr 17, 2007 at 12:35:41PM -0400, Lowell Gilbert wrote: > Roland Smith <[EMAIL PROTECTED]> writes: > > > On Tue, Apr 17, 2007 at 06:02:25PM +0300, Ido Admon wrote: > >> Hello list, > >> I couldn't find any way to execute an arbitrary command upon network > >> interface initialization. My situations is that I have and ethernet card > >> that takes DHCP from a cables provider (not a fixed IP address) and I > >> need to update a DynDNS hostname everytime it does (everytime the IP > >> changes). > >> I couldn't find a way to execute shell commands using the rc system or > >> dhclient, what did I miss? > > > > dhclient-script(8)? Maybe devd(8) will work as well.
Just in case you don't manage to find the appropriate text... You'll need to create (in this instance) an /etc/dhclient-exit-hooks script. An excerpt from mine is below, you'll need to create your own "update_ddns" function to update your DynDNS entry. if test "$reason" = "RENEW" || test "$reason" = "BOUND"; then # The old lease has been renewed or the interface is being re-bound. if test "$old_ip_address" != "$new_ip_address"; then # IP address has changed -- update DDNS entry. update_ddns fi fi Hope it helps. > > devd won't work as well, because the timing is a bit off (even if you > only get new addresses at boot time, which isn't guaranteed. > > dhclient-script already has a capability ("hooks") for running scripts > at the appropriate times. If you check the mailing list archive, I > know I have previously posted the script I used to use for exactly the > same purpose. > _______________________________________________ > firstname.lastname@example.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "[EMAIL PROTECTED]" -- kelvin _______________________________________________ email@example.com mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"