Configuring automatic update of IP address in DynDNS and OpenDNS

Updated March 29, 2009: Removed '-daemon 300' flag from /etc/cron.daily/ddclient script.

I wanted to configure automatic updating of the dynamic IP address assigned by my ISP to both OpenDNS and DynDNS. I did this using ddclient.

Directions for configuring ddclient for OpenDNS can be found here and directions for DynDNS can be found here.

Here's what I did:

# apt-get install ddclient
I went ahead and entered configuration for DynDNS during the install when prompted.
# vi /etc/ddclient.conf
# cat ddclient.conf

# Configuration file for ddclient
#
# /etc/ddclient.conf

pid=/var/run/ddclient.pid
ssl=yes
protocol=dyndns2
use=web
server=members.dyndns.org
login=dyndns-login
password=dyndns-password
my-addr.dyndns.org

##
## OpenDNS.com account-configuration
##
use=web, web=whatismyip.org
server=updates.opendns.com
protocol=dyndns2
login=opendns-login
password=opendns-password
OpenDNS-Network-Label

# chmod 600 /etc/ddclient.conf
# vi /etc/cron.daily/ddclient
# cat /etc/cron.daily/ddclient

#!/bin/sh
/usr/sbin/ddclient -syslog

# chmod +x /etc/cron.daily/ddclient