Ddns basic

• /usr/local/bin/ddns

#!/bin/bash
case $reason in
TTL=1
SERVER="10.80.100.10"
HOSTNAME=$1
KEY=""
KEYNAME="ferengie.com"
#IP=$(ifconfig eth1 | grep "inet addr" | tr -s " " | cut -f 3 -d " " | cut -f 2 -d :)
IP=$(ip addr ls | grep eth1 | grep inet | tr -s " " | cut -f 3 -d " "  | cut -f 1 -d "/")
date >> /var/log/ddns.log
nsupdate -v  >> /var/log/ddns.log << EOF
key $KEYNAME $KEY
server $SERVER
update delete $HOSTNAME A
update add $HOSTNAME $TTL A $IP
send
EOF
cat  >> /var/log/ddns.log << EOF
key $KEYNAME $KEY
server $SERVER
update delete $HOSTNAME A
update add $HOSTNAME $TTL A $IP
send
EOF
#exit 0
;;
esac