Upstart not running my dynamic DNS script

Question

I have a dynamic DNS script as follows:

#!/bin/bash
curl -kL# "http://example.com/updatedns.php"
echo $? >> /var/log/ddns

...saved to /usr/local/bin/ddns. Obviously the URL above isn't the one I actually use, but the URL is meant to set the A record of my domain to the IP of the machine that requested it. I have confirmed it has been chmodded and runs from the command line, however, Upstart, which has been set up with the following script:

start on network started
exec /usr/local/bin/ddns

...doesn't execute it when the network starts (which I'm assuming is when the machine is booted or I connect the network cord).

I googled start on network started and found some results saying that this stanza doesn't actually get started properly, but still gets triggered, however I'm not sure if that's related or not. Am I doing something wrong? I'm running Ubuntu Server 11.10.

Answer 1

grep 'emit' /etc/network/if-up.d/upstart -a5

Suggests you should probably use start on net-device-up.

If you have more than one det device (and all don't have gateways), you can add an argument on the end like so:

start on net-device-up IFACE=eth0

Answer 2

The traditional (pre-upstart, and still working) method was to place scripts in /etc/network/if-up.d directory.

Note that Ubuntu has pre-packaged DynDNS updating scripts: I can see dyndns, ddclient, inadyn, ez-ipupdate, and ipcheck packaged in Ubuntu. All should work :)

Answer 3

root@HKHHKGSCP1MS003:/home/ms003# ./audit_linux.sh : No such file or directoryd: /tmp : Unknown hostcs.com Not connected. ?Invalid command Not connected. ?Invalid command root@HKHHKGSCP1MS003:/home/ms003#

why its not running properly. here is the script.

HOST=hostname dmidecode > /tmp/$HOST lspci -v >> /tmp/$HOST cd /tmp ftp -n << EOF open fsserv.sscs.com user tsys_upload_audit T@ys-Upl04D binary put $HOST quit EOF root@HKHHKGSCP1MS003:/home/ms003#