changeip update script

custom-dyndns

#!/bin/sh
#
# /etc/network/if-up.d/custom-dyndns
#
# Update dynamic dns provider changeip.com.
#
# Create a link with:
#   `sudo ln ~/.bin/changeipcom /etc/network/if-up.d/custom-dyndns`
#
# Save your sensitive data in /root/secrets:
#    export CHANGEIP_HOST=hostname
#    export CHANGEIP_USER=username
#    export CHANGEIP_PWD=password
#
# Copyright (C) 2018 Silly S. Lux - All Rights Reserved
# Permission to copy and modify is granted under the MIT license
# Last revised 3/14/2018

if [ $IFACE = ppp0 ] && [ $MODE = start ] && [ $PHASE = post-up ]; then
        . /root/secrets
        PPPIP=${IP4_ADDRESS_0%/*}
        MSG=$(wget -qO - https://nic.changeip.com/nic/update?u=$CHANGEIP_USER\&p=$CHANGEIP_PWD\&hostname=$CHANGEIP_HOST\&ip=$PPPIP)
        logger -p local0.info "changeip.org: $MSG ($PPPIP)"
fi